| Patents for F04C 27 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids (2,516) |
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| 03/18/2003 | US6533561 Scroll type compressor |
| 03/18/2003 | CA2292330C Scroll compressor having axial compliance valve |
| 03/12/2003 | EP0843098B1 Scroll compressor |
| 03/12/2003 | CN1401910A Swirl compressor |
| 03/05/2003 | EP1287298A1 Control system of degree of superheat of air conditioner and control method thereof |
| 03/05/2003 | EP1287296A1 System for controlling starting of air conditioner and control method thereof |
| 03/05/2003 | EP1287295A1 Control system for starting of air conditioner and control method thereof |
| 03/05/2003 | CN2538981Y Improved structure of motive seal for Roots pump |
| 03/04/2003 | US6527528 Scroll compressor with controlled fluid venting |
| 02/26/2003 | EP0772742B1 Axial sealing apparatus for scroll type compressor |
| 02/26/2003 | CN1399073A Vortex compressor |
| 02/26/2003 | CN1102205C Whirl type air compressor |
| 02/20/2003 | WO2003014571A1 Compressor |
| 02/20/2003 | US20030033823 Digital scroll condensing unit controller |
| 02/18/2003 | US6519958 Control system for starting of air conditioner and control method thereof |
| 02/13/2003 | US20030031577 Gas compressor |
| 02/13/2003 | US20030031575 Scroll compressor sealing unit structure |
| 02/13/2003 | US20030031570 Compressor |
| 02/12/2003 | EP1283367A2 Vane compressor |
| 02/11/2003 | US6517332 Scroll compressor with controlled fluid venting to back pressure chamber |
| 02/06/2003 | US20030026721 Scroll type compressor |
| 02/05/2003 | EP1281869A2 Scroll type compressor |
| 01/30/2003 | US20030021712 Scroll compressor |
| 01/29/2003 | EP1279835A2 Scroll compressor |
| 01/28/2003 | US6511308 Scroll vacuum pump with improved performance |
| 01/23/2003 | US20030017058 Scroll compressors |
| 01/16/2003 | US20030012659 Dual volume-ratio scroll machine |
| 01/14/2003 | US6506036 Scroll compressors |
| 01/09/2003 | US20030007881 Oil leak prevention structure of vacuum pump |
| 01/08/2003 | EP1273801A2 Sealing for vacuum pump |
| 01/02/2003 | US20030003008 Oil leak prevention structure of vacuum pump |
| 01/02/2003 | US20030000238 Scroll compressor |
| 01/02/2003 | EP1270948A2 Sealing for a vacuum pump |
| 01/02/2003 | EP1270947A2 Scroll compressors |
| 01/01/2003 | CN1388868A Screw-type compressor |
| 12/31/2002 | US6499305 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 12/24/2002 | US6497563 Dry-compressing screw pump having cooling medium through hollow rotor spindles |
| 12/19/2002 | WO2002052205A3 Compressor |
| 12/18/2002 | CN1385659A Digital volute condensation unit controller |
| 12/11/2002 | CN1095941C Vortex copressor |
| 12/11/2002 | CN1095940C 涡旋压缩机 Scroll Compressor |
| 12/05/2002 | WO2002097275A1 Liquid seal pump of the helical screw type |
| 12/05/2002 | US20020182097 Oil leak Prevention Structure for vacuum pump |
| 12/05/2002 | US20020178737 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 12/05/2002 | DE10213256A1 Elektrisch angetriebene Kompressoren und Verfahren zum Umlaufenlassen von Schmieröl durch diese Kompressoren Electrically driven compressors and method for circulating lubricating oil through these compressors |
| 12/04/2002 | EP0842363B1 Spiral compressor, useful in particular to generate compressed air for rail vehicles |
| 12/04/2002 | CN1383472A Scrawl compressor |
| 12/04/2002 | CN1382912A Diagnostic system of compressor |
| 12/04/2002 | CN1382911A 复合压缩机 Composite compressor |
| 11/26/2002 | US6485279 Thrust load reliever |
| 11/20/2002 | CN1380963A Control system of degree of superheat of air conditioner and ocntrol method thereof |
| 11/20/2002 | CN1380960A Control system for starting of air conditioner and control method thereof |
