Class / Patent application number | Description | Number of patent applications / Date published |
123184570 | Resonator chamber | 27 |
20080202462 | Switching Resonance Intake System for an Internal Combustion Engine - A switching resonance intake system is provided an internal combustion engine with a first and a second cylinder bank. The cylinder banks are each coordinated with a resonance container with a group of swing pipes leading to the cylinders, and the resonance containers are joined together by resonance pipes provided with switching valves. In the intake system, the swing pipes coordinated with the one cylinder bank are connected to the resonance container adjacent to the other cylinder bank. The intake system is intended for use in an internal combustion engine with cylinder banks having a V-layout. | 08-28-2008 |
20080236534 | Resonator - A resonator for an air intake system of a motor vehicle has a housing and at least one resonator chamber enclosed by the housing. At least one air intake opening for fresh air is provided in the housing and opens into the resonator chamber. At least one air exhaust opening for fresh air is provided in the housing and opens into the resonator chamber. The at least one air exhaust opening is also an intake opening of an auxiliary device, especially an air compressor. | 10-02-2008 |
20080308061 | RESONATOR - A resonator is provided with a neck portion and a resonator main body. The resonator main body includes a main volume chamber communicated with an air intake duct of an internal combustion engine for a vehicle via the neck portion, and at least one sub-volume chamber directly connected to the main volume chamber. The resonator main body is configured to have both a Helmholtz-resonator functional part whose resonance frequency is determined based on a total volumetric capacity of the resonator main body, substantially corresponding to a summed value of a volume of the main volume chamber and a volume of the sub-volume chamber, and a side-branch-resonator functional part whose resonance frequency is determined based on a longitudinal length of the sub-volume chamber. | 12-18-2008 |
20090000587 | SOUND QUALITY CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A sound quality control apparatus includes an air intake duct defining a suction passage, through which air is supplied to an engine, and having a double tube part, and an air cleaner that filters the air flowing through the suction passage. The double tube part includes an outer pipe and an inner pipe disposed in the outer pipe. The inner pipe defines a communicating passage communicating with the suction passage. The outer pipe and the inner pipe define a resonant chamber therebetween. The outer pipe has a branch opening part that opens in a vehicle interior of an automobile, or a branch opening part that opens toward a vicinity of the vehicle interior of the automobile. The inner pipe has a thin film partition wall that divides the resonant chamber airtightly from the communicating passage. | 01-01-2009 |
20090000588 | TORQUE INCREASE RESONATOR - A torque increase resonator for facilitating delivery of intake air to a combustion chamber of an engine by resonating with intake air pulsation generated by the delivery of intake air to the combustion chamber includes a chamber wall. The chamber wall projects in a surge tank of an intake manifold to define a resonance chamber. The resonance chamber is prevented from communicating with intake air. The chamber wall includes a resonating member, which is a thin film and resonates with the intake air pulsation. The chamber wall is integrally formed. | 01-01-2009 |
20090031981 | Intake system - An intake system supplies intake air to a combustion chamber of an engine. The system includes a thin film part and a wall portion. The thin film part divides a surge tank from a resonance chamber and is configured to promote the supply of intake air to the combustion chamber by resonating with a suction pulse, which is generated as a result of the supply of intake air to the combustion chamber. The wall portion is different from the thin film part and has an opening, through which the surge tank communicates with the resonance chamber. | 02-05-2009 |
20090071432 | Intake System - An intake system for an internal combustion engine has an intake conduit of thermoplastic material provided with an intake socket having an annular collar. At least one acoustic element is concentrically connected to the intake socket of the intake conduit, wherein the acoustic element is insertable into the annular collar. A closure surrounds the annular collar wherein the closure is a metal clamp having a metal strap and a metal clip. The metal clip effects a releasable clamping action with a variable diameter of the metal clamp. | 03-19-2009 |
