| Danfoss A/S Patent applications |
| Patent application number | Title | Published |
|---|
| 20120125583 | HEAT EXCHANGER - The invention relates to a plate heat exchanger ( | 05-24-2012 |
| 20120125578 | HEAT EXCHANGER - The invention relates to a plate heat exchanger ( | 05-24-2012 |
| 20120068097 | METHOD FOR OPERATING A VALVE - A method for operating a valve comprising a first valve part (1) having at least one opening (2, 5) formed therein and a second valve part (3) having at least one opening (4, 6) formed therein is disclosed. The first (1) and second (3) valve parts are adapted to perform relative movements, the relative position of the opening(s) (2, 5) of the first valve part (1) and the opening(s) (4, 6) of the second valve part (3) defining an opening degree of the valve by means of an overlapping area of an opening (2, 5) of the first valve part (1) and an opening (4, 6) of the second valve part (3). The method comprises the step of moving the first valve part (1) and/or the second valve part (3) from a position defining a maximum opening degree of the valve towards a position defining a minimum opening degree of the valve in such a manner that the velocity of the relative movement between the first valve part (1) and the second valve part (3) varies as a function of an overlapping area between an opening (2, 5) of the first valve part (1) and an opening (4, 6) of the second valve part (3), in such a manner that the velocity is decreased as the overlapping area decreases. Operating the valve in this manner causes water hammering to be reduced, while ensuring appropriate operation and acceptable response times of the valve. | 03-22-2012 |
| 20120061136 | CONTROL BOX ARRANGEMENT WITH A MOUNTING ELEMENT - The invention concerns a control box arrangement ( | 03-15-2012 |
| 20120060542 | VALVE FOR A VAPOUR COMPRESSION SYSTEM - A valve comprising an inlet opening adapted to receive fluid medium and at least two outlet openings, each being fluidly connected to a flow path being arranged fluidly in parallel, is disclosed. The valve comprises a first valve part ( | 03-15-2012 |
| 20120039362 | TEMPERATURE SENSOR UNIT AND A METHOD FOR MAKING THE SAME - A method of manufacturing a temperature sensor unit comprising the steps of: providing the conductors in the sheath such that in a first zone a space is defined between the sheath and the conductors; providing the second insulating material in liquid form in the space; positioning the sensors in the space such that the conductors are provided closer to the centre of the sheath than the sensors; and soldering and/or welding the set of conductors to the set of terminals. A temperature sensor in which sets of conductors and one or more temperature sensors are arranged inside a sheath and with respect to each other such that the conductors are provided closer to the centre of the sheath than the temperature sensors. | 02-16-2012 |
| 20110313588 | POWER SAVING SYSTEM AND METHOD - The present invention relates to a method and a system to reduce losses of energy due to ripples, especially at the power grid, the ripples being short term power shortages or excess power. The method is based on the idea of shutting off energy consuming devices during a period of power shortage, if their operation is not necessary, and optionally to turn on such energy consuming devices during periods of excess power, if energy may be stored in them, especially when energy may be stored as some physical parameter or variable, being a part of the operation of the energy consuming devices, such as the temperature of a freezer. | 12-22-2011 |
| 20110309277 | VALVE WITH A SOLENOID FIXED TO A PLUNGER TUBE BY A YOKE - The invention provides a valve comprising a tube for guiding movement of a plunger, a solenoid which can be arranged about the tube, and a yoke which can be positioned in an operational position relative to the tube and relative to the solenoid so that it provides a magnetic path between the solenoid and portions of the tube. The yoke engages the tube and thereby prevents removal of the solenoid from tube. The invention thereby provides a very simple valve design with a low amount of components. The invention further provides a method of making a valve including fixing a solenoid to a tube by use of a yoke which engages the tube. | 12-22-2011 |
| 20110308621 | SERVO VALVE - The invention provides a servo valve with a main piston and a servo piston. The servo piston controls a pressure in a servo chamber and thereby controls movement of the main piston based on a pressure difference between two chambers of the valve. To facilitate opening of the valve by relatively small pressures even in high pressure systems, the servo chamber according to the invention is provided inside the armature. | 12-22-2011 |
| 20110308274 | AN EXPANSION VALVE COMPRISING A DIAPHRAGM AND AT LEAST TWO OUTLET OPENINGS - An expansion valve ( | 12-22-2011 |
