Entries |
Document | Title | Date |
20080219862 | Compressor - A compressor is provided. The compressor includes a motor that generates power to rotate a crank shaft. The motor includes a rotor rotating about a stator supported in a hermetic vessel by an elastic member. A roller is provided eccentric to the center of rotation of the crank shaft and rotates eccentrically to divide the compression chamber into two regions with a vane so as to allow working fluids to be drawn into, compressed discharged from the compression chamber. A compressor so configured minimizes fluidity and friction losses, thereby improving compression efficiency. The working fluids do not have influence upon/from the inside of are not influenced by an environment with the hermetic vessel, and vibration is minimized, thus enhancing compression efficiency and reducing associated noise. | 09-11-2008 |
20080219863 | Connector for hermetic compressor and suction device of working fluid using the same - A connector for a hermetic compressor and a working fluid suction device using such a connector are provided. The compressor includes a suction pipe coupled to a casing so as to transfer working fluids into a silencer housed in the casing to attenuate noise. The connector includes a connector pipe extending between the suction pipe and the silencer and coupled to a communication pipe provided on an outer surface of the silencer, an enlarged-diameter part extending from the connector pipe toward the suction pipe at a predetermined angle; and a contact skirt provided at a leading edge of the enlarged-diameter part. The contact skirt comes into close contact with an inner circumferential surface of the casing, allowing working fluids to flow into the silencer without leakage, thus improving fluid flow into the compressor. | 09-11-2008 |
20080226472 | Air Blower - The air blower includes a case body having an air suction mouth formed at least one side surface thereof and an outlet formed at a peripheral wall thereof; a motor which is installed into the case body, having a fluid dynamic bearing; and an impeller which is fixed to a rotation member of the motor in order to locate at an outer circumferential part of the motor, suctioning air from the air suction mouth by rotating and discharging from the outlet. Therefore, it can rotate at a high speed, blow in under high pressure at large air volume even though it is small size and is economical and long-lived. | 09-18-2008 |
20080247886 | Hermetic Compressor - A hermetic compressor has a hermetic container storing an oil, and a compressing element accommodated in the hermetic container and compressing a refrigerant gas; the compressing element has a compressing chamber, a cylinder forming the compressing chamber, a piston inserted into the cylinder and reciprocating, and a suction muffler ( | 10-09-2008 |
20080260546 | Compressor Sound Suppression - A compressor apparatus having a check valve ( | 10-23-2008 |
20080260547 | COMPRESSOR SOUND SUPPRESSION - A compressor includes a housing and one or more working elements. A muffler is located downstream of the discharge plenum and a helmholtz resonator is located in the discharge plenum upstream of the muffler. | 10-23-2008 |
20080267792 | Hermetic Compressor - A hermetic compressor has a hermetic container, a suction pipe, a compressing mechanism and a suction muffler. The suction pipe includes a large diameter part opening to an inside of the hermetic container and a small diameter part connected to an external refrigerating system, and the suction pipe is fixed with the hermetic container. The compressing mechanism is accommodated inside the hermetic container. The suction muffler forms a muffling space communicated with the compressing mechanism. The suction muffler is provided with an inlet opening which communicates the muffling space with an inside space of the hermetic container and faces closely an opening of the large diameter part of the suction pipe. | 10-30-2008 |
20080286127 | INTEGRATED ACOUSTIC DAMPER WITH THIN SHEET INSERT - An exemplary noise damper for a compressor of a turbocharger includes a compressor housing comprising a cavity substantially adjacent a gas flow surface of a conduit to a compressed gas outlet of the compressor housing and an insert that spans the cavity and forms a wall of the cavity where the wall includes one or more openings to the cavity to thereby allow acoustic energy to be damped by the cavity. Various other exemplary technologies are also disclosed. | 11-20-2008 |
20090004031 | Hermetic Compressor - A hermetic compressor includes a hermetic container having an inner space, a cylinder accommodated in the hermetic container and arranged to compress refrigerant, an intake muffler accommodated in the hermetic container and having a silencer space having a longitudinal direction, a communication tube communicating with the cylinder, and a tail tube communicating with the inner space of the hermetic container. The communication tube and the tail tube have first and second opening ends opening in the silencer space, respectively. The first and second opening ends are located in a predetermined direction from a center of the silencer space along the longitudinal direction of the silencer space. A distance between the first opening end and the second opening end along the longitudinal direction is shorter than at least one of a distance between the first opening end and the center along the longitudinal direction and a distance between the second opening end and the center along the longitudinal direction. The hermetic compressor produces little noise and has a stable performance. | 01-01-2009 |
20090022605 | HERMETIC COMPRESSOR - A hermetic compressor having improved configuration of a cylinder head to more efficiently attenuate noise and vibration of refrigerant discharge. The hermetic compressor includes a cylinder block having a compression chamber in which a piston rectilinearly reciprocates, and a cylinder head coupled with the cylinder block to hermetically seal the compression chamber. The cylinder head has a suction chamber and discharge chamber, which are partitioned from each other. The suction chamber serves to guide a refrigerant to be introduced into the compression chamber, and the discharge chamber serves to guide the refrigerant, which was delivered from the compression chamber after being compressed in the compression chamber, to the outside. The hermetic compressor also includes a valve device interposed between the cylinder block and the cylinder head, to control movement of the refrigerant from the suction chamber to the compression chamber or from the compression chamber to the discharge chamber. A partition member having a bore is detachably mounted in the cylinder head, to divide the discharge chamber into two parts, in order to integrally define a Helmholtz resonator in the discharge chamber. | 01-22-2009 |
