| Patents for F04C 29 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups (16,981) |
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| 05/15/1997 | WO1997017544A1 Radial compliance mechanism for co-rotating scroll apparatus |
| 05/15/1997 | WO1997017543A1 Helical compressor |
| 05/14/1997 | EP0711384B1 Two-stage slide vane vacuum pump |
| 05/14/1997 | EP0663045B1 Method of operating a claw-type vacuum pump, and a claw-type vacuum pump suitable for carrying out the method |
| 05/13/1997 | US5628194 Process for pumping gaseous helium at cryogenic temperatures by a positive displacement pump |
| 05/09/1997 | WO1997016646A1 Rotary compressor |
| 05/07/1997 | EP0771404A1 Refrigeration system and pump therefor |
| 05/07/1997 | EP0771394A1 Air cooling system for scroll compressors |
| 05/07/1997 | DE19603110A1 Kompressor Compressor |
| 05/07/1997 | CN1149108A Perfected twin-screw pump, particularly suitable for pumping of biphase fluids in submarine environment |
| 05/07/1997 | CN1034831C Drive bush for use in scroll type fluid machine |
| 05/07/1997 | CN1034830C Scroll type compressor |
| 05/06/1997 | US5626470 Method for providing lubricant to thrust bearing |
| 05/06/1997 | US5626032 Cyclothermic converter vane pump and impeller system |
| 05/06/1997 | CA2106647C Valved discharge mechanism in a refrigerant compressor |
| 05/02/1997 | EP0770464A1 Composite fiber rotor vane and method for its production |
| 05/01/1997 | WO1997015759A1 Transmission including a two-part clutch arrangement |
| 04/30/1997 | CN1034753C Rotary compressor with oil injection |
| 04/30/1997 | CN1034752C Fluid pump and rotary machine having said fluid pump |
| 04/30/1997 | CN1034751C A blade for a rotary compressor |
| 04/29/1997 | US5624249 Pumping process for operating a multi-phase screw pump and pump |
| 04/29/1997 | US5624243 Scroll compressor capable of effectively cooling motor thereof |
| 04/29/1997 | US5624236 Oil cooled air compressor |
| 04/24/1997 | WO1997014891A1 Refrigerant compressor |
| 04/24/1997 | CA2207398A1 Refrigerant compressor |
| 04/23/1997 | EP0769794A1 Electrical component protection device |
| 04/23/1997 | EP0708889B1 Rotary screw compressor |
| 04/23/1997 | CN1148142A Mechanism for preventing self-rotating for vortex compressor |
| 04/23/1997 | CN1148141A Multi-cylinder rotary air compressor |
| 04/23/1997 | CN1034689C Horizontal rotative type compressor |
| 04/22/1997 | US5622488 Scroll type fluid machine having first and second frame members to increase air tightness |
| 04/22/1997 | US5622487 Scroll compressor having a separate stationary wrap element secured to a frame |
| 04/16/1997 | EP0768465A1 Gas compressor |
| 04/16/1997 | EP0768464A2 Scroll compressor |
| 04/10/1997 | WO1997013070A1 Rotary compressor and refrigeration unit provided with the same |
| 04/09/1997 | EP0766790A1 Rotary displacement compressor with liquid circulation system |
| 04/08/1997 | US5618164 Liquid ring compressor with plural after-cooler elements |
| 04/03/1997 | WO1997012148A1 Rotary compressor |
| 04/02/1997 | CN2251057Y Anti-stripping device for screw pump |
| 04/01/1997 | US5616018 Oil supplying apparatus for a horizontal type rotary compressor |
| 04/01/1997 | US5616017 Rotary compressor having a cylinder portion formed of a valve sheet |
| 04/01/1997 | US5616016 Pressure biased co-rotational scroll apparatus with enhanced lubrication |
| 04/01/1997 | US5616015 High displacement rate, scroll-type, fluid handling apparatus |
| 03/27/1997 | WO1997011277A1 Rotary vane pump |
| 03/25/1997 | US5613615 Venting cap for masking |
| 03/19/1997 | EP0763659A2 Vane pump |
| 03/18/1997 | US5611659 Method and a device for reducing the gap between a static part and a movable part |