| 20110289948 | METHOD OF ANALYSING A REFRIGERATION SYSTEM AND A METHOD OF CONTROLLING A REFRIGERATION SYSTEM - A method of analysing a refrigeration system ( | 12-01-2011 |
| 20110247359 | EXPANSION VALVE WITH FORCE EQUALIZATION - An expansion valve ( | 10-13-2011 |
| 20110222576 | METHOD FOR CALIBRATING A SUPERHEAT SENSOR - A method for calibrating a superheat sensor ( | 09-15-2011 |
| 20110214438 | METHOD FOR CONTROLLING A FLOW OF REFRIGERANT TO AN EVAPORATOR - A method for controlling a flow of refrigerant to an evaporator ( | 09-08-2011 |
| 20110203987 | REVERSE OSMOSIS SYSTEM - The invention concerns a reverse osmosis system ( | 08-25-2011 |
| 20110192224 | SUPERHEAT SENSOR - A superheat sensor ( | 08-11-2011 |
| 20110186344 | CONTROL CABINET ARRANGEMENT - The invention concerns a control cabinet arrangement ( | 08-04-2011 |
| 20110162200 | ELASTOMER ACTUATOR AND A METHOD OF MAKING AN ACTUATOR - A tubular elastomer actuator with a shape in a cross-sectional view which shape exposes at most one single axis of symmetry of a specific length, e.g., an oval shape. The actuator could be made from a sheet made from a plurality of plate shaped elements which are laminated together and rolled. Each plate shaped element may have a corrugation that gives the element an anisotropic structure, and contains an electrode on only one surface. The actuator displacement is the result of shrinkage displacement of the plate shaped elements upon the application of electrical field across their thickness. | 07-07-2011 |
| 20110135507 | HYDRAULIC PISTON MACHINE, IN PARTICULAR WATER HYDRAULIC MACHINE - The invention concerns a hydraulic piston machine, in particular a water hydraulic machine, with at least one cylinder, in which a piston ( | 06-09-2011 |
| 20110123724 | DIELECTRIC COMPOSITE AND A METHOD OF MANUFACTURING A DIELECTRIC COMPOSITE - A composite for a transducer facilitates an increased actuation force as compared to similar prior art composites for transducers. The composite facilitates increased compliance of the transducer in one direction, an improved reaction time as compared to similar prior art composites for transducers, and provides an increased lifetime of the transducer in which it is applied. | 05-26-2011 |
| 20110088882 | DOUBLE PLATE HEAT EXCHANGER - A plate heat exchanger ( | 04-21-2011 |
| 20110084223 | VALVE ACTUATOR - The present invention relates to a valve actuator comprising a support member for supporting a rotatable positioning element operatively connected to a valve rod. The valve actuator further comprises a track follower adapted to follow at least part of a track provided in the positioning element. The track follower is biased against at least part of the track by a resilient member. The rotatable positioning element comprises a curved outer portion arranged in an associated bearing formed in the support member. | 04-14-2011 |
| 20110000555 | VALVE ARRANGEMENT - The invention concerns a valve arrangement ( | 01-06-2011 |
| 20100327202 | ELECTROMAGNETIC ACTUATOR AND VALVE - The invention concerns an electromagnetic actuator ( | 12-30-2010 |
| 20100320278 | EXPANSION VALVE - A thermal expansion valve for a refrigeration system comprises a working element with a diaphragm clamped between a cover plate and a cover ring. The diaphragm is a multiple-diaphragm comprising two or more individual diaphragms. This makes the multiple-diaphragm more flexible than a single diaphragms and increases the lifetime of the diaphragm. The individual diaphragms are separated by an anti-friction layer to protect against tear, the anti-friction layer can be grease or oil placed between the individual diaphragms or it can be a layer of coating on the diaphragms. | 12-23-2010 |
| 20100307190 | REFRIGERATION SYSTEM - The invention relates to a refrigeration system comprising a refrigerant circuit provided with a plurality of evaporator paths and a distributor ( | 12-09-2010 |
| 20100293990 | MODULAR VALVE - The invention provides a valve comprising a house and a drum rotatable in the house. The house comprises a plurality of substantial identical tubular mid-section house members, a bottom house member, and a top house member. When connecting the house members to each other, a continuous outer wall surrounding a house cavity, a port, and a plurality of nozzles being in fluid communication with the house cavity is provided. The drum comprises a plurality of substantial identical tubular mid-section drum members, a bottom drum member, and a top drum member. When connecting the drum members to each other, an inner wall having an outer surface being adapted for rotation in contact with a corresponding inner surface of the outer wall, the inner wall comprising a plurality of conduits is provided. During rotation of the drum, the conduits can be brought into and out off fluid communication with the nozzles in order to provide passages between the port and the nozzles. Furthermore, the invention provides a set of members to form a valve, and a system for thermal exchange. | 11-25-2010 |