20090028725 | Hermetic compressor - A hermetic compressor for adjusting the length and cross sectional area of a communication path as a refrigerant flow passage, so as to attenuate a discharge pulsation and consequently, a vibration and noise thereof. The hermetic compressor, which includes a cylinder head having a discharge chamber to discharge a compressed refrigerant and a discharge muffler to receive the refrigerant discharged from the discharge chamber, further includes a communication path to communicate the discharge chamber and the discharge muffler with each other, so as to allow the refrigerant to flow from the discharge chamber into the discharge muffler, and an auxiliary communication tube to increase a length of the communication path for increasing a refrigerant flow distance. The auxiliary communication path reduces the cross sectional area of a refrigerant flow passage while increasing a refrigerant flow distance, thereby attenuating a low-frequency component of the discharge pulsation. | 01-29-2009 |
20090028726 | Suction muffler for hermetic compressor - Disclosed is a suction muffler for a hermetic compressor. The suction muffler includes first and second bodies coupled to each other. The first and second bodies have coupling protrusion and recess formed in corresponding positions, respectively. A coupling rib protrudes from the coupling protrusion, and a coupling channel is formed as an indentation on the coupling recess. Coupling guide surfaces are formed on corresponding portions of the coupling rib and recess, respectively, so that the coupling protrusion and recess can be fastened to each other more smoothly. The coupling guide surfaces of the coupling protrusion and recess guide and facilitate the coupling between the first and second bodies. The coupling protrusion and recess are coupled to each other by geometric characteristics so that no separate process is necessary to couple the first and second bodies to each other. This improves the productivity and quality of the suction muffler. | 01-29-2009 |
20090060759 | Compressor sound suppression - A compressor has first and second enmeshed rotors: rotating about first and second axes. The first rotor is supported by a bearing system carried by a bearing case. The bearing case has at least a first port to a discharge plenum. A first sound-absorbing material is positioned within the first port. | 03-05-2009 |
20090068028 | Compressor muffler - A compressor has first and second enmeshed rotors rotating about first and second axes to pump refrigerant to a discharge plenum. The compressor includes a muffler system comprising a sound absorbing first element and a sound absorbing second element. The second element at least partially surrounds the first element and defines a generally annular flow path portion between the first element and the second element At least one of the first and second elements comprises an expanded bead material. | 03-12-2009 |
20090068029 | Refrigerant Compressor - A hermetically encapsulated refrigerant compressor, comprising a hermetically sealed compressor housing, in the interior of which a piston-cylinder unit works which compresses a refrigerant, whose cylinder housing ( | 03-12-2009 |
20090081054 | Structure of Discharging Refrigerant For Linear Compressor - The present invention discloses a linear compressor in which a piston is linearly reciprocated inside a cylinder, for sicking a refrigerant into a compression space between the piston and the cylinder, and compressing and discharging the refrigerant, and especially, a structure of discharging the refrigerant for the linear compressor which can reduce a pulsation of a high pressure discharged refrigerant, by making the refrigerant compressed in the compression space flow from a sub-discharge space with a relatively small volume to a sub-discharge space with a relatively large volume in a discharge chamber. As a result, the structure of discharging the refrigerant for the linear compressor can efficiently reduce noise and vibration. | 03-26-2009 |
20090097992 | External gear hydraulic pump with acoustical insulation - The invention concerns an external gear hydraulic pump including a pump body housing rotating pinions that mutually engage. Located on opposite sides of the body are a cover and a support, forming an outlet manifold for high pressure fluid. Acoustic insulation elements damp the vibrations produced by the pinions. The acoustic insulation elements acoustically decouple the pump body from the support. | 04-16-2009 |
20090104050 | Compressor - A suction muffler receives low-temperature refrigerant gas discharged into a hermetic container from a suction pipe by a gas catcher, and feeds the gas to a compressor. The lower end of an opening of the gas catcher is located at a position lower than the lower end of an orifice of the suction pipe so as to catch the refrigerant gas falling obliquely downward inside the hermetic container. | 04-23-2009 |
20090116977 | Compressor With Muffler - A compressor assembly may include a shell, a discharge fitting, a muffler, a compression mechanism, and a motor. The shell may have an opening therethrough with the discharge fitting generally extending therefrom. The muffler may be in communication with the discharge fitting and may be external to the shell. The muffler may have an inlet proximate the discharge fitting, an outlet distal from the discharge fitting, and a body portion extending therebetween. The muffler may include a valve assembly proximate the outlet. The compression mechanism may be contained within the shell and include a suction inlet and a discharge passageway. The discharge passageway may be connected to the opening in the shell for direct discharge of refrigerant from the compression mechanism to the discharge fitting. The motor may be contained within the shell and drivingly coupled to the compression mechanism. | 05-07-2009 |
20090129950 | Oil pump resonator - The invention provides an oil pump resonator in which various vibrations caused by pulsations that change in response to changes in oil pressure on a discharge port side can be attenuated by a resonator that comprises only one chamber, whereby the volume occupied by the resonator can be minimized. An oil pump in an engine, for feeding oil from a suction port to a discharge port through rotation of a rotor fitted in a pump housing, includes: a discharge flow channel communicating with the discharge port; a resonator comprising an introduction channel formed in the discharge flow channel and a chamber communicating with the introduction channel; and a piston having a leading end face section that makes up an inner wall face of the chamber, and reciprocating in response to pulsation changes. The piston slides so as to reduce the volume of the chamber as the frequency distribution of the pulsations becomes higher. | 05-21-2009 |