| 03/18/1997 | CA2062274C Scroll type compressor with improved lubricating arrangement for movable parts thereof |
| 03/13/1997 | WO1997009534A1 High-pressure dome type compressor |
| 03/12/1997 | EP0761975A1 Gas compressor |
| 03/12/1997 | EP0761974A1 Screw-type compressor |
| 03/12/1997 | EP0761973A2 Gas compressor |
| 03/12/1997 | EP0761972A1 Vane compressor having reduced pressure pulses |
| 03/12/1997 | EP0761969A1 Screw pump |
| 03/12/1997 | CN1144886A Liquid compressor |
| 03/12/1997 | CN1144885A Scroll compressor |
| 03/12/1997 | CN1144883A Sealing compressor |
| 03/11/1997 | US5609478 Radial compliance mechanism for corotating scroll apparatus |
| 03/06/1997 | DE19532551A1 Compresses air blower |
| 03/05/1997 | EP0541801B1 Rotary compressor |
| 03/04/1997 | US5607291 Closed compressor |
| 03/04/1997 | US5607288 Scroll machine with reverse rotation protection |
| 02/25/1997 | US5605450 Non-contact vane-type fluid displacement machine with multiple discharge valving arrangement |
| 02/25/1997 | US5605447 Noise reduction in a hermetic rotary compressor |
| 02/19/1997 | CN1143166A Vacuum pump |
| 02/12/1997 | EP0758055A1 Apparatus and method for electronically controlling inlet flow and preventing backflow in a compressor |
| 02/12/1997 | EP0758054A1 Oil circulation system for screw compressors |
| 02/12/1997 | CN1142575A Muffler device of compressor |
| 02/11/1997 | US5601118 Discharge valve apparatus of compressor |
| 02/06/1997 | WO1997004236A1 Oil-sealed vane-type rotary vacuum pump with oil feed |
| 02/06/1997 | WO1997004235A1 Oil-sealed vane-type rotary vacuum pump with an oil pump |
| 02/05/1997 | EP0699276B1 Pumping process for operating a multi-phase screw pump and pump |
| 02/05/1997 | CN1142016A Vortex type fluid machinery |
| 02/04/1997 | US5599178 Scroll-type compressor having fastening bolts for the fixed scroll |
| 01/29/1997 | EP0756088A2 Scroll compressor |
| 01/29/1997 | EP0756087A1 Scroll type compressor |
| 01/29/1997 | EP0756086A1 Scroll type compressor |
| 01/29/1997 | EP0755873A2 Vented cap |
| 01/29/1997 | CN1141394A Scroll compressor |
| 01/28/1997 | US5597297 Scroll type compressor |
| 01/28/1997 | US5597296 Scroll compressor having a check valve received in a stationary scroll member recess |
| 01/28/1997 | US5597293 Counterweight drag eliminator |
| 01/23/1997 | DE19526321A1 Ölgedichtete Drehschiebervakuumpumpe mit Ölpumpe Oil sealed rotary vane vacuum pump with oil pump |
| 01/23/1997 | DE19526303A1 Ölgedichtete Drehschiebervakuumpumpe mit einer Ölversorgung Oil sealed rotary vane vacuum pump with an oil supply |
| 01/22/1997 | EP0754861A2 Scroll compressor with liquid injection |
| 01/22/1997 | CN1141070A Oil separation and bearing lubrication in a high side co-rotating scroll compressor |
| 01/22/1997 | CN1140805A Rotary vane type hydraulic machines |
| 01/22/1997 | CN1140803A Scroll compressor having suction check valve |
| 01/22/1997 | CN1140802A 涡旋式压缩机 Scroll compressor |
| 01/22/1997 | CN1140794A Mufflers with integral check valve |
| 01/22/1997 | CN1033873C An oil pump for a closed type compressor |
| 01/14/1997 | US5593297 Scroll type compressor |
| 01/14/1997 | US5593294 Powered work producing apparatus |
| 01/09/1997 | WO1997001038A1 Multistage, screw-spindle compressor |
| 01/09/1997 | WO1997001037A1 Vacuum pump |
| 01/08/1997 | EP0752533A1 Spiral compressor |
| 01/08/1997 | EP0752532A1 Rotary compressor and refrigerating apparatus |
| 01/07/1997 | US5591018 Hermetic scroll compressor having a pumped fluid motor cooling means and an oil collection pan |
| 01/07/1997 | US5591014 Scroll machine with reverse rotation protection |
| 01/07/1997 | CA2099150C Scroll compressor lubrication control |