| 11/20/2002 | CN1380959A System for controlling starting of air conditioner and control method thereof |
| 11/20/2002 | CN1380947A 2-cylinder, 2-stage compression type rotary compressor |
| 11/14/2002 | US20020168506 Tip seal and seal material for scroll type compressor |
| 11/14/2002 | US20020168279 Shaft seal structure of vacuum pumps |
| 11/14/2002 | US20020166731 Oil leak prevention structure for vacuum pump |
| 11/13/2002 | EP1256721A2 Sealing for a rotary vacuum pump |
| 11/13/2002 | EP1256720A2 Sealing for a rotary vacuum pump |
| 11/07/2002 | US20020164258 Scroll compressor with unique mounting of non-orbiting scroll |
| 11/06/2002 | CN1093919C Perfected twin-screw pump, particularly suitable for pumping of biphase fluids in submarine |
| 10/31/2002 | US20020159907 Screw compressor |
| 10/31/2002 | US20020159904 Double-cylinder two-stage compression rotary compressor |
| 10/31/2002 | US20020159898 Plural compressors |
| 10/31/2002 | US20020157409 Digital scroll condensing unit controller |
| 10/31/2002 | DE10204686A1 Scrollkompressor für eine Brennstoffzelle mit einem rund um eine Antriebswelle angeordneten Sperrelement Scroll compressor for a fuel cell with a turn around a drive shaft arranged blocking element |
| 10/30/2002 | EP1253324A2 Diagnostic system for a hermetic scroll compressor |
| 10/30/2002 | EP1253323A2 Hermetic compressors |
| 10/29/2002 | US6471498 Fluid machinery having stepped spirals with axial pushing means for the moving spiral |
| 10/29/2002 | US6471494 Vacuum pumping apparatus |
| 10/24/2002 | US20020155014 Pressure seal for a vacuum pump |
| 10/24/2002 | EP1025403A4 An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 10/22/2002 | US6467280 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 10/17/2002 | US20020150494 Shaft seal structure of vacuum pumps |
| 10/15/2002 | US6464481 Scroll compressors |
| 10/15/2002 | US6464479 Scroll-type apparatus |
| 10/09/2002 | EP0714482B2 Vacuum pump with oil separator |
| 10/09/2002 | CN1373299A Vortex compressor |
| 10/09/2002 | CN1092292C Scroll compressor with controlled fluid venting to back pressure chamber |
| 10/08/2002 | US6461132 Scroll compressor with unique mounting of non-orbiting scroll |
| 10/08/2002 | US6461130 Scroll compressor with unique mounting of non-orbiting scroll |
| 10/08/2002 | US6461115 Suction chamber for a horizontal pumping system |
| 10/03/2002 | US20020141893 Shaft seal structure of vacuum pumps |
| 10/02/2002 | DE10160722A1 Spiralverdichter und Verfahren zum Herstellen desselben The same scroll compressor and method of manufacturing |
| 10/01/2002 | US6457948 Diagnostic system for a compressor |
| 09/26/2002 | US20020136653 Scroll compressors and methods for circulating lubrication oil through the same |
| 09/26/2002 | US20020136652 Electrically driven compressors and methods for circulating lubrication oil through the same |
| 09/26/2002 | US20020134101 Electrically driven compressors and methods for circulating lubrication oil through the same |
| 09/26/2002 | DE10160659A1 Spiralverdichter Scroll compressor |
| 09/24/2002 | US6454551 Seal structure in a scroll type compressor |
| 09/19/2002 | WO2001094793A9 Axial seal |
| 09/18/2002 | EP1241417A1 Digital controller for scroll compressor condensing unit |
| 09/17/2002 | US6449972 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 09/12/2002 | WO2002070900A1 Water-injected screw compressor |
| 09/11/2002 | EP1239157A1 Scroll compressor |
| 09/11/2002 | CN1090718C Worm compressor with small separation force between fixed and circlar screw pieces |
| 09/04/2002 | EP1236903A2 Shaft seal structure of vacuum pumps |
| 09/04/2002 | EP1236902A2 Shaft seal structure of vacuum pumps |
| 09/04/2002 | EP1236901A2 Shaft seal structure of vacuum pumps |
| 09/04/2002 | CN1090295C 涡旋式压缩机 Scroll compressor |