20090136365 | Refrigerant Compressor - The invention relates to a hermetically encapsulated refrigeration compressor comprising a hermetically sealed compressor housing containing a piston-cylinder unit compressing a refrigerating agent. The cylinder is closed by means of a valve plate comprising a pressure borehole and a suction borehole, and a suction channel and a pressure channel are used to suck the refrigerating agent into the suction borehole by means of a suction valve, and to compress the refrigerating agent passing from the pressure borehole into the pressure channel by means of a pressure valve. Preferably, a suction sound absorber is arranged in the suction channel. The aim of the invention is to create one such refrigeration compressor that enables a significant decrease in the suction temperature and the exhaust temperature. To this end, the pressure channel is formed by a component that surrounds the entire pressure channel and is connected to the valve plate in a sealed manner along a pressure contact edge formed by an end section of the component. The pressure borehole and the mobile part of the pressure valve are arranged inside the surface surrounded by the pressure contact edge. | 05-28-2009 |
20090136366 | Compressor - [Object of the Invention] An object of the present invention is to provide a compressor comprising a compressing mechanism, a discharge chamber, a housing accommodating the compressing mechanism and the discharge chamber, a discharge port communicating with the discharge chamber through a discharge passage and also with an external refrigerant circuit, a muffler formed by an expanded space disposed on the discharge passage, and a check valve disposed on the discharge passage, wherein the pressure loss caused by the discharge passage is smaller than that in the conventional compressor. | 05-28-2009 |
20090162215 | COMPRESSOR - A reciprocating compressor in which cylinder bores are formed and a muffler device is provided. The internal space of the muffler device is divided into at least two compartments by a partition wall. A cylindrical body, which allows the two compartments to communicate with each other and has the length of 16 to 50% of the overall length of the internal space, is provided in the partition wall. In particular, the overall length of the internal space of the muffler device is set to be within the range of 100 to 120 mm and the length of the cylindrical body is set to be within the range of 20 to 50 mm. Consequently, the muffler device can effectively attenuate and reduce the pulsation generated from the compressor and can be manufactured at a low cost. | 06-25-2009 |
20090175739 | DUAL DRIVE COMPRESSOR - A dual drive compressor is disclosed including a suction chamber having at least one muffler incorporated therein, wherein the at least one muffler attenuates pulsations caused by a fluid received in the compressor. | 07-09-2009 |
20090175740 | Compressor - A muffler cover of a compression element has discharge outlets or hole portions that discharge a compressed refrigerant gas into a closed vessel from a compression element. A suction pipe provides refrigerant gas, which can be sucked into the compression element in the closed vessel. The suction pipe is attached to the closed vessel. A first direction and a second direction, which correspond to natural vibration modes of the suction pipes, do not coincide with a direction that connects two hole portions. Therefore, even if the refrigerant gas discharged from the compression element resonates in the closed vessel, vibrations of the suction pipe can be reduced. | 07-09-2009 |
20090175741 | Refrigerant Compressor - A hermetically encapsulated refrigerant compressor which has a hermetically sealed compressor housing ( | 07-09-2009 |
20090232669 | Refrigerant Compressor - A refrigerant compressor including a discharge valve system, which is configured in such a manner that the discharge valve system includes recess ( | 09-17-2009 |
20090232670 | Compressor muffler - A compressor muffler ( | 09-17-2009 |
20090232671 | Discharging Noise System of a Hermetic Compressor - The present invention relates to a discharging noise system of a hermetic compressor. The present invention includes a first discharging noise suppressor ( | 09-17-2009 |
20090257892 | SUCTION MUFFLER FOR A HERMETICALLY ENCLOSED REFRIGERANT COMPRESSOR - The invention concerns a suction muffler ( | 10-15-2009 |
20090269219 | Domestic appliance with a sound damper - A sound absorber for a flow of gas which is subjected to a noise, including a pipe section which is substantially straight along an axis, is bounded by two openings which are situated one behind the other with respect to the axis and which has a guide body which is fitted into the pipe section approximately on the axis and is held by at least one spoke. A projection of the guide body parallel to the axis on a surface which contains the openings covers this opening substantially completely, and gas can flow around the guide body and an inner surface which faces said guide body substantially without turbulence in the flow. | 10-29-2009 |
20090304532 | MULTIPLE MEMBRANE PUMP FOR FOOD LIQUIDS AND THE LIKE - A multiple membrane pump for food liquids, comprising at least one duct for the compensated intake of the liquid, which is closed on itself in a loop and is provided with at least one intake port, at least one duct for the compensated delivery of the liquid, which is closed on itself in a loop and is provided with at least one delivery port, at least four branches, which provide a unidirectional connection between the intake duct and the delivery duct and are associated respectively with four liquid pumping membranes, a gearmotor assembly, which is associated with a crank system for actuating the membranes and is adapted to convert the rotary motion of an output shaft of the gearmotor assembly into a reciprocating motion, adjusted with an appropriate timing between two mutually opposite intake and delivery stroke limit positions, of each of the actuation axes of the membranes. | 12-10-2009 |
20100008798 | BLOWER NOISE MUFFLER APPARATUS AND SYSTEM - A system for dampening sound produced by an air blower such as that used to inflate an inflatable movie screen or other inflatable structures. The system can include an air blower and a muffler. The muffler is configured to reduce or dampen sound output from the air blower and includes one or more surfaces that enclose at least a portion of the blower. An opening may be formed in the muffler to facilitate air flow into the air blower. The blower can include a fan and the opening may allow air to pass through into a space in the interior of the muffler and to the fan, so that it can be output to the inflatable movie screen. The muffler may also include a second opening. The second opening can facilitate output of the air by the blower and to the inflatable movie screen. | 01-14-2010 |
20100047087 | ROTARY COMPRESSOR - A rotary compressor includes a rotation compression element, a discharge port and a muffler. The rotation compression element is configured to compress gas as a result of rotation of a crankshaft about a rotation axis. The discharge port is configured to discharge the gas compressed by the rotation compression element. The muffler is arranged to cover the discharge port and surround the crankshaft. The muffler has a muffler crankshaft hole through which the crankshaft passes, and a muffler discharge region configured to discharge the compressed gas discharged from the discharge port toward an outer surface of the crankshaft. | 02-25-2010 |