20090194056 | INTAKE SYSTEM WITH RESONATOR - An engine assembly may include an engine block, first and second cylinder heads, and a first and second intake manifolds. The engine block may include a first bank defining a first set of cylinders and a second bank defining a second set of cylinders. The first cylinder head may be fixed to the first bank and the second cylinder head may be fixed to the second bank. The first intake manifold may be fixed to the first cylinder head and may include a first acoustic tuning mechanism in communication with the first intake manifold. The second intake manifold may be fixed to the second cylinder head and may include a second acoustic tuning mechanism in communication with the second intake manifold. | 08-06-2009 |
20090199808 | INTAKE MANIFOLD - An intake manifold includes a surge tank, a connection pipe and a membrane-type resonator. The surge tank distributes an intake air supplied through a throttle device into a combustion chamber of an engine. The connection pipe is disposed at an upstream side of the surge tank so as to be connected to the throttle device. The membrane-type resonator has a membrane for defining a chamber separated from the surge tank, and the membrane vibrates to be resonant with the intake air. The connection pipe and the chamber of the membrane-type resonator communicate with each other. | 08-13-2009 |
20100065005 | AIR INLET SYSTEM FOR INTERNAL COMBUSTION ENGINE - An air inlet system for an internal combustion engine includes an air inlet duct for drawing charge air into a charge air processor, and an intake manifold system leading from the charge air processor to the power cylinders of the engine. A resonator which suppresses pressure pulses within the inlet duct is mounted to the intake manifold system, but fluidically connected to the air inlet duct, and not to the intake manifold system. | 03-18-2010 |
20100089356 | NOISE ATTENUATION FOR INTERNAL COMBUSTION ENGINE - A component, such as an intake manifold or a throttle body, has an air passage. A structure may extend into the air passage so that the structure intersects a part of a total air-flow passing through the air passage. The structure may have a first through-hole and a second through-hole. Each of the through-holes define a cross-sectional area that may tapers in a direction of air-flow that is passing through the air passage so that a cross-sectional area of an entrance of the respective through-hole is greater than a cross-sectional area of an exit of the respective through-hole. The structure helps attenuate acoustic noise that may occur in the component due to the air-flow. | 04-15-2010 |
20100089357 | NOISE ATTENUATION FOR INTERNAL COMBUSTION ENGINE - A component, such as an intake manifold or a throttle body, has an air passage. A structure may extend into the air passage so that the structure intersects a part of a total air-flow passing through the air passage. The structure may have a first through-hole and a second through-hole. Each of the through-holes define a cross-sectional area that may taper in a direction of air-flow that is passing through the air passage so that a cross-sectional area of an entrance of the respective through-hole is greater than a cross-sectional area of an exit of the respective through-hole. The structure helps attenuate acoustic noise that may occur in the component due to the air-flow. | 04-15-2010 |
20100147246 | OUTBOARD MOTOR - An outboard motor S has an upstream intake silencer with an upstream expansion chamber, and a downstream intake silencer disposed under the upstream intake silencer. The upstream expansion chamber has a lower wall of a stepped shape including a raised part overlapping the downstream intake silencer in a plane and a lowered part without overlapping with the downstream intake silencer in a plane and at a level lower than that of the raised part. An upstream outlet passage of the upstream intake silencer is formed in the raised part. The downstream intake silencer has a stepped upper wall having a raised part, and a lowered part underlying the lower wall of the upstream expansion chamber in a plane and extending at a level lower than that of the raised part. A downstream inlet passage of the downstream intake silencer is formed in the lowered part of the upper wall. The respective stepped shapes complementary to each other of the lower wall of the upstream intake silencer and the upper wall of the downstream intake silencer are utilized for enhancing the intake noise reducing effect of the intake silencers and for forming the outboard motor in reduced vertical size by compactly stacking up the intake silencers. | 06-17-2010 |