| 20100293978 | EXPANSION VALVE WITH A DISTRIBUTOR - An expansion valve ( | 11-25-2010 |
| 20100288952 | ACTUATOR FOR A VALVE - The invention provides an electromagnetic actuator for moving a closure member of a valve. The actuator contains a solenoid, a yoke and a wire spring for fixing a guide tube, in which the closure member is movable, to the solenoid. The spring is formed so that it further fixes the yoke to the solenoid. Accordingly, the number of components is reduced, and detaching of the yoke may easily be facilitated. | 11-18-2010 |
| 20100281913 | REFRIGERATION SYSTEM - The invention relates to a refrigeration system having a refrigerant circuit which comprises a plurality of evaporator paths and a distributor distributing refrigerant, wherein the distributor comprises a housing and a controllable valve for each evaporator path. The intent is to achieve a predetermined mode of operation of the refrigeration system by simple means. To this end, it is provided that the distributor comprises a magnet arrangement controlling the valves. | 11-11-2010 |
| 20100269687 | HYDRAULIC AXIAL PISTON MACHINE - The invention concerns a hydraulic axial piston machine with a housing, in which a cylinder drum having at least one cylinder is arranged to be rotatable around an axis, in which cylinder is located a piston that is supported on a swashplate, whose inclination angle is adjustable in an adjustment plane. It is endeavoured to keep the cost of manufacturing individual parts of the axial piston machine small. For this purpose it is provided that on the side facing away from the cylinder drum ( | 10-28-2010 |
| 20100269527 | METHOD FOR CONTROLLING A VAPOUR COMPRESSION SYSTEM - A method for controlling a vapour compression system, such as a refrigeration system, preferably an air condition system, comprising at least two evaporators. While monitoring a superheat (SH) at a common outlet for the evaporators, the amount of available refrigerant is controlled in response to the SH and in order to obtain an optimum SH value. The available refrigerant is distributed among the evaporators in accordance with a distribution key. The distribution key is preferably obtained while taking individual consideration to operating conditions for each of the evaporators into account. Thereby the vapour compression system can be operated in such a way that each of the evaporators is operated in an optimal manner, and in such a way that the system in general is operated in an optimal manner. | 10-28-2010 |
| 20100242505 | METHOD FOR CONTROLLING A REFRIGERANT DISTRIBUTION - A method for controlling a refrigerant distribution in a vapour compression system, such as a refrigeration system, e.g. an air condition system, comprising at least two evaporators. The refrigerant distribution determines the distribution of the available amount of refrigerant among the evaporators. While monitoring a superheat, SH, at a common outlet for the evaporators, the distribution of refrigerant is modified in such a manner that a mass flow of refrigerant to a first evaporator is altered in a controlled manner. The impact on the monitored SH is then observed, and this is used for deriving information relating to the behaviour of the first evaporator, in the form of a control parameter. This is repeated for each evaporator, and the refrigerant distribution is adjusted on the basis of the control parameters. The impact may be in the form of a significant change in SH. Alternatively, the control parameter may reflect a change in SH occurring as a result of the modification of the distribution of refrigerant. | 09-30-2010 |
| 20100172779 | PISTON COMPRESSOR, PARTICULARLY REFRIGERANT COMPRESSOR - The invention concerns a piston compressor, particularly a refrigerant compressor with a compression chamber in a compressor block, the compression chamber being delimited by a cylinder head ( | 07-08-2010 |
| 20100163770 | FLOW ADJUSTMENT VALVE - The invention relates to a flow adjustment valve ( | 07-01-2010 |
| 20100101809 | FIRE PROTECTION SYSTEM AND A METHOD FOR PROVIDING FIRE PROTECTION - A fire protection system and method for providing a fire protection for a cooking unit ( | 04-29-2010 |
| 20100092316 | REFRIGERANT COMPRESSOR - The invention concerns a refrigerant compressor ( | 04-15-2010 |
| 20100092313 | REFRIGERANT COMPRESSOR - The invention concerns a refrigerant compressor ( | 04-15-2010 |
| 20100055494 | METHOD FOR TREATING TITANIUM OBJECTS WITH A SURFACE LAYER OF MIXED TANTALUM AND TITANIUM OXIDES - This invention introduces a method for treating a surface of an electrically conductive object with a refractory metal. In one embodiment, the refractory metal is tantalum and the object is a titanium substrate. A surface layer of mixed tantalum and titanium oxides is created by first heating the object and tantalum chloride in a reaction chamber and subsequently heat treating the object in an oxygen containing environment. The electrically conductive object can in a non-limiting way be DSA solutions (Dimensionally Stable Anodes), fuel cells or connector plates. | 03-04-2010 |
