| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | DISCHARGE PRESSURE ESTIMATION FOR COMPRESSOR | US13004911 | 2011-01-12 | US20120177514A1 | 2012-07-12 | Gregory W. Hahn |
| A compressor has a controller which is provided with current information for a current passing into a motor associated with the compressor. The compressor includes a compressor pump unit driven by the motor, and a discharge line. The controller is programmed to utilize the current information to predict a discharge pressure at the discharge of the compressor. | ||||||
| 102 | LUBRICANT PUMP SYSTEM | US13377463 | 2010-06-04 | US20120148423A1 | 2012-06-14 | René Wagner |
| A lubricant pump system may include a lubricant pump controlled by a proportional valve. An actuating unit may be disposed in the lubricant pump and configured to control a delivery output of the lubricant pump. A first pressure chamber and at least one second pressure chamber may be configured to adjust the actuating unit against a spring, wherein the second pressure chamber is smaller than the first pressure chamber. In response to a failure of the proportional valve, the lubricant pump may be exclusively pressurized via the at least one second pressure chamber. | ||||||
| 103 | PUMPS AND PUMP HEADS COMPRISING VOLUME-COMPENSATION FEATURE | US13174463 | 2011-06-30 | US20120003107A1 | 2012-01-05 | Stephen Michael Burns; Charles F. Carr; David J. Grimes |
| A fluid pump having a pump housing that includes at least one expansion joint, provides volume compensation, as needed, to adjust for changes in pressure in the pump housing. Various embodiments automatically and passively reduce static pressure in the pump housing associated with a freezing event, thereby preventing damage to the pump head. Volume compensation is achieved by employing, in each expansion joint, a dynamic seal that allows relative movement of two portions of the pump housing, and a bias that provides a selected counter-force to the movement of the housing portions. The subject pumps are particularly suited for use in automotive and other rugged applications, in which fluid pumps may experience recurring freezing events. | ||||||
| 104 | Progressive cavity apparatus with transducer and methods of forming and use | US11967941 | 2007-12-31 | US07941906B2 | 2011-05-17 | Geoff Downton |
| The present invention relates to a stator (100-1000) with a profiled helical bore (106,206,306,606,706,806,906,1006) having a cast material layer (102;202;302;602;702;802;902;1002) with transducers (104A-104D;304;604A-604D;710;804;904A-904C;1010) disposed therein and describes the methods of forming such stators. Cast material can be fluidic during displacing of a transducer therein. Cast material layer 202 can include housings (218,222) disposed therein and/or a cavity 226 formed therein. Transducer can be a sensor (104A-104C) and/or an actuator 104D. Transducer 804 can extend axially along a length of the stator 800. Transducer or plurality of transducers (904A-904C) can extend along a helical path. Additionally or alternatively, sleeve 1008 can include a transducer 1010. | ||||||
| 105 | Start-Up Control Device and Method for Electric Scroll Compressor | US12602449 | 2008-05-21 | US20100178175A1 | 2010-07-15 | Shigeyuki Koyama |
| A device executing a start-up control method for an electric scroll compressor has a thermistor (18) and a pressure sensor (20) which, prior to the start-up of the scroll compression unit, detect temperature and pressure of a suction refrigerant introduced into the compression unit (2), and a controller (10) for controlling driving of a motor (4) of the compression unit (2) at the start-up of the compressor. The controller (10) determines at the start-up of the compressor whether or not a liquid refrigerant exists in the compression unit (2) on the basis of the detected temperature and pressure; selects either a normal start-up mode or a liquid-discharge mode in which the rotational speed of the motor (4) is regulated to be lower than in the normal start-up mode, according to the determination result; and controls the start-up of the compression unit (2) through the motor (4) according to the selected mode. | ||||||
| 106 | Variable displacement vane pump with variable target regulator | US10959803 | 2004-10-06 | US07674095B2 | 2010-03-09 | Douglas G. Hunter; Thomas Haase |
| A variable displacement vane-type fluid pump is provided which permits improved regulation of the pump discharge such that the pump can meet the various requirements of lubrication for internal combustion engines at all speeds with minimized use of power. Of course, the vane pump may also be utilized in a wide range of power transmission and other fluid distribution applications. The vane pump of the invention may also use both hydrostatic and mechanical actuators to control the position of its containment ring or eccentric ring and hence, regulate the output of the pump. According to yet another aspect of the present invention, to prevent inlet flow restriction or cavitation, a valve may be provided to permit some of the pump outlet or discharge flow to bleed into the pump inlet to provide needed velocity energy to the fluid flow into the pump inlet. A system for lubrication of an engine using a fixed displacement pump for providing an engine speed input for controlling a second main variable displacement type oil pump and maintaining a target oil pressure in the oil pressure circuit. A solenoid valve is used for venting output of the fixed displacement pump to create a second target oil pressure characteristic or curve when desired. | ||||||
| 107 | Control System and Method For Pump Output Pressure Control | US12442735 | 2007-09-26 | US20100028171A1 | 2010-02-04 | David R. Shulver; Matthew Williamson; Adrian C. Cioc |