20100170464 | CLEAN AIR DUCT NOISE SILENCING - An air intake system for reducing air induction noise, which includes an air duct housing that has a lower shell and an upper shell, each having a first end and a second end and a plurality of tuning holes formed therein. The air intake system further includes an air duct that is connected to the air duct housing and includes a circumferential wall having an interior surface and an exterior surface. The circumferential wall defines an aperture between a first end and a second end. A venturi is formed between the first and second ends and restricts the amount of sound passing from the first end to the second end of the air duct. The circumferential wall has a predetermined thickness that enables sound to pass through the circumferential wall and into the air duct housing. | 07-08-2010 |
20110132313 | INTAKE SOUND GENERATOR - An intake sound generating apparatus may include a tuning cap having a pressing force adjusting member, an upper cap having a predetermined length and detachably coupled to the tuning cap, a lower cap disposed under the upper cap and detachably coupled to the upper cap, and a membrane that is interposed and supported between the lower cap and the upper cap and pressed by the pressing force adjusting member of the tuning cap to generate sound while being vibrated by pulse pressure of air supplied to the lower cap. | 06-09-2011 |
20110253090 | AIR PURIFIER HAVING RESONATOR INSTALLED IN THE AIR OUTLET - An intake system is provided for an internal combustion engine, which includes, but is not limited to an air purifier/resonator configuration, in which a resonator element is situated in the purified air area of the intake system as an integral component in the air outlet of the air purifier, coaxially to the air outlet. | 10-20-2011 |
20120085308 | Intake tract of a combustion air of a vehicle - An intake tract is provided for combustion air of a vehicle. The intake tract includes, but is not limited to an intake opening and an intake channel. At the end of the intake channel a sound source is arranged, which is sound-dampened by a sound damping device in the intake channel. An air filter is arranged between part regions of the intake channel and downstream of the air filter an air mass sensor is provided in an intake channel section, wherein the intake channel section of the air mass sensor includes, but is not limited to the sound damping device. | 04-12-2012 |
20120222643 | SWIRL GUIDING ACOUSTIC DEVICE WITH AN INTERNAL COAXIALLY INTEGRATED SWIRL GUIDE STRUCTURE - A coaxially integrated swirl guiding acoustic device has an elongated annular housing with radially spaced outer and inner walls. At least one acoustic resonator chamber is enclosed between the outer and inner walls. A swirl guiding structure is coaxially arranged within an open interior of the housing and secured to the inner wall of the housing, the structure having at least one swirl guiding element configured to modify swirl characteristics of air flowing through the device. | 09-06-2012 |
20130008402 | SOUND TRANSMISSION SYSTEM - A sound transmission system of a motor vehicle, having an intake sound transmission device which can be coupled via a first tubular connecting element to an air intake manifold which leads to an internal combustion engine and via a second tubular connecting element to a vehicle interior, the first tubular connecting element being assigned a first switchable shut-off device, having a resonator device which interacts with the intake sound transmission device and can be coupled via a third tubular connecting element to the air intake manifold which leads to an internal combustion engine, the third tubular connecting element being assigned a second switchable shut-off device. | 01-10-2013 |
20130118434 | CHAMBER AIR CLEANER AND AN INTAKE APPARATUS FOR ENGINE INCLUDING THE SAME - A chamber air cleaner apparatus may include a chamber housing mounted through a connector onto an air hose wherein the air hose may be connected to a main air cleaner, an intake duct attached to an outer surface of the chamber housing wherein exterior air may be introduced into the chamber housing through the intake duct, a variable valve pivotally installed in the vicinity of the intake duct and selectively opening according to an air suction pressure applied thereto, and a filter element mounted between the intake duct and the connector within the chamber housing to purify the introduced air through the intake duct. | 05-16-2013 |