| 20100025051 | SPRAY HEAD FOR UNIFORM FLUID DISTRIBUTION - The present invention relates to a spray head for effective fire fighting. The spray head according to the present invention provides a uniform distribution of a fluid, such as pressurised water, over a relatively large area. To achieve this the spray head comprises a body defining a centre axis and further comprising a fixation structure for fixing the spray head to a fluid supply system, a fluid inlet, a plurality of outlet nozzles arranged around the centre axis, and a flow path between the inlet and the nozzles, wherein a first set of nozzles are located at a larger radial distance from the centre axis than a second set of nozzles, and wherein the second set of nozzles are located at a larger radial distance from the centre axis than a third set of nozzles, and wherein the nozzles comprise an essentially identical expansion passage section. The present invention further relates to method for providing a uniform fluid distribution. | 02-04-2010 |
| 20100012873 | SOLENOID ACTUATED VALVE WITH A DAMPING DEVICE - The invention provides a solenoid actuated valve with a plunger which moves in a sleeve under influence of a magnetic field from the solenoid and further comprising a damping device for reducing noise and wear caused by the plunger when it bounces against a top part located in the sleeve. The damping device comprises a first part which forms the limit of the travel of the plunger and another part which is allowed to move relative to the first part in a dampened movement. To enable application in a vacuum system, the damping device comprises a conduit which allows evacuation of a chamber confined between one end of the sleeve and the damping device. The invention further provides a damper for a solenoid actuated valve. | 01-21-2010 |
| 20100000616 | FLOW ADJUSTMENT VALVE - The invention relates to a flow adjustment valve ( | 01-07-2010 |
| 20090320518 | REFRIGERANT EXCHANGE ARRANGEMENT - A refrigerant exchange arrangement is claimed with a first oil-trapping chamber ( | 12-31-2009 |
| 20090306828 | METHOD AND SYSTEM FOR CONTROLLING THE CLIMATE IN A HOUSE - The invention provides a method for controlling the climate of an environment, e.g. a house, which exchanges thermal energy with an ambient space. Energy is supplied to the environment e.g. by radiators, floor heating, electrical heating fans etc. According to the method, a numerically expressed comfort criteria, and a numerically expressed weight of importance of compliance with the comfort criterion are defined. Subsequently, a supply of a specific amount of energy is considered, and with respect to that amount, a numerical expression of a degree of compliance with the comfort criterion, and a numerical expression of costs related to the supply of that amount of energy are provided. | 12-10-2009 |
| 20090289008 | LIQUID TREATMENT APPARATUS - The invention provides a liquid treatment apparatus such as a reverse osmosis apparatus wherein a portion of an inlet liquid permeates through a filter or a membrane e.g. to provide freshwater from saltwater. The apparatus comprises a pump which provides the necessary pressure of the liquid to drive the permeation process, and a recovery unit which transfers pressure of a residue quid to the inlet liquid. The pump and the recovery unit are driven at synchronous and variable speed to control the output and thereby e.g. to adjust for fouling of the filter or membrane. The invention further provides methods of controlling the synchronous speed, e.g. based on a pressure or based on the consumption of the produced liquid. | 11-26-2009 |
| 20090259341 | CONTROL DEVICE FOR AT LEAST ONE HEATING, AIR-CONDITIONING, VENTILATION OR REFRIGERATION SYSTEM - The invention concerns a control device for at least one heating, air-conditioning, ventilation or refrigeration system with a memory for a temperature control program and a signal outlet. It is endeavoured to simplify the programming. For this purpose, the memory is arranged in an element ( | 10-15-2009 |
| 20090239039 | MULTILAYER COMPOSITE AND A METHOD OF MAKING SUCH - A multilayer composite includes at least two composites, each composite having a film and an electronically conductive layer. Several composites are laminated to provide an increased conversion between mechanical and electrical energies not only due to the multiplication of the effect of each layer, but also due to the fact that the multilayer structure itself renders the multilayer composite more rigid. In addition, the multilayer structure facilitates application of an electrical field over thinner portions of the structure, thereby requiring much less potential difference between electrodes. | 09-24-2009 |