20100129234 | SHOCK DAMPER FOR OUTLET PIPE OF DIAPHRAGM PUMP - The present invention provides a shock damper for outlet pipe of diaphragm pump comprising a shock damper pod including an intake jointer, an outtake jointer, a stroke cavity and a cap receptacle, a damping block, a damping elastomer and a damper cap. After screwing the intake jointer into the water outlet orifice of the pump upper hood with motor power on, pressurized water come from high-pressured chamber will flow into water intake channel of shock damper pod to impact damping block in periodically pulsatile manner; Meanwhile, resilient force of compressed spring will offset the periodic impact of pressurized water in counteracting damper manner so that pressurized water will become a steady flow without any pulsation. Accordingly, the shock damper not only can obviate the shock and vibration for the outlet pipe but also can reduce the shock and annoying noise in the pump upper hood. | 05-27-2010 |
20100158711 | COMPRESSOR - Oil sucked by an oil pump and supplied to an opening at an eccentric shaft flows on the top end face of the eccentric shaft to the outer periphery thereof, and splashes from an edge in substantially a radial direction onto the sliding portions of a cylinder and a piston. Thus, the oil can cool the cylinder and piston, form oil film on the sliding portions of the cylinder and piston, restrain metallic contact between the sliding portions, and prevent abrasion between the sliding portions and increasing input into the compressor. | 06-24-2010 |
20100215515 | Pump unit as well as a pump and a discharge connection - In a first aspect the invention relates to a pump unit comprising a discharge connection ( | 08-26-2010 |
20100215516 | PULSATION ATTENUATION IN SYSTEMS WITH MULTIPLE COMPRESSION ELEMENTS - In compression systems having multiple sources of pulsation induced noise, provisions are made to reduce the noise by selectively varying the length of adjacent refrigerant lines leading to a common refrigerant manifold. Each of the refrigerant lines is associated with a particular noise source. The feature can be incorporated into compressors operating in parallel or in a single multi-rotor compressor having multiple suction or/and discharge ports. It is equally applicable to both discharge and suction ports. | 08-26-2010 |
20100226796 | ROTARY COMPRESSOR - A stagnation space defined by barriers is provided in a first muffler chamber communicating with a first cylinder chamber. The stagnation space overlaps with a refrigerant-gas inlet side of the first cylinder chamber, the inlet side being bordered by a center plane as viewed in a direction of a center axis of the first cylinder chamber. In the first muffler chamber, the high-temperature, high-pressure refrigerant gas is unlikely to enter into the stagnation space, so that heat is less absorbed to the inlet side of the first cylinder chamber. | 09-09-2010 |
20100239438 | HERMETIC COMPRESSOR - A Inlet pipe ( | 09-23-2010 |
20100247339 | NOISE-ATTENUATING DEVICE FOR HVAC AND REFRIGERATION SYSTEMS - A noise-attenuating device for an HVAC and refrigeration system is provided. The HVAC and refrigeration system includes a condenser and at least one fan system. The noise-attenuating device includes an inner shell with a first outer surface, a first inner surface and a layer of a noise-absorbent material enclosed between the first outer surface and the first inner surface. The noise-attenuating device also includes an outer shell with a second outer surface, a second inner surface, and a layer of the noise-absorbent material enclosed between the second outer surface and the second inner surface. The noise generated in the condenser is minimized by using the noise-attenuating device. | 09-30-2010 |
20100260621 | HERMETIC COMPRESSOR - A compression element is provided with a block, a piston, a valve plate arranged in an opening end of a compression chamber and forming a suction hole, a suction valve, a suction muffler forming a sound absorbing space and provided with a communication pipe, and a cylinder head, the communication pipe has a suction muffler outlet portion communicated with the suction hole, is arranged in such a manner as to extend in a vertical direction with respect to a center line passing through the suction hole, and is arranged in such a manner that a part of the suction muffler outlet portion covers a part of the suction hole in the suction muffler outlet portion positioned in a downstream side of refrigerant gas flowing through the communication pipe, in the case of projection the suction muffler outlet portion in a direction of a center line. | 10-14-2010 |
20100290928 | NOISE REDUCING DEVICE FOR HERMETIC TYPE COMPRESSOR - The present invention relates to a noise reducing device for a hermetic type compressor. The noise reducing device for a hermetic type compressor according to the present invention is configurated to have a plate film ( | 11-18-2010 |
20100310388 | SEALING STRUCTURE AND COMPRSSOR - A sealing is arranged between a rear head having an ejection port configured and arranged to eject compressed refrigerant and a rear muffler disposed so that a muffler space is formed between the rear muffler and the rear head. The rear head includes a main body having a bearing hole, an annular boss portion protruding from the main body and circumscribing the bearing hole, and an annular side wall protruding from the main body and circumscribing the boss portion. The rear muffler has an opening and is fastened to the end surface of the side wall so that the peripheral portion of the opening contacts the end surface of the boss portion. Preferably, the end surface of the boss portion has a part entirely further from the main body than the end surface of the side wall. | 12-09-2010 |
20100310389 | SYSTEM FOR ATTENUATING PULSATION IN THE GAS DISCHARGE OF A REFRIGERATION COMPRESSOR - The attenuation system is applied to a compressor which comprises: a cylinder ( | 12-09-2010 |
20100329899 | MULTI-FREQUENCY PULSATION ABSORBER AT CYLINDER VALVE CAP - A multi-chambered pulsation absorber for attachment over the valve cap opening of a compressor cylinder. Each chamber is in fluid communication with the valve cap opening (or cylinder internal gas passages) via an associated choke tube. Each pairing of a chamber with a choke tube is tuned, in the manner of a Helmholz resonator, to attenuate and nearly eliminate a different cylinder-related pulsation frequency, such as those resulting from internal cylinder pulsations or cylinder nozzle pulsations. | 12-30-2010 |
20110014065 | MUFFLER FOR COMPRESSOR - Disclosed is a muffler for a compressor, which has a chamber between an inlet and an outlet and also appropriately designs a size of a communicating pipe for indirectly connecting the inlet to the outlet as well as a size of a noise space, whereby a suction loss of a refrigerant sucked into the muffler for the compressor can be reduced and also pressure pulsation can be reduced so as to enhance a cooling capability of the compressor and a noise reduction effect. Also, an assembling structure of the muffler can be simplified, resulting in reduction of fabricating cost and improvement of productivity. | 01-20-2011 |