20130263811 | AIR INTAKE APPARATUS FOR INTERNAL COMBUSTION ENGINE - A resonator has a volume chamber, which is communicated with a surge tank through a communication passage. A primary intake passage communicates between a cylinder of an internal combustion engine and the surge tank. A secondary intake passage communicates between the surge tank and one of the cylinder and the primary intake passage. A passage length of the secondary intake passage is shorter than a passage length of the primary intake passage. A variable intake valve is fixed to a shaft. The variable intake valve opens and closes the secondary intake passage. A resonator valve is fixed to the shaft. The resonator valve opens and closes the communication passage. A drive device rotates the shaft to drive the variable intake valve and the resonator valve. | 10-10-2013 |
20140041615 | AIR CLEANER DEVICE FOR INTERNAL COMBUSTION ENGINE - A bottom inner wall of an air cleaner case is provided with a first and second bulging parts and roughly U-shaped in section which have projected surfaces on the inside of the air cleaner case and recessed surfaces on the outside of the air cleaner case. First and second resonators are formed by a structure wherein first and second compartments continuously surrounded by the first and second bulging parts as well as a pair of side inner walls, the bottom inner wall and a partition wall of the air cleaner case are closed with first and second lids provided with communication holes. | 02-13-2014 |
20140165950 | ACTIVE CONTROL SOUND GENERATOR - An active control sound generator apparatus may include a housing disposed at an end of an intake duct in a vehicle, having an intake port at an end, and having a driving unit case thereon, a control actuator disposed at a side in the driving unit case, a valve plate disposed in the intake port and connected to a rotary shaft, wherein the valve plate selectively opens or closes the intake port, a control unit including a position sensing wheel disposed at an end of the rotary shaft of the valve plate, in the driving unit case to measure a rotation amount of the valve plate, and a driving gear assembly engaged with the valve plate and the rotary shaft, in the driving unit case, and reducing and transmitting torque of the control actuator to the rotary shaft. | 06-19-2014 |
20140190439 | INTAKE APPARATUS - An intake apparatus includes an intake pipe, a resonator and a blowby gas recirculation pipe. The resonator includes a volume portion having a volume chamber therein and a connecting pipe connecting the volume portion and the intake pipe and having a connecting passage connecting the volume chambera and the intake passage. The blowby gas recirculation pipe includes an internal passage therein. The blowby gas recirculation pipe is connected to an axially midway portion of the connecting pipe, and an exit of the internal passage is connected to the connecting passage of the connecting pipe. | 07-10-2014 |
20150096520 | VEHICULAR AIR INTAKE APPARATUS - A Helmholtz resonator communicates with an interior of an intake passage, which is configured to draw intake air to a combustion chamber of an engine. The Helmholtz resonator has a volume chamber and a communication pipe. The volume chamber forms a resonance chamber. The communication pipe communicates the volume chamber with the intake passage. The communication pipe includes an acoustic stack, which is configured to cause a temperature gradient by utilizing an acoustic energy. | 04-09-2015 |
20160108870 | INTAKE SYSTEM OF ENGINE - An intake system of an engine includes an engine and an intake manifold. The intake manifold defines individual intake air passageways each connecting one of cylinders to a volume chamber. Each of the individual intake passageways includes a first route and a second route. The first route has a natural frequency, of an air column, synchronized with a first revolution higher than an engine revolution for maximum torque such that a dynamic supercharging effect is obtained at the first revolution. The second route has a natural frequency, of an air column, synchronized with a second revolution higher than the engine revolution for maximum torque such that a dynamic supercharging effect is obtained at the second revolution. The second revolution differs from the first revolution. A difference between the first and second revolutions is set lower than or equal to 15% of a maximum engine revolution. | 04-21-2016 |
20160160818 | AIR INDUCTION SYSTEM HAVING AN ACOUSTIC RESONATOR - An air induction system for attenuating sound produced by an engine, a housing defining a working chamber for attenuating sound produced by the engine. The air induction system further includes a tube having a first end extending into the working chamber and a second end to be in fluid communication with the engine. The air induction system further includes a first flange radially extending from the tube and disposed in the working chamber. The tube, the housing and the first flange cooperate to define a resonator operable to attenuate sound produced by the engine. | 06-09-2016 |