| Patents for F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids (4,928) |
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| 09/26/2002 | WO2002075156A1 Pressure generator for flowing media |
| 09/26/2002 | WO2002075155A1 Pressure generator for flowing media |
| 09/26/2002 | DE10200378A1 Gerät und Verfahren zum Steuern eines elektrischen Verdichters Apparatus and method for controlling an electric compressor |
| 09/25/2002 | EP1002197B1 Compressor minimum capacity control |
| 09/25/2002 | EP0964999B1 Vacuum pump |
| 09/25/2002 | CN1371453A Internal intermediate pressure 2-stage compression type rotary compressor |
| 09/24/2002 | US6454538 Motor protector in pocket on non-orbiting scroll and routing of wires thereto |
| 09/24/2002 | US6453688 Idling engine speed control apparatus |
| 09/24/2002 | CA2275816C Bearing lubrication system for a scroll compressor |
| 09/19/2002 | US20020131885 Screw rotor machine having means for axially biasing at least one of the rotors |
| 09/18/2002 | EP1241417A1 Digital controller for scroll compressor condensing unit |
| 09/18/2002 | EP1240433A1 Dry compressing vacuum pump having a gas ballast device |
| 09/18/2002 | CN1369646A Air compressor |
| 09/18/2002 | CN1369645A Rotary air compressor |
| 09/18/2002 | CN1369642A Vortex compressor |
| 09/17/2002 | US6450771 System and method for controlling rotary screw compressors |
| 09/17/2002 | US6449972 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 09/12/2002 | US20020128730 Disturbance estimated type control system, gas compressor control system and method of designing a disturbance estimated type control system |
| 09/12/2002 | US20020127120 Compressor diagnostic and recording system |
| 09/12/2002 | DE10110368A1 Vacuum pump has outlet connector with openings in base of circumferential slot to form an opening and closing passage, and elastic O-ring fitted in slot forms valve element while defining faces of slot form valve seat |
| 09/11/2002 | CN1369049A Prevention of oil backlow from screw compressor in refrigeration chiller |
| 09/10/2002 | USRE37837 Reverse rotation prevention for scroll compressors |
| 09/10/2002 | US6447572 Method of regulating a fluid treatment plant, fluid treatment plant and application of such a plant to the production of a constituent of air |
| 09/10/2002 | US6447271 Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor |
| 09/10/2002 | US6446456 Heat pump and method for controlling operation thereof |
| 09/04/2002 | EP1236904A2 Vane type compressor |
| 09/04/2002 | CN1367320A Vortex compressor |
| 09/04/2002 | CN1090294C Vortex compressor |
| 09/04/2002 | CN1090293C 涡旋压缩机 Scroll Compressor |
| 09/03/2002 | US6443703 Scroll compressor with motor protector in suction flow path |
| 09/03/2002 | CA2275813C Stepped annular intermediate pressure chamber for axial compliance in a scroll compressor |
| 09/03/2002 | CA2275788C Oldham coupling for a scroll compressor |
| 08/29/2002 | WO2002066906A2 Hydristor heat pump |
| 08/29/2002 | US20020119054 Gas compressor |
| 08/29/2002 | US20020119050 Multi-stage variable speed compressor |
| 08/27/2002 | US6438974 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 08/27/2002 | CA2282031C Scroll type compressor in which a soft starting mechanism is improved with a simple structure |
| 08/22/2002 | US20020114719 Scrawl compressor |
| 08/22/2002 | US20020114706 Reversible pivoting vane rotary compressor for a valve-free oxygen concentrator |
| 08/22/2002 | US20020112485 Hydristor heat pump |
| 08/21/2002 | EP0717192B1 Oil level control device for a compressor |
| 08/21/2002 | CN1365430A High pressure dome type compressor |
| 08/14/2002 | DE10106111A1 Tankfahrzeug-Verdichter Tanker compressor |
| 08/13/2002 | US6431843 Method of ensuring optimum viscosity to compressor bearing system |
| 08/07/2002 | EP1229246A2 Scroll compressor |
| 08/07/2002 | EP1228315A1 Scroll compressor for natural gas |
| 08/07/2002 | EP1228292A1 Screw rotor machine having means for axially biasing at least one of the rotors |
| 08/06/2002 | US6428286 Capacity control scroll compressor |
| 08/01/2002 | US20020102165 Scroll compressor |