| A pump system includes pump having a control feature which, responsive to a supply of pressurized working fluid, reduces the pressure of the working fluid pressurized by the pump. The control feature is connected to the output of the pump by a regulating valve. The control feature receives pressurized working fluid to decrease the output of the pump in response to the pressure of the supplied working fluid. A regulating valve selectively connects the pressurized working fluid to the control feature. The regulating valve has a control port to receive pressurized working fluid from the pump to urge the valve to a closed position against a biasing force. A controllable valve is operable to interrupt the supply of pressurized working fluid to control port to alter the output pressure of the pump. | ||||||
| 108 | Installation for high pressure compression with several stages | US11991067 | 2006-09-01 | US20090304522A1 | 2009-12-10 | Patrick Marcel Augustin Lelong; Hans Théo Magits |
| The invention concerns an installation for high pressure compression with several stages, normally used for producing PET bottles. The inventive installation comprises a main pipe (2) emerging in a baffle plate (3), wherein at least two compressors (4, 5) are mounted in series each having its own drive member (9, 10). The installation is equipped with means (7) for determining the pressure at the output of the main pipe (2), said installation being connected to a control box (8). Typically, the control box (8) is connected to at least two of the drive members (9, 10) of the compressors (4, 5) and ensures monitoring of said compressors such that the latter rotate jointly whether charged or uncharged. Thus, the compressors (4, 5) are jointly charged based on the pressure prevailing in the baffle plate (3), such that the charging of the compressor representing the overpressure stage, the compressor(s) of the lower compression stages are automatically and jointly charged. | ||||||
| 109 | SLIDE VALVE ACTUATION FOR OVERPRESSURE SAFETY | US12294116 | 2006-06-02 | US20090246062A1 | 2009-10-01 | Steven J. Holden |
| A compressor (20) has an unloading slide valve (100). The valve has a valve element (102) having a range between a first condition and a second condition, the second condition being unloaded relative to the first condition. A piston (124) is in a cylinder (128) and mechanically coupled to the valve element. A control valve (140) is coupled to a headspace (138) of the cylinder to selectively expose the headspace to a flu source (144), pressure of fluid in the headspace producing a force on the piston and valve element in a direction from the second condition toward the first condition. The compressor includes a pressure relief valve coupling (180) in the headspace to suction conditions to unload the compressor responsive to an overpressure. | ||||||
| 110 | PROGRESSIVE CAVITY APPARATUS WITH TRANSDUCER AND METHODS OF FORMING AND USE | US11967941 | 2007-12-31 | US20090169364A1 | 2009-07-02 | Geoff Downton |
| The present invention relates to a stator (100-1000) with a profiled helical bore (106,206,306,606,706,806,906,1006) having a cast material layer (102;202;302;602;702;802;902;1002) with transducers (104A-104D;304;604A-604D;710;804;904A-904C;1010) disposed therein and describes the methods of forming such stators. Cast material can be fluidic during displacing of a transducer therein. Cast material layer 202 can include housings (218,222) disposed therein and/or a cavity 226 formed therein. Transducer can be a sensor (104A-104C) and/or an actuator 104D. Transducer 804 can extend axially along a length of the stator 800. Transducer or plurality of transducers (904A-904C) can extend along a helical path. Additionally or alternatively, sleeve 1008 can include a transducer 1010. | ||||||
| 111 | Compressor diagnostic and protection system and method | US11098583 | 2005-04-04 | US07484376B2 | 2009-02-03 | Hung M. Pham |
| A system and method includes a compressor, a motor drivingly connected to the compressor, a current sensor detecting current supplied to the motor, a discharge line temperature sensor detecting discharge line temperature, and processing circuitry receiving current data from the current sensor and discharge line temperature data from the discharge line temperature sensor and processing the current data and the discharge line temperature data to determine an efficiency of the system. | ||||||
| 112 | REFRIGERATION MONITORING SYSTEM AND METHOD | US12137191 | 2008-06-11 | US20080307819A1 | 2008-12-18 | Hung M. Pham |
| A heat-pump system may include a compressor, an outdoor heat exchanger including an outdoor coil, an indoor heat exchanger including an indoor coil, and a sensor assembly including a first sensor disposed in the outdoor coil, a second sensor disposed in the indoor coil, and a third sensor disposed between the outdoor heat exchanger and the indoor heat exchanger. A controller may receive data from the first sensor, the second sensor, and the third sensor and may determine a first system operating parameter when the heat-pump system is operating in a cooling mode and a second system operating parameter when the heat-pump system is operating in a heating mode. | ||||||
| 113 | Compressor configuration system and method | US11098577 | 2005-04-04 | US07458223B2 | 2008-12-02 | Hung M. Pham |
| A system and method including a compressor operable in a refrigeration circuit and including a motor, a current sensor detecting current drawn by the motor and providing a high-side condition signal, a discharge line temperature sensor detecting a discharge line temperature of the compressor and providing a low-side condition signal, and processing circuitry processing the high-side condition signal and the low-side condition signal during installation of the compressor to initially configure the compressor based on a non-measured condition of the refrigeration circuit. | ||||||
