| 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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| 04/08/1998 | CN1037991C Vortex compressor |
| 04/07/1998 | US5735678 Scroll compressor having a separate stationary wrap element secured to a frame |
| 04/01/1998 | EP0833058A1 Rotary compressor |
| 04/01/1998 | EP0833057A2 Scroll compressor |
| 04/01/1998 | EP0832961A2 Refrigerant compressor and cooling apparatus comprising the same |
| 04/01/1998 | CN1177682A Vortex type fluid displacement device with abrasion-resistant plate mechanism |
| 03/31/1998 | US5733107 Lubricant oil separating mechanism for a compressor |
| 03/31/1998 | US5732568 Refrigerating cycle |
| 03/31/1998 | CA2113043C Scroll compressor unloader valve |
| 03/25/1998 | EP0711386B1 Oil-sealed vacuum pump |
| 03/25/1998 | EP0683320B1 Swinging rotary compressor |
| 03/25/1998 | CN1177063A Roots blower |
| 03/25/1998 | CN1177062A Turbine type compressor |
| 03/18/1998 | EP0828941A1 Variable-displacement screw-type compressor |
| 03/18/1998 | EP0828940A1 Worm-drive compressor |
| 03/18/1998 | CN1176350A Scroll-type compressor |
| 03/17/1998 | US5727936 For introducing low pressure gas |
| 03/17/1998 | US5727935 Scroll type fluid machine having a rotatable cylindrical ring on the drive bush |
| 03/17/1998 | US5727933 Pump and flow sensor combination |
| 03/11/1998 | EP0828079A2 Lysholm compressors |
| 03/11/1998 | EP0828078A2 Scroll-type compressor |
| 03/10/1998 | US5724821 In an air conditioning system |
| 03/03/1998 | US5722816 Gas compressor |
| 03/03/1998 | US5722257 Compressor having refrigerant injection ports |
| 02/26/1998 | WO1998007988A1 Dry vacuum machine with shaft passage |
| 02/26/1998 | DE19633651A1 Trockene Vakuummaschine mit Wellendurchführung Dry vacuum machine shaft bushing |
| 02/25/1998 | CN1174594A Refrigerant compressor |
| 02/25/1998 | CN1174297A Rotary compressor |
| 02/25/1998 | CN1174295A Scroll-type refrigerant fluid compressