| 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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| 05/16/2002 | WO2002038251A1 Method for regulating a compressor installation with a dryer and compressor installation used therewith |
| 05/15/2002 | CN1349053A Double volume ratio whiral machinery |
| 05/14/2002 | US6386847 Scroll compressor having clutch with powered reverse rotation protection |
| 05/08/2002 | DE10115648A1 Zweistufige Schraubenkompressoranlage und Verfahren zu ihrer Steuerung Two-stage screw compressor system and methods for their control |
| 05/08/2002 | CN1348064A Vortex machine with continuous power regulation |
| 05/07/2002 | US6382930 Screw vacuum pump provided with rotors |
| 05/02/2002 | US20020051709 Oil free screw compressor operating at variable speeds and control method therefor |
| 05/02/2002 | DE10147464A1 Motorbetriebener Kompressor The motor-driven compressor |
| 04/30/2002 | US6379131 Scroll type compressor |
| 04/30/2002 | US6379123 Capacity control scroll compressor |
| 04/30/2002 | US6379122 System and method for automatic thermal protection of a fluid compressing system |
| 04/25/2002 | WO2001075273A3 Scroll compressor |
| 04/24/2002 | EP1199474A2 Scroll compressor |
| 04/24/2002 | CN1083562C Refrigerating circulation compressor controller for |
| 04/23/2002 | US6375443 Screw rotor type wet vacuum pump |
| 04/23/2002 | US6375431 Evacuating apparatus |
| 04/17/2002 | EP1197661A1 Scroll machine with continuous capacity modulation |
| 04/17/2002 | CN1344866A Screw compressor and its running method |
| 04/17/2002 | CN1083065C 涡旋压缩机 Scroll Compressor |
| 04/16/2002 | US6371745 Pivoting vane rotary compressor |
| 04/11/2002 | US20020041817 Pressure adjuster valve and gas compressor using the same |
| 04/11/2002 | DE10046768A1 Screw vacuum pump with bypass valve has through aperture of such dimensions that valve closing piece does not contact valve seat during beginning of evacuating phase |
| 04/09/2002 | US6368065 Linear drive scroll compressor assemble |
| 04/04/2002 | US20020039532 Motor-driven compressors |
| 04/02/2002 | US6364619 Sealed compressor with temperature feedback to motor protector unit |
| 03/28/2002 | WO2002025115A1 Multi-stage screw compressor |
| 03/28/2002 | WO2002025114A1 Variable speed oil-injected screw compressors |
| 03/28/2002 | US20020037230 Axial unloading lift valve for a compressor and method of making the same |
| 03/27/2002 | EP1191224A1 High-pressure dome type compressor |
| 03/27/2002 | EP0843777B1 Reverse rotation preventing clutch |
| 03/27/2002 | CN1081756C Variable-displacement screw-type compressor |
| 03/21/2002 | WO2002023046A1 Pump comprising a water supply |
| 03/21/2002 | CA2421988A1 Pump with water injection |
| 03/19/2002 | US6359411 Displacement machine for compressible media |
| 03/14/2002 | WO2002021230A2 Method and device for regulating a vacuum in a chamber |
| 03/14/2002 | DE10043783A1 Verfahren und Vorrichtung zur Regelung des Vakuums in einer Kammer Method and apparatus for regulating the vacuum in a chamber |
| 03/14/2002 | DE10042545A1 Integrated motor compressor or pump has electric motor and compressor or pump with one or more common electrically driven rotors and housing |
| 03/12/2002 | US6354821 Scroll compressor with dual clutch capacity modulation |
| 03/07/2002 | US20020026806 Air-conditioner, outdoor unit and refrigeration unit |
| 03/06/2002 | CN1339088A 涡卷式压缩机 Scroll compressor |
| 03/06/2002 | CN1339087A 涡旋式压缩机和空调机 Scroll compressors and air conditioners |
| 03/06/2002 | CN1080391C Gas actuated slide valve in a screw compressor |
| 02/28/2002 | WO2002016774A1 Compressor unloader system |
| 02/28/2002 | DE10039780A1 Control device for mechanical booster has valve that selectably connects initial outlet channel to suction channel so that part of transported medium is returned to suction chamber |
| 02/27/2002 | EP1181454A1 Apparatus for preventing vacuum compression of scroll compressor |