20110070105 | CONSTRUCTIVE ARRANGEMENT FOR A HERMETIC REFRIGERATION COMPRESSOR - A hermetic compressor, comprises: a hermetic shell ( | 03-24-2011 |
20110103978 | TURBINE WITH IMPROVED SOUND REDUCTION - The present disclosure generally relates to a turbine for a fluid delivery system and more specifically, but not by limitation, to a portable air turbine for a fluid delivery system having improved sound reduction. In one exemplary embodiment, a portable turbine apparatus is provided and includes a motor and a turbine configured to be driven by the motor for providing pressurized air to an outlet. A first inlet airflow path delivers air to the motor. A first silencer component having sound absorptive material is positioned along the first inlet airflow path and includes at least one orifice formed therethrough for the first inlet airflow path, the at least one orifice having a cross-sectional area of at least 0.01 square inches. A second inlet airflow path delivers air to the turbine. A second silencer component having sound absorptive material is positioned along the second inlet airflow path and includes at least one orifice formed therethrough for the second inlet airflow path, the at least one orifice having a cross-sectional area of at least 0.01 square inches. | 05-05-2011 |
20110171046 | NOISE MUFFLER FOR COMPRESSOR AND COMPRESSOR - The present invention refers to a noise muffler for refrigeration compressors capable of dampening noise generated by the intermittent flow of the compressor and at the same time a muffler that reduces the loss of load in the refrigeration system. Accordingly, a noise muffler for a refrigeration compressor ( | 07-14-2011 |
20110243760 | Pressure Recovery Insert for Reciprocating Gas Compressor - A method of reducing pulsations in a reciprocating compressor system, the system having nozzles between cylinders and filter bottles of the compressor system, the nozzles attaching at ports of the cylinders and filter bottles. A special insert is designed to be placed in one or more of the nozzle. The insert is generally cylindrical, but has a narrowed throat, a flared inlet end, and a flared outlet end. The insert dimensions, such as the inner diameter of the throat and the distance from the throat to the outlet end are calculated to reduce pulsations as well as provide pressure recovery. | 10-06-2011 |
20110243761 | Pulsation Dampener for Gas Compressors Having Selectable Size Choke Openings - A gas flow pressure pulsation dampener includes a sealed housing having an inlet port, an outlet port a center section disposed between the inlet port and the outlet port. A choke plate is rotatably disposed in the center section and has a plurality of different size openings disposed circumferentially about the plate. The plate is positioned in the center section so that the openings are placed between the inlet port and the outlet port. The size differences between the openings and the circumferential separation between adjacent openings are selected so that the plate always presents one full opening or parts of two openings between the inlet port and the outlet port. Means for rotating the choke plate are provided to select one of the choke openings to be disposed between the inlet port and the outlet port. | 10-06-2011 |
20110280743 | HERMETIC COMPRESSOR - The present invention discloses a hermetic compressor which can reduce the noise by regulating a suction pressure in a connector enabling a suction pipe of a hermetic container and a suction muffler to communicate with each other. The hermetic compressor includes: a hermetic container including a suction pipe through which refrigerant is sucked and accommodating a compression mechanism unit for compressing the refrigerant; a suction muffler fixed to the compression mechanism unit and reducing the flow noise when the refrigerant passes; and a connector enabling the suction pipe and the suction muffler to communicate with each other and including a hole on a refrigerant passage to communicate with an inner space of the hermetic container. An inner pressure of the connector is equalized with an inner pressure of the hermetic container, which raises a refrigerant suction pressure. As a difference between the refrigerant suction pressure and the pressure of the compression space is reduced, the noise generated during the refrigerant suction can be reduced. | 11-17-2011 |
20120003106 | TUNABLE CHOKE TUBE FOR PULSATION CONTROL DEVICE USED WITH GAS COMPRESSOR - A method and system for reducing pulsation in a gas compressor system. A pulsation control device, such as a filter bottle or side branch absorber, is installed at a port into some location on the compressor system. The pulsation control device has a choke tube with a variable cross-sectional area, such as by having multiple conduits that may be opened or closed or a diameter that may be varied. In operation, the cross sectional area of the choke tube is varied depending on the compressor speed. | 01-05-2012 |
20120045349 | PRESSURE PULSATION DAMPENER - A pressure pulsation dampener for use in a gas stream is disclosed herein. The dampener can include a housing with an inlet half and an outlet half having a recess, a shaft hole, and an extension with an outlet port. The inlet half can be secured to the outlet half, and can have an extension with an inlet port, forming a flow path. A choke plate can be disposed in the recess within the flow path. A shaft can be disposed through the outlet half to move the openings. The dampener can include an indicator plate with indicator openings. A fastener can engage the indicator openings and secure to the outlet half. The dampener can have a transducer, a motor connected to the shaft, a motor driver, and a controller in communication with the motor driver for comparing frequency rates to preset limits and activating the motor. | 02-23-2012 |
20120257993 | SEALED COMPRESSOR - A sealed compressor according to the present invention comprises an electric element; a compression element; a sealed container; and a suction pipe. The compression element includes a compression chamber, a piston provided inside of the compression chamber, and a suction muffler communicating with the inside of the sealed container and the compression chamber. The suction muffler is laid out such that an opening portion thereof at the sealed container side faces an opening portion of the suction pipe at the sealed container side. The suction muffler includes: a hood section provided in the vicinity of the opening portion of the suction muffler to extend toward the inside of the sealed container, the hood section being configured to collect cooling medium gas discharged from the suction pipe; and an auxiliary hood fastened to the hood section and formed in a manner to increase a collection area of the hood section. | 10-11-2012 |
