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| Number | Title | Issue Date |
| 7559750 | Overheating protection apparatus of scroll compressor Provided is an overheating protection apparatus of a scroll compressor which comprises: a bypass passage formed in a fixed scroll, for connecting a high pressure chamber to a low pressure chamber; a valve assembly installed on the bypass passage, for opening/closing... | 07/14/2009 |
| 7503755 | Baffle plate assembly for a compressor A baffle plate assembly has a baffle plate comprising a back plate and a partition wall. The back plate has an inner space and is attached to the housing of the compressor. The partition wall is formed on the back plate to divide the inner space of the back plate in... | 03/17/2009 |
| 7476089 | Scroll compressor having overheat preventing unit A scroll compressor having an overheat preventing unit includes a casing; a driving motor installed in the casing and generating a driving force; a compression unit connected with the driving motor by a rotating shaft, and compressing a fluid and discharging it exte... | 01/13/2009 |
| 7364416 | Scroll type compressor with an enhanced sealing arrangement A scroll type compressor with an enhanced sealing arrangement includes two sealing rings, mounted one between a first part of a gliding block and a first chamber of a fixed scroll and another one between a second part of the gliding block and a second chamber of the... | 04/29/2008 |
| 7311501 | Scroll compressor with bifurcated flow pattern A scroll compressor includes various features that promote a bifurcated flow pattern of gas through a compressor shell to reduce oil entrainment. After entering the shell, some gas travels upward, which reduces the volume of gas traveling downward toward an oil sump... | 12/25/2007 |
| 7293968 | Capacity-changing unit of orbiting vane compressor Disclosed herein is a capacity-changing unit disposed in an orbiting vane compressor, which compresses refrigerant gas introduced into a cylinder through an orbiting movement of an orbiting vane in the cylinder, for easily changing capacity of the orbiting vane comp... | 11/13/2007 |
| 7255541 | Fluid pump A fluid pump includes a housing, a drive source, a rotary unit and a pumping mechanism. The drive source is accommodated in the housing and includes a rotary member for rotation. The rotary unit includes the rotary member and a rotary shaft, which is operatively con... | 08/14/2007 |
| 7225796 | Control of induction system hydrocarbon emissions A method and apparatus for reducing or preventing hydrocarbon emissions from an air induction system of an automotive vehicle during diurnal periods opens the fuel line to ambient fuel tank pressure when fuel pressure in the fuel line decreases due to cooling of the... | 06/05/2007 |
| 7216856 | Accelerator apparatus for diaphragm carburetor The accelerator apparatus prevents air from remaining within a pump chamber and discharged fuel vapor from causing a pumping effect so as to a destabilize engine operation and increase of an exhaust gas content of harmful material, in an accelerator apparatus in whi... | 05/15/2007 |
| 7207786 | Fuel pump with filter-absent safety valve and universal inlet and outlet Fuel pump assembly 10 includes a filter 42 that rests on ledge 48, between the pump housing 22 and inlet cap 56. Filter detector 50 has a valve engager 62 for opening the check valve 58 and bearing feet 52 | 04/24/2007 |
| 7207787 | Scroll compressor with backflow-proof mechanism A scroll compressor with a backflow-proof mechanism. The scroll compressor comprises a slider disposed on a scroll couple, forming several enclosed spaces. The slider is raised by the working fluid in the spaces, preventing liquid leakage from a high-pressure chambe... | 04/24/2007 |
| 7074013 | Dual volume-ratio scroll machine The present invention provides the art with a scroll machine which has a plurality of built-in volume ratios along with their respective design pressure ratios. The incorporation of more than one built-in volume ratio allows a single compressor to be optimized for m... | 07/11/2006 |
| 7062366 | Method of controlling a compressor driven by the engine of a vehicle The invention relates to a method of controlling a compressor which is driven by the engine of a vehicle and which supplies at least one compressed air tank. The compressor is activated or de-activated according to a comparison which is made between the value of the... | 06/13/2006 |