| 02/27/2002 | CN1079915C Scroll machine with reverse rotation protection |
| 02/27/2002 | CN1079912C Turbine type compressor |
| 02/27/2002 | CN1079911C Pump having relief valve free of direct structural restraint |
| 02/21/2002 | US20020021969 Compressor, its control device and control method |
| 02/21/2002 | US20020020186 Scroll compressor |
| 02/21/2002 | US20020020178 Refrigerating unit |
| 02/20/2002 | CN1336987A Screw compressor and refrigerator |
| 02/14/2002 | US20020018724 Compressor with control and protection system |
| 02/13/2002 | CN1335453A Radial vortex compressor |
| 02/13/2002 | CN1079139C Horizontal turbo compressor |
| 02/06/2002 | CN1078926C Rolling-wheel type expansion machine |
| 01/30/2002 | EP0858559B1 Scroll compressors |
| 01/30/2002 | CN1333433A Turbine compressor |
| 01/29/2002 | US6341945 Scroll compressor with reduced capacity at high operating temperatures |
| 01/24/2002 | US20020008493 Device for driving an air-conditioning compressor |
| 01/16/2002 | EP1172563A2 Screw compressor for refrigerating apparatus |
| 01/16/2002 | EP1172562A2 Scroll compressor |
| 01/15/2002 | US6338616 Screw rotor compressor having a movable wall portion |
| 01/15/2002 | CA2046548C Scroll machine with floating seal |
| 01/11/2002 | CA2353045A1 Scroll compressor |
| 01/10/2002 | WO2002002920A1 System and method for gaseous fuel control for a turbogenerator/motor |
| 01/09/2002 | CN1330227A Gas compressor and air-conditioning system |
| 01/08/2002 | US6336797 Oiless rotary scroll air compressor air inlet valve |
| 01/03/2002 | US20020001533 Gas Compressor and air conditioning system |
| 01/03/2002 | US20020001532 Radial compliance scroll compressor |
| 01/03/2002 | US20020001523 Air compressor and method of operating the same |
| 01/01/2002 | US6334763 Capacity-controlled scroll-type compressor having internally-bypassing system |
| 12/27/2001 | WO2001098661A1 Scrawl compressor |
| 12/27/2001 | US20010054294 Screw compressor for refrigerating apparatus |
| 12/26/2001 | CN1076796C Vortex compressor |
| 12/19/2001 | CN1327126A Rotary compressor and its operation control method |
| 12/18/2001 | US6330804 Refrigerating unit |
| 12/13/2001 | WO2001095048A1 Fluid control apparatus and method |
| 12/13/2001 | WO2001094859A1 System for controlling starting of air conditioner and control method thereof |
| 12/13/2001 | WO2001094857A1 Control system for starting of air conditioner and control method thereof |
| 12/13/2001 | WO2001094855A1 Control system of degree of superheat of air conditioner and control method thereof |
| 12/13/2001 | US20010049942 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 12/13/2001 | DE10047940A1 Screw air compressor has a frequency controlled drive motor protected from overload by a valve venting to the atmosphere. |
| 12/13/2001 | CA2412135A1 Fluid control apparatus and method |
| 12/12/2001 | EP1162382A2 Gas compressor and air conditioning system |
| 12/11/2001 | US6328546 Screw compressor with adjustable full-load capacity |
| 12/06/2001 | US20010048881 Lysholm compressor |
| 12/06/2001 | DE10027617A1 Einrichtung zum Antrieb eines Klimakompressors Means for driving an air compressor |
| 12/05/2001 | EP1160523A2 Device for driving an air conditioning compressor |
| 12/05/2001 | EP1160455A2 Scroll compressor |
| 12/05/2001 | EP0716231B1 Horizontal scroll compressor |
| 12/05/2001 | CN1325166A Sealed compressor with temp. feed-back provided to motor protector |
| 11/29/2001 | US20010046443 Method for controlling a compressor installation and compressor installation controlled in this manner |
| 11/29/2001 | US20010045097 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 11/28/2001 | EP1158641A2 Sealed compressor with temperature feedback to motor protector unit |
| 11/28/2001 | EP1158167A1 Scroll compressor and air conditioner |
| 11/28/2001 | EP1158166A1 Scroll type compressor |
| 11/28/2001 | CN1075602C 压缩机 Compressor |
| 11/27/2001 | US6321544 Refrigerating cycle |
| 11/22/2001 | US20010043878 Involute spiral wrap device |