20120275935 | Inlet Plenum with Shock Wave Suppression - An inlet plenum for a compressor that suppresses acoustic shock waves generated by the compressor, which inlet plenum has an inlet duct with a wall that surrounds an air flow path between a mouth of the inlet plenum and the compressor, comprises: at least one cavity that penetrates an inner surface of the wall, circumscribes the inner surface generally transversely to the air flow path and has a position along the air flow path that is generally coincident with at least one constructive interference peak of the acoustic shock waves along the inner surface; a width of the cavity along the direction of the air flow that is less than or equal to the wavelength of at least one of the acoustic shock waves; and a depth of the cavity generally perpendicular to the direction of the air flow that approximates a multiple of a quarter wavelength of at least one of the acoustic shock waves. | 11-01-2012 |
20120282119 | Dynamic compression compensator for submersible pumps - A dynamic variable compression ring for use in submersible pumps. where the variable compression ring compensates for metal compression ring measurement errors during assembly. The dynamic variable compression ring also allows for thermal heating of the internal pump components, thus maintaining the desired diffuser compression values. | 11-08-2012 |
20120301329 | Airflow Assembly having Improved Acoustical Performance - An airflow assembly, includes a plenum, a barrel, a fan support, a fan assembly, and a plurality of ribs. The plenum includes an opening structure defining a plenum opening. The barrel extends in a downstream direction from the opening structure, and defines a barrel space and a downstream edge. The fan support is at least partially positioned within the barrel space. The fan assembly is supported by the fan support and includes (i) a motor and (ii) a blade assembly configured to rotate about an axis. Each of the ribs extends between (i) the opening structure or the barrel and (ii) the fan support. The downstream direction is parallel to the axis. An upstream direction is opposite of the downstream direction and parallel to the axis. A plane intersects the axis and is perpendicular to the axis. | 11-29-2012 |
20130028758 | MANUAL SELECTIVE ATTENUATOR - An attenuating apparatus for use with a positive displacement compressor. The device includes a bore formed in a housing of the compressor, the bore being positioned at an angle to a discharge chamber of the compressor and in fluid communication with the compressor discharge chamber. A plug is positioned within the bore, the plug movable within the bore to a preselected position. The plug has a first end in contact with a gas from the compressor discharge chamber and a second, opposite end being accessible from an exterior of the housing. A seal is positioned between the plug and the bore to seal an interface between the plug and the bore to prevent leakage of a gas from the compressor discharge chamber along the interface. The plug is lockable within the bore at the preselected position. The preselected position of the plug within the bore determines a bore length in fluid communication with the compressor discharge chamber, which attenuates sound from gas pulsations resulting from discharge of compressed gas from the operation of the compressor. The bore and plug are threaded to facilitate the adjustment of the plug within the bore. | 01-31-2013 |
20130058802 | LOW ICE PNEUMATIC MOTOR EXHAUST MUFFLER - A muffler for a positive displacement pneumatic motor includes a case, an inlet, a diffuser, a pathway, and sound absorbing material. The inlet and the diffuser are attached to the case. The pathway extends between the inlet and the diffuser and allows ice to travel through the muffler. The sound absorbing material is positioned in the pathway and includes more than one duct through which gas passes. | 03-07-2013 |
20130136626 | SCREW COMPRESSOR WITH MUFFLE STRUCTURE AND ROTOR SEAT THEREOF - A rotor seat for a screw compressor with a muffle structure is provided. The rotor seat includes a seat body, a radial exhaust port arranged at the seat, a female rotor hole and a male rotor hole. The rotor seat further includes a plurality of axial blind holes arranged on a surface where the radial exhaust port is located. | 05-30-2013 |
20130136627 | OUTLET DEVICE WITH COLLECTED OUTER SOUND TO CONTROL THE WATERWAY - An outlet device with collected the outer sound to control the waterway includes a shower, an electromagnetic valve, a control module and a power module with an impeller and a generator. The control module includes a sound detecting module, a calculating module, a processing module and a driving module. The sound detecting module collects the outer sound and outputs the control signal; the calculating module is connected to the power module to determine whether the real-time flowing value exceeds the preset value. If it exceeds the present value, the control module and the electromagnetic valve are turned off. The calculating module is connected to the sound detecting module and outputs the driving signal after receiving the control signal. The driving module is connected to the processing module and the electromagnetic valve. The driving module drives the electromagnetic valve when receiving the driving signal. | 05-30-2013 |
20130280109 | MODULAR DISCHARGE SILENCER FOR VEHICLE-MOUNTED COMPRESSOR - A modular silencer for use on a compressor or blower mounted on a vehicle. The compressor has an intake port and an exhaust port, and the silencer has an inlet port in communication with the exhaust port of the compressor. The silencer includes a silencer housing and a resonator assembly removably positioned inside the housing. In one embodiment, the compressor includes a compressor housing and a power input shaft protruding from the compressor housing adjacent the air exhaust port. The silencer housing preferably includes a concave portion that at least partially receives the power input shaft. The silencer housing can also include a groove on the inner surface, and the resonator assembly can be at least partially positioned in the groove. Preferably, the resonator assembly includes a resonator plate, a plurality of resonator pipes extending through the plate, and a reinforcing flange coupled between at least two of the resonator pipes. | 10-24-2013 |
20130287599 | ENERGY-SAVING SILENCER ASSEMBLY, A SEMICONDUCTOR MANUFACTURING VACUUM PUMP WITH SAME AND METHOD FOR HEATING NITROGEN GAS - The disclosure relates to an energy-saving silencer assembly, which includes: a silencer connected to a discharge side of a pump section, which pumps reaction by-product gas into a vacuum pump, so as to pass the pumped reaction by-product gas from a rear end portion to a front end portion; an outer pipe surrounding the outer peripheral surface of the silencer at an interval so as to provide a heating space between the silencer and the outer pipe; a nitrogen gas supply section for supplying nitrogen gas to the heating space; and a nitrogen gas injection section for injecting heated nitrogen gas to the inside of the silencer by the contact with the outer peripheral surface of the silencer in the heating space. | 10-31-2013 |