| 7052255 | Apparatus for changing capacity of scroll compressor with movable seal member An apparatus for changing capacity of scroll compressor comprises: a seal member movably installed on one of facing surfaces of a fixed scroll so as to seal a compression space made by the fixed scroll and orbiting scroll; a back pressure passage formed to be commun... | 05/30/2006 |
| 7043412 | Method and apparatus for predicting vehicle air system performance and recommending air system components A method of designing a vehicle air system is provided. This method includes the use of a computer to simulate operation of a proposed vehicle air system over a time period, wherein the proposed vehicle air system comprises an air compressor and a pneumatically oper... | 05/09/2006 |
| 6964558 | Compressor utilizing low volt power tapped from high volt power Low voltage electrical power is supplied to a diagnostic control device in a sealed compressor. Electrical power is tapped from a high voltage power line and transformed to low voltage power that in turn operates the diagnostic control device. The diagnostic control... | 11/15/2005 |
| 6913448 | Load-regulating device for scroll type compressors A load-regulating device for scroll type compressors comprising a compressor housing, a bracket body, a partition block, a gliding block, a pair of scrolls and a plurality of air chambers, wherein the gliding block being coupled with the pair of scrolls for defining... | 07/05/2005 |
| 6905317 | Oil pump apparatus An oil pump apparatus includes a body, a first rotor and a second rotor disposed in the body so as to be able to rotate and a regulator valve mechanism for regulating the pressure of oil discharged to portions of an engine, wherein the regulator valve mechanism is d... | 06/14/2005 |
| 6887046 | Coolant pump, mainly for automotive use An impeller pump with thermostatically adjustable guide vanes is suitable for use as an automotive coolant pump. The pump is driven by a constant speed electric motor, and flow variation is controlled by varying the orientation of the vanes. Orientation of the vanes... | 05/03/2005 |
| 6709244 | Diagnostic system for a compressor A scroll type machine incorporates a unique system for monitoring the status of a valve which is used to control the capacity of the compressor. The valve functions to open and close a fluid passage between two areas of the compressor for capacity modulation. By mon... | 03/23/2004 |
| 6685441 | Scroll compressor A scroll compressor of simple structure and low production cost which can be protected when abnormal pressure state or abnormal temperature state of the compressor comprises: a sealed casing including a first chamber for forming a low pressure and a secon... | 02/03/2004 |
| 6663352 | Method and apparatus for dynamically determining vapor pressure in pumping systems A method and system for dynamically determining a vapor pressure of a fluid passing through a pumping system by diverting a portion of the fluid from the pumping system into a chamber, isolating the diverted fluid from the pumping system, evacuating the c... | 12/16/2003 |
| 6651441 | Fluid flow system for a gas turbine engine A fluid flow system for a gas turbine engine provides combustion fuel to a main pump and an actuator pump significantly reducing heat generation at low flow demand, while regulating actuator flow temperature at high flow demand. Fuel flow from the actuato... | 11/25/2003 |
| 6648609 | Pump as a pressure source for supercritical fluid chromatography involving pressure regulators and a precision orifice The invention is a device and method in a high-pressure chromatography system, such as a supercritical fluid chromatography (SFC) system, that uses a pump as a pressure source for precision pumping of a compressible fluid. The preferred exemplary embodime... | 11/18/2003 |
| 6644934 | Aftercooler bypass means for a locomotive compressed air system Method and apparatus for heating gases cooled by an aftercooler that receives hot gases from a compressor. The method includes the steps of directing at least a portion of said hot gases to means for bypassing the aftercooler, and using the bypass means t... | 11/11/2003 |
| 6540484 | Scroll compressor with thermostat mounted in non-orbiting scroll A thermostat is positioned within a scroll compressor such that a thermostat switch is positioned in the non-orbiting scroll, and a body of the thermostat extends through the crankcase. The thermostat communicates with a heater associated with a motor pro... | 04/01/2003 |