| 20090222145 | CONTROL OF A SYSTEM WITH A LARGE THERMAL CAPACITY - The invention provides a method and a system for controlling floor heating or climate regulating systems with long time constants. According to the invention, a flow of a fluid is provided through the floor or through a similar medium with large thermal inertia. An induced heat is determined by adding up a plurality of differences between an inlet temperature of the fluid when it enters the medium and an outlet temperature of the fluid when it leaves the medium. The temperatures are sampled with a fixed sampling time and within a fixed period of time, and a corresponding change in temperature of the medium over the fixed period of time is determined. In the future, the temperature of that medium is controlled by use of a ratio between the induced heat and the change in temperature. | 09-03-2009 |
| 20090218272 | MICRO FLUIDIC SYSTEM AND A METHOD OF ATTACHING A MEMBRANE TO A TUBE - A micro fluidic system comprising at least one tube ( | 09-03-2009 |
| 20090217687 | Refrigeration System - The invention concerns a refrigeration system comprising a refrigerant circuit which comprises several evaporator paths and a distributor ( | 09-03-2009 |
| 20090211657 | BUBBLE-TOLERANT MICRO-MIXERS - A device for mixing at least one first fluid and one second fluid in a micro-flow system, comprising at least two flow restrictors, a first transfer conduit in fluid communication the first og said fluids and a recipient, at least one second transfer conduit in fluid communication with the second of said fluids, the second transfer conduit having at least two fluid outlets in fluid communication with said first transfer conduit, where each of said outlets of said second transfer conduit is downstream and in fluid communication with the outlet of one of said flow restrictors, and wherein the flow restrictors are bubble-tolerant, being formed to prevent fragmentation of bubbles entering the flow restrictor, into a bubble train consuming the pressure difference between the source and the recipient. Pumping means may be attached to the flow system, possibly being constant-pressure pumps of the kind, where elastomer bladders squeeze a fluid into the channels. | 08-27-2009 |
| 20090210102 | METHOD FOR CONTROLLING TEMPERATURE IN A REFRIGERATION SYSTEM - A method for controlling a temperature in a refrigeration system using a quality decay value expressing an expected decay rate in quality of the products being refrigerated, and which depends on the temperature of air present in the refrigeration system. The quality decay value is obtained using a mathematical model reflecting one or more physical and/or biological processes in the products. Prevents or reduces the quality degradation of the products in terms of shelf life, appearance or tastiness. Furthermore, a method for controlling the temperature in such a way that effects of scheduled events, such as temperature increase during defrosts, can be compensated prior to the event. | 08-20-2009 |
| 20090194727 | VALVE ACTUATOR ASSEMBLY - An actuator assembly for actuating a valve includes an extensible bellow having an open end and a closed end, a stem operable to contact the closed end and to actuate a stopper mechanism, and a driver configured to move the bellow. The movement of the bellow effects movement of the stem to actuate the valve. In one embodiment, the driver acts to compress the bellow, the compression causing movement of the stem to open the valve. The bellow may be hermetically sealed to the valve housing, thereby allowing a higher range of fluid pressures. | 08-06-2009 |
| 20090169829 | DIELECTRIC COMPOSITE AND A METHOD OF MANUFACTURING A DIELECTRIC COMPOSITE - A composite for a transducer facilitates an increased actuation force as compared to similar prior art composites for transducers. In accordance with the present invention, the composite also facilitates increased compliance of the transducer in one direction and an improved reaction time as compared to similar prior art composites for transducers, as well as provides an increased lifetime of the transducer in which it is applied. | 07-02-2009 |
| 20090145502 | FLOW SYSTEM AND A MICRO FLUIDIC SYSTEM COMPRISING A FLOW SYSTEM - A flow system ( | 06-11-2009 |