| 08/01/2002 | US20020102163 Method of ensuring optimum viscosity to compressor bearing system |
| 07/25/2002 | US20020095950 Air-conditioner, outdoor unit and refrigeration unit |
| 07/24/2002 | EP1224395A1 Multistage compressor unit and method for regulating such multistage compressor unit |
| 07/24/2002 | CN1360152A Vortex compressor |
| 07/24/2002 | CN1088159C Compressor having capacity-controlling mechanism with abrasion-free cylinder |
| 07/23/2002 | US6422846 Low pressure unloader mechanism |
| 07/18/2002 | US20020092289 Combined input and output system for an internal combustion engine and turbine power plant |
| 07/17/2002 | EP1223344A1 System for compressing contaminated gas |
| 07/16/2002 | US6419457 Dual volume-ratio scroll machine |
| 07/16/2002 | US6418740 External high pressure to low pressure valve for scroll compressor |
| 07/11/2002 | US20020088241 Apparatus and method for controlling electric compressor |
| 07/10/2002 | CN1357688A 压缩机 Compressor |
| 07/03/2002 | EP1220064A2 Disturbance estimated type control system, gas compressor control system and method of designing a disturbance estimated type control system |
| 07/03/2002 | EP1219836A2 Compressor with outlet pressure control |
| 07/02/2002 | US6413058 Variable capacity modulation for scroll compressor |
| 07/02/2002 | US6412293 Scroll machine with continuous capacity modulation |
| 06/27/2002 | US20020081224 Scroll-type compressor |
| 06/26/2002 | EP1217216A2 Compressor lubrication control |
| 06/26/2002 | EP1217213A2 Scroll-type compressor |
| 06/26/2002 | CN1086778C Eddy gas compressor with by-pass valve |
| 06/25/2002 | US6409490 Rotary screw compressor with slide valve and slide stop guidance bushings |
| 06/25/2002 | US6408645 Air-conditioner, outdoor unit and refrigeration unit |
| 06/25/2002 | US6408635 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 06/20/2002 | US20020076333 Heater material |
| 06/20/2002 | US20020076332 Fail safe electronic pressure switch for compressor motor |
| 06/20/2002 | DE19942687C2 Drehschiebermaschine Rotary vane engine |
| 06/20/2002 | DE10063372A1 Control system for vehicle fuel cell gas supply regulates throughput by setting inlet control edge and/or driving electric motor speed to achieve compressor speed-throughput relationship |
| 06/18/2002 | US6406266 Motor protector on non-orbiting scroll |
| 06/18/2002 | US6406265 Compressor diagnostic and recording system |
| 06/13/2002 | US20020071773 Multi-stage capacity-controlled scroll compressor |
| 06/13/2002 | US20020071769 Screw compressor system and operating method thereof |
| 06/12/2002 | EP1212573A1 Prevention of oil backflow from a screw compressor in a refrigeration chiller |
| 06/12/2002 | CN1353796A Apparatus for preventing vacuum compression of scroll compressor |
| 06/06/2002 | WO2002044533A2 Vane compressor or expander |
| 06/06/2002 | US20020068002 Fluid displacement pump with backpressure stop |
| 06/05/2002 | CN1086019C Reversible rotary compressor |
| 06/04/2002 | US6398507 Overheat protection device for scroll compressor |
| 05/30/2002 | US20020064473 Scroll compressor with anti-reverse rotation clutch |
| 05/30/2002 | US20020064472 Scroll compressor having clutch with powered reverse rotation protection |
| 05/30/2002 | US20020062656 Compressors |
| 05/30/2002 | US20020062655 Compressor for a system for air-conditioning the passenger compartment of a motor vehicle |
| 05/29/2002 | EP1209363A1 Compressor for an air conditioning system for a vehicle |
| 05/29/2002 | EP1209362A2 Hermetic compressors |
| 05/29/2002 | EP1209361A1 Internal intermediate pressure 2-stage compression type rotary compressor |
| 05/28/2002 | US6394120 Method and control system for controlling multiple compressors |
| 05/28/2002 | US6393852 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 05/23/2002 | US20020059921 Throttle loss recovery turbine and supercharger |
| 05/22/2002 | EP1009934B1 Oil flow protection scheme |
| 05/22/2002 | CN1085306C Capacity-controlled scroll-type compressor having internally-bypassing system |
| 05/22/2002 | CN1085305C Scroll-type compressor with variable displacement mechanism |
| 05/21/2002 | US6389837 Scroll compressor |