| 6499963 | Coolant pump for automotive use An impeller pump with thermostatically adjustable guide vanes is suitable for use as an automotive coolant pump. The pump is driven by a constant speed electric motor, and flow variation is controlled by varying the orientation of the vanes. Orientation o... | 12/31/2002 |
| 6457948 | Diagnostic system for a compressor A scroll type machine incorporates a unique system for monitoring the status of a valve which is used to control the capacity of the compressor. The valve functions to open and close a fluid passage between two areas of the compressor for capacity modulat... | 10/01/2002 |
| 6454538 | Motor protector in pocket on non-orbiting scroll and routing of wires thereto A scroll compressor is provided with a motor protector for stopping operation of its motor should conditions be indicative of a problem. The motor protector is sensitive to elevated temperature, and stops operation of the motor should a sensed temperature... | 09/24/2002 |
| 6427663 | Inlet throttle pump assembly for diesel engine and method A pump assembly flows pressurized engine oil to HEUI fuel injectors in a diesel engine. The assembly includes an inlet throttle valve which controls the volume of oil flowed to the pump dependent upon the difference between the pump outlet pressure and a ... | 08/06/2002 |
| 6379122 | System and method for automatic thermal protection of a fluid compressing system A method and apparatus for controlling a compressor system by sensing a temperature of compressed fluid in an outlet of a compressor and automatically reducing an output of the compressor when the temperature exceeds a predetermined temperature and a pres... | 04/30/2002 |
| 6309193 | Coolant pump for automotive use An impeller pump with thermostatically adjustable guide vanes is suitable for use as an automotive coolant pump. The pump is driven by a constant speed electric motor, and flow variation is controlled by varying the orientation of the vanes. Orientation o... | 10/30/2001 |
| 6302654 | Compressor with control and protection system A compressor protection and control subsystem for a rotary compressor provides temperature pressure, mis-wiring and vibrational protection for the scroll machine. The vibrational protection comprises a vibration sensor which is integrated on the circuit b... | 10/16/2001 |
| 6283725 | Aftercooler bypass means for a locomotive compressed air system Method and apparatus for heating gases cooled by an aftercooler that receives hot gases from a compressor. The method includes the steps of directing at least a portion of said hot gases to means for bypassing the aftercooler, and using the bypass means t... | 09/04/2001 |
| 6273686 | Apparatus and method for controlling a rated system pressure The rated system pressure in a pressure control system is adjusted through a pressure relief valve (2). In addition to the pressure relief valve (2), the system includes a check valve (4), a pressure sensor (3), a position switch (10), a first pressure ad... | 08/14/2001 |
| 6267565 | Scroll temperature protection A scroll compressor includes a first scroll member and a second scroll member with intermediate spiral wraps. A drive member causes the scroll member to orbit relative to one another to create pockets of progressively changing volume between a discharge p... | 07/31/2001 |
| 6253029 | Vacuum processing apparatus The inside of a vacuum pump is heated by means of a first heating unit to a temperature higher than the temperature at which products of reaction discharged from a process chamber are separated, and the inner surface of an exhaust pipe is heated to a temp... | 06/26/2001 |
| 6244834 | Variable capacity-type scroll compressor A compressor of scroll type or the like, in which, in order to change the discharge capacity automatically in accordance with the rpm (rotational speed) of a shaft (4) by simple means, the centrifugal force exerted on a movable scroll (9) orbiting with th... | 06/12/2001 |
| 6036449 | Air compressor control A system and method for air compressor control wherein the air compressor is loaded only when engine activities require it to be loaded or when free engine power is available to operate the compressor. An air compressor system is an engine-driven, piston-... | 03/14/2000 |
| 5950443 | Compressor minimum capacity control A method of controlling compressor minimum capacity. The method comprises the steps of: measuring a first condition; comparing the first condition to a first setpoint to determine a first conditioned error; modulating compressor capacity relative to the f... | 09/14/1999 |