20140079569 | FAN WITH SOUND-MUFFLING BOX - A fan with a sound muffling box includes a box having a box inlet port and a box outlet port located on opposite sides from each other; and a double suction centrifugal fan encased in the box. The centrifugal fan includes a motor, a discharge port, an impeller, a scroll, and a casing side plate. The casing side plate has a motor-side inlet port, and an opposite-motor-side inlet port opposite to the motor-side inlet port with respect to the impeller. The discharge port is inclined with respect to the box outlet port. The fan with the sound muffling box further includes a sound insulating board disposed on the box inlet port in such a manner as to hide the opposite-motor-side inlet port and also to divide the box inlet port into plural regions when the inside of the box is viewed from the box inlet port. | 03-20-2014 |
20140105762 | Suction Muffler For Compressor - To prevent oil from being drawn into a suction muffler of a compressor, a suction muffler | 04-17-2014 |
20140112804 | DISCRETE HEAT-INSULATED EXHAUST MUFFLER DEVICE AND REFRIGERATION COMPRESSOR USING SAME - A discrete, heat-insulating exhaust muffler device ( | 04-24-2014 |
20140119957 | ELECTRIC VACUUM PUMP - An electric vacuum pump includes: a motor part and a pump part placed in a case, and a cover member closing the case from a pump part side. The cover member includes: a suction port for sucking a fluid from pump outside into the pump part; a silencer part including a space part communicating with a discharge outlet of the pump part; and a discharge port for discharging a fluid ejected from the pump part to pump outside. The suction port has an end portion placed in sealingly contact with the pump part to hermetically communicate with a suction inlet of the pump part. The discharge port is formed with a throat part. | 05-01-2014 |
20140127047 | Pulsation Attenuation - A pump efficiency improvement device. The pump efficiency improvement device includes first and second junctions having a main connector, a first branch connector, and a second branch connector; and first and second branches extending between the first and second junctions. A header has a first end coupled to the pump and a second end coupled to the main connector of the first junction, the header having a length that improves performance at the pump. | 05-08-2014 |
20140134009 | TUNABLE VIBRATION AND ACOUSTIC NOISE SUPPRESSION IN AN AIR-MOVER ASSEMBLY - A mounting assembly comprising a rigid connector structure configured to attach an air-regulating plate of an air-mover unit to an enclosure of the air-mover unit, wherein the air-regulating plate is in an air-flow pathway of air-moving elements of the air-mover unit. The assembly also comprises a flexible connector structure, wherein at least part of the flexible connector structure is held in-between a plate-mounting portion of the air-regulating plate and an enclosure-mounting portion of the enclosure by the rigid connector structure. | 05-15-2014 |
20140147300 | ROCKING PISTON COMPRESSOR WITH SOUND DISSIPATION - Dual cylinder and single cylinder rocking piston compressors with sound attenuation are disclosed. Due to the tapered shape intake and exhaust chamber sides and tops, the gas flow is accelerated and decelerated through the compressors thereby allowing sound energy to be dissipated. Sound attenuation is further enhanced by the addition of baffles, which divide each chamber into a series of smaller attenuation chambers. The baffles also cause the gas flow to accelerate and decelerate as the gas flow passes the baffles. In the case of a dual cylinder rocking piston compressor, enlarging the crossover passageway diameters also creates additional sound attenuation chambers, which contribute to the overall reduction in sound. Further, by using dedicated seals for each intake in exhaust chamber, flow leakage at higher pressures is decreased, thereby improving compressor efficiencies. | 05-29-2014 |
20140154107 | Apparatuses, Systems, and Methods for Improved Performance of a Pressurized System - A natural gas pumping system that includes a reciprocating compressor having at least two cylinders, a first conduit in fluid communication with an outlet of the first cylinder, a second conduit in fluid communication with an outlet of the second cylinder, and a junction in fluid communication with the first conduit and the second conduit. | 06-05-2014 |
20140161640 | PUMP - A pump includes a pump chamber in which a rotor with gates is supported so that it can rotate, an electric motor for driving the rotor, a muffler that encloses a volume in the area of the pump chamber, wherein the volume is in active connection with an outlet port and a front muffler that is arranged within the muffler. To improve the service life and reliability of the pump in a vehicle with minimal installation expense, it is proposed that a filter is integrated into the front muffler. | 06-12-2014 |
20140169992 | PUMP - A pump includes a pump chamber in which a rotor with gates is supported so that it can rotate, an electric motor for driving the rotor, an outlet, and an inlet port that is fastened to a mounting plate and is in active connection with an inlet channel. The pump should be improved so that its service life and reliability are improved with minimal installation complexity in a vehicle, wherein intense cleaning of lines and devices connected on the suction side can be eliminated. This is achieved in that a filter is arranged in the area of the inlet channel between the mounting plate and the pump chamber. | 06-19-2014 |
20140199188 | Diaphragm Pump With Muffler-Mounted Sensor - Illustrative embodiments of diaphragm pumps including a muffler-mounted sensor are disclosed. In one illustrative embodiment, a diaphragm pump includes a shaft coupled to at least one diaphragm, an exhaust chamber configured to receive a motive fluid that has driven reciprocation of the at least one diaphragm and the shaft, a muffler disposed at least partially within the exhaust chamber, the muffler having a sensor mounting chamber defined therein, and a proximity sensor disposed in the sensor mounting chamber, a sensing end of the proximity sensor being flush with an end of the sensor mounting chamber nearest the shaft. | 07-17-2014 |
20140234133 | SEALED COMPRESSOR - A sealed compressor of the present invention comprises an electric component ( | 08-21-2014 |
20140322040 | MUFFLER FOR COMPRESSOR AND COMPRESSOR HAVING THE SAME - A muffler for a compressor and a compressor having the same are provided in which a suction noise device and a discharge noise device may integrally formed to reduce the number of components of a suction side muffler and a discharge side muffler so as to reduce leakage of refrigerant generated at an assembled portion of the muffler, and to reduce the length of a suction passage and a discharge passage. Such a division between the suction noise device and the discharge noise device may prevent discharged refrigerant from unintentionally heating suctioned refrigerant, which may reduce suction loss. The formation of the suction noise device and the discharge noise device using a plastic material may reduce fabricating costs, and the structures of the suction side noise space and the discharge side noise space may be simplified and noise removal effects may be improved, reducing an overall size of the muffler and improving noise effects. | 10-30-2014 |