| 20090126899 | METHOD AND A DEVICE FOR DETECTING AN ABNORMALITY OF A HEAT EXCHANGER, AND THE USE OF SUCH A DEVICE - A method and a device for detecting an abnormality of a heat exchanger exchanging heat between a first fluid flow flowing in a conduit and a second fluid flow flowing along a flow path, said conduit and said flow path each having an inlet and an outlet, whereby the method comprises the steps of establishing at least one parameter representative of the temperature conditions of the heat exchanger, establishing a second fluid inlet temperature, establishing a parameter indicative of expected heat exchange between the heat exchanger and the second fluid, processing the heat exchanger temperature, the second fluid temperature and the parameter indicative of expected heat exchange for establishing an estimated second fluid outlet temperature, and employing the estimated second fluid outlet temperature for evaluating the heat exchange between the first and second fluids by comparing the estimated second fluid outlet temperature, or a parameter derived therefrom, with a reference value. | 05-21-2009 |
| 20090125109 | METHOD FOR COATING AN OBJECT - A method for coating an object ( | 05-14-2009 |
| 20090088903 | CONTROL STRUCTURE FOR SETTING A SET POINT OF A TEMPERATURE OF A SPACE - The invention provides a system adapted to modify a temperature of a space based on a user selected set-point for the temperature of the space, e.g. a refrigerator, a sauna or a regular building with a HVAC system. The set-point is selected via a control structure which includes a handle being movable relative to a base. In order to simplify the installation and the structure of the space, and further to enable better thermal isolation of the space, the handle comprises a temperature sensing structure. Accordingly, no additional installation work, cabling, and penetration of the wall into the space are necessary for installing separate temperature sensing devices. | 04-02-2009 |
| 20090072658 | DIELECTRIC COMPOSITE AND A METHOD OF MANUFACTURING A DIELECTRIC COMPOSITE - A composite for a transducer facilitates an increased actuation force as compared to similar prior art composites for transducers. In accordance with the present invention, the composite also facilitates increased compliance of the transducer in one direction and an improved reaction time as compared to similar prior art composites for transducers, as well as provides an increased lifetime of the transducer in which it is applied. | 03-19-2009 |
| 20090053107 | MICROFLUID DEVICE AND METHOD FOR SETTING UP A MICROFLUID DEVICE - This invention concerns a microfluid device ( | 02-26-2009 |
| 20090050616 | HEATING AND COOLING MAT - The invention concerns a heating and cooling mat ( | 02-26-2009 |
| 20090020282 | HEAT EXCHANGER AND METHOD FOR REGULATING A HEAT EXCHANGER - A heat exchanger ( | 01-22-2009 |
| 20090001060 | Laser Welding Process - The invention provides a method of making a component from first and second parts which are joined in a welding process wherein a laser beam is transmitted in a direction from a laser source and at least partly into a gap. The gap is made between edges of the component, and to enable a faster laser welding process, the laser has a focus point size which is at least of the size of the gap. To enable better control of the width of the gap, the invention further provides a method and components wherein one part is formed with a neck which extends into a complementary socket of the other part to prepare the parts for the welding process. The invention in particular concerns welding of brass. | 01-01-2009 |
| 20080311387 | Corrosion Resistant Object Having an Outer Layer of a Ceramic Material - An object comprising an electrically conductive body part, e.g. comprising copper or silver, and a layer comprising a refractory metal, preferably tantalum. At least part of the refractory metal layer has been transformed into an electrically conductive ceramic material, preferably a tantalum boride. The refractory metal layer improves the corrosion resistant properties of the object and the ceramic material prevents oxidation of the refractory metal layer, and thereby passivation of the object during conduction of a current. The object is suitable for use as an electrode in corrosive environments. The object is cost effective because passivation can be avoided without applying a layer of precious metal. Also a method of forming the object in which the ceramic material is preferably provided by applying boride in a gaseous or solid phase and heating the object. | 12-18-2008 |
| 20080283753 | Ir Sensor, Especially a Co2 Sensor - An IR sensor ( | 11-20-2008 |
| 20080282784 | Method and a System for Detection of an Engine Fault - An improved method for detection of engine faults especially suited for use on ships. The method is in particular related to the detection of a fault in an internal combustion engine having within the housing a crankshaft connected to a piston. The method includes determination of a pressure difference between the housing and the area outside the housing. If comparison of the pressure difference with a fault indicating pressure difference limit shows that the pressure difference is greater than the fault indication pressure difference limit then the presence of the fault is indicated. According to the method is in the pressure difference determined by comparing the pressure existing in the housing with the pressure of the area outside the housing, while attenuating pressure changes of the area outside the housing, so that pressure changes having a duration equal to or less than a defined fault characteristic period of time are supposed. | 11-20-2008 |
| 20080280027 | Method of Investigating a Coated Surface of an Object - A method of visually investigating a coated surface of an object, the coating comprising a metal or an alloy, in order to determine whether or not the coating is tight. An increasing potential is applied to the object until a desired current level has been obtained or until a maximum potential has been reached. In case the coating is tight this results in a change in colour of the coating. This may be due to a polarization of the coating material and/or due to an increase in thickness of a naturally occurring metal oxide layer. In case the coating is tight the desired current level can not be obtained, and the potential is increased to the maximum level resulting in a change in colour. In case pinholes are present it is possible to obtain the desired current level, and the increase in potential is stopped before it is high enough to cause the change in colour. Provides a dramatic visual effect allowing an immediate determination of whether or not pinholes are present. Need for additional equipment for determining the presence of pinholes is avoided. In case the coating material is or comprises tantalum or an alloy of tantalum, the colour is changed into a distinct blue colour. | 11-13-2008 |
| 20080276636 | Method For Controlling a Refrigeration System - A method for controlling a refrigeration system comprising a variable compressor capacity, and at least two refrigeration entities, e.g. display cases. Suction pressure is controlled by means of permitting/preventing a flow of refrigerant into evaporator of one or more refrigeration entities. Compressor capacity is controlled to match a desired capacity level and based on a signal derived from one or more properties of the one or more refrigeration entities, said signal reflecting a possible difference between the current compressor capacity and a current refrigeration demand of the refrigeration system. Reduces wear on compressors because switching them ON/OFF is avoided to the largest extent possible. Prevents problems relating to conflicting control strategies due to control parameters, e.g. suction pressure, being controlled by means of two or more controllable parts, e.g. compressors and flow of refrigerant into refrigeration entities. | 11-13-2008 |
| 20080274372 | Corrosion Resistant Object Having an Outer Layer of a Precious Metal - An object comprising a conductive body part, a layer comprising a refractory metal (e.g. tantalum), and a layer comprising a precious metal (e.g. platinum or gold). A metallurgical bond has been formed between the layers. Thereby oxidation of the refractory metal layer, and thereby passivation of the object, can be avoided even with small amounts of precious metal. This lowers the material costs while ensuring desired corrosion resistant properties. The object is suitable for an electrode to be used in a corrosive environment, in particular when a large conductivity is needed. Also a method of manufacturing the object. The metallurgical bond is provided by heating the object. | 11-06-2008 |
| 20080265709 | Direct acting capacitive transducer - A capacitive transducer having a significantly increased actuation force and improved response time as compared to similar prior art capacitive transducers. In the capacitive transducer of the present invention it is not necessary to balance response time and actuation force or to provide pre-strain to the transducer in a direction of actuation. Additionally, buckling in the capacitive transducer is prevented, or at least substantially reduced, in a simple manner. | 10-30-2008 |
| 20080226878 | Dielectric composite and a method of manufacturing a dielectric composite - A composite for a transducer facilitates an increased actuation force as compared to similar prior art composites for transducers. The composite facilitates increased compliance of the transducer in one direction, an improved reaction time as compared to similar prior art composites for transducers, and provides an increased lifetime of the transducer in which it is applied. | 09-18-2008 |
| 20080223207 | WATER HYDRAULIC MACHINE - Motor start circuit for an induction motor, particularly a single-phase AC induction motor, with a main winding ( | 09-18-2008 |
| 20080202152 | FILTER-DRIER UNIT FOR REFRIGERANT CIRCUITS - In known filter-drier cases for refrigerant circuits, the refrigerant flows through filter and drying means in a serial manner. During operation of the refrigerant circuit, this causes an undesirably large pressure drop. It is the task of the invention to provide an improved filter-drier arrangement ( | 08-28-2008 |