| 114 | Variable displacement pump and control therefor | US11349705 | 2006-02-08 | US07396214B2 | 2008-07-08 | Douglas G. Hunter; Dennis Koenig |
| A control system for a variable displacement pump. The control system is operably associated with an engine control unit for passively or actively controlling the output of the pump in response to signals from the engine control unit. | ||||||
| 115 | Variable displacement vane pump and method of controlling the same | US11714852 | 2007-03-07 | US20070212243A1 | 2007-09-13 | Shigeaki Yamamuro; Hideo Konishi; Fusao Semba |
| A variable displacement vane pump includes: a cam ring defining first and second fluid pressure chambers on both sides thereof; and a rotor mounted inside the cam ring, the rotor defining an annular chamber outside thereof. Arranged outside of the rotor, vanes divide the annular chamber into a plurality of pump chambers. A suction port is defined in a section of the annular chamber in which each of the pump chambers expands with the rotation of the rotor, while a discharge port is defined in a section of the annular chamber in which each of the pump chambers contracts with the rotation of the rotor. A first fluid passage is connected to one of the first and second fluid pressure chambers. A second fluid passage is connected to one of the suction port and the discharge port. An electromagnetic valve controls fluid communication between the first and second fluid passages. | ||||||
| 116 | Oil-injection screw compressor | US11544657 | 2006-10-10 | US20070140866A1 | 2007-06-21 | Hideharu Tanaka |
| An oil-injection screw compressor in which oil is mixed into compressed gas, in order to prevent back flow during the no-load running and stoppage of the compressor body while contributing to a cost reduction, comprising: a compressor body; a motor for driving the compressor body; an inverter for variably controlling the number of revolutions of the motor; a blow-off valve disposed on the discharge side of the compressor body and capable of releasing a quantity of air beyond the discharge capacity of the compressor body when operating of the motor at the minimum number of revolutions; a suction non-return valve which, disposed on the suction side of the compressor body, is closed when it is at a stop; and a pressure sensor for detecting the discharge side pressure of the compressor body; and, a controller which, at the time of operation of the motor at the minimum number of revolutions, opens the blow-off valve when the discharge side pressure P detected by the pressure sensor has risen to a prescribed upper limit Pu and closes the blow-off valve when it has fallen to a prescribed control pressure Po. | ||||||
| 117 | Internal gear machine with variable capacity | US10519244 | 2003-06-17 | US07195467B2 | 2007-03-27 | Leonardo Cadeddu |
| A fluidic machine has a fixed body, an external orbital member rotatable around a first rotational axis and internal gear teeth including a first teeth number, a transmission member rotatable around a second rotational axis, an internal orbital member supported by the transmission member, having external gear teeth including a second teeth number different from the first teeth number and meshing with the internal gear teeth of the external orbital member, thus determining among the gear teeth of the two orbital members spaces whose volume is variable during rotation. One of the orbital members is mounted axially displaceable and is pushed by an elastic push member in the direction producing a more extended engagement with the other orbital member, and a piston, mounted displaceable within the non-axially displaceable orbital member and resting against the axially displaceable orbital member, is subjected, to the pressure of the high pressure connection. | ||||||
| 118 | Multiple compressor control system | US11086527 | 2005-03-22 | US20060216159A1 | 2006-09-28 | Sridharan Raghavachari |
| At least one of a plurality of compressors connected to a fluid distribution system are loaded and/or unloaded based upon a capacitance of the fluid distribution system. | ||||||
| 119 | Variable displacement pump and control therefor | US11349705 | 2006-02-08 | US20060127229A1 | 2006-06-15 | Douglas Hunter; Dennis Koenig |
| A control system for a variable displacement pump. The control system is operably associated with an engine control unit for passively or actively controlling the output of the pump in response to signals from the engine control unit. | ||||||
| 120 | Hydraulic pump with variable flow and variable pressure and electric control | US11287099 | 2005-11-23 | US20060104823A1 | 2006-05-18 | Douglas Hunter; Matthew Jannausch |
| A pump system including a control system for controlling a variable flow pump for controlling oil flow and oil pressure in a hydraulic circuit in an engine. The system includes a pump member, an actuating member capable of controlling the flow generated by the pump member, and a solenoid valve system including a solenoid valve portion and a pressure regulator valve portion. The solenoid valve system is operably associated with the pump and the pressure regulator valve portion is operably associated with the actuating member for selectively controlling the flow generated by the pump member. An electronic control unit is operably associated with the solenoid valve portion, wherein the electronic control unit is selectively operable to provide an input control signal to the solenoid valve portion for controlling oil flow and oil pressure. | ||||||
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