20150023811 | COMPRESSOR - A compressor includes a compression mechanism drawing in, compressing and discharging fluid and a housing accommodating therein the compression mechanism. The housing has therein a discharge chamber into which the fluid compressed by the compression mechanism is discharged. A silencing and cooling device is provided in the discharge chamber to cool the fluid discharged in the discharge chamber and reduce pressure fluctuation. A dispersion wall is provided in the discharge chamber on downstream side of the discharge chamber that is opposite from an inflow port with respect to flowing direction of the discharged fluid. The dispersion wall is disposed to cover a part of the silencing and cooling device and cover at least a part of the inflow port. | 01-22-2015 |
20150023812 | VARIABLE DISPLACEMENT COMPRESSOR WITH SINGLE-HEAD PISTONS - The muffler has a muffler chamber formed in a rear housing, an inlet channel that provides communication between the discharge chamber and the muffler chamber, and an outlet channel that provides communication between the muffler chamber and the outlet port. The muffler chamber has a first end surface positioned on one end side of the muffler chamber, a second end surface positioned on the other end side of the muffler chamber, and an inner peripheral surface having a cylindrical shape that is positioned between the first end surface and the second end surface and extends from the discharge chamber toward the other end side. The muffler chamber is positioned between an annular wall and an outer peripheral wall. The inlet channel opens in the first end surface. The outlet channel opens in the inner peripheral surface at a position spaced apart from the second end surface. | 01-22-2015 |
20150030473 | Compressor Intake Muffler And Filter - A compressor assembly having a high velocity muffler system which produces a particle-free compressor pump feed while reducing noise output from the compressor assembly during compressing operations. The high velocity muffler system is maintenance-free and comprises an inertia filter. The compressor assembly uses a method for producing a compressor pump feed and reducing noise during compressing operations by processing a gas through the high velocity muffler system which has an inertia filter and a muffler chamber to produce a compressor pump feed which can be compressed by a pump assembly. | 01-29-2015 |
20150316050 | COMPRESSOR SHROUD HAVING INTEGRAL MUFFLER AND INERTIAL FILTER - A pneumatic compressor is provided and includes a cylinder head having a first muffler cavity for drawing an intake air. Also included in the compressor is a compressor shroud including an inertial filter having a filter slot, and an integral muffler, wherein the inertial filter and the integral muffler are integrally formed within the compressor shroud. | 11-05-2015 |
20150330378 | SUCTION MUFFLER FOR A LINEAR MOTOR COMPRESSOR AND A LINEAR MOTOR COMPRESSOR - The compressor comprises a movable assembly carrying a suction muffler and formed by: a piston ( | 11-19-2015 |
20150330380 | TANK DAMPENING DEVICE - A compressor assembly having a compressed gas tank having a tank dampening device in the form of a vibration absorption member. The vibration absorption member can provide a pressure to a portion of the compressed gas tank. A method of controlling sound emitted from a compressor assembly, by using a vibration absorber which exerts a force upon the compressed gas tank. A means for controlling the sound level of a compressed gas tank by using a means for absorbing vibration from the compressed gas tank which exerts a pressure on a portion of the compressed gas tank. | 11-19-2015 |
20160025087 | VALVE FOR A DIAPHRAGM PUMP - A diaphragm pump ( | 01-28-2016 |
20160131123 | RECIPROCATING COMPRESSOR - A reciprocating compressor including a shell, a suction pipe, a driver located at the inner portion of the shell to generate a rotary force, a compressor located in the shell and a muffler assembly is provided. The compressor includes a connecting rod configured to convert the rotary force to a linear driving force, a piston connected to the connecting rod and a cylinder into which the piston is movably inserted is provided. The muffler assembly is configured to transfer a refrigerant suctioned through the suction pipe to the cylinder and includes a suction muffler having an inner portion and a suction hole through which a refrigerant is suctioned, an inner pipe installed at the inner portion of the suction muffler, the inner pipe having a bent portion, the inner pipe providing communication between the suction hole and the cylinder and a coupler disposed at the bent portion. | 05-12-2016 |
20160131124 | RECIPROCATING COMPRESSOR - A reciprocating compressor according to an aspect includes a driving unit; a connecting rod; a piston; a cylinder; and a valve assembly, wherein the valve assembly includes a valve plate forming a main body, a suction inlet and a discharge outlet disposed at the valve plate and coming in communication with a compression space of the cylinder to guide a refrigerant flow, a suction valve and a discharge valve disposed at the valve plate and selectively opening the suction inlet and the discharge outlet, and a plurality of coupling portions disposed at the valve plate, and a plurality of corresponding coupling portions disposed to correspond to each of the plurality of coupling portions and preventing the valve assembly from being erroneously assembled are disposed at the cylinder. | 05-12-2016 |
20160131125 | RECIPROCATING COMPRESSOR AND METHOD FOR ASSEMBLING THE SAME - The present disclosure relates to a reciprocating compressor and a method for assembling the same. According to an embodiment of the present disclosure, a reciprocating compressor includes: a shell to which a discharge pipe is coupled; a driving unit mounted inside the shell to generate a rotary force; a compression unit having a connecting rod configured to convert the rotary force to a straight driving force, a piston connected to the connecting rod, and a cylinder into which the piston is movably inserted; a discharge hose from which a refrigerant compressed in the cylinder is discharged, and disposed to abut an inner circumferential surface of the shell; and a connection member configured to connect the discharge hose to the discharge pipe, wherein at least a portion of the connection member is inserted into an inner portion of the discharge pipe, and another portion thereof is supported outside the discharge pipe. | 05-12-2016 |
20190145394 | DEVICE FOR ELIMINATION OF NOISE PROPAGATION | 05-16-2019 |
20220136492 | LINEAR COMPRESSOR AND REFRIGERATOR INCLUDING SAME - The present disclosure relates to a linear compressor and a refrigerator including the same. A linear compressor according to the spirit of the present disclosure includes a shell, a cylinder, a piston and a muffler. And the muffler includes a plurality of flow tubes extending in a flow direction of the refrigerant, and a plurality of through-holes passing through at least one of the plurality of flow tubes. | 05-05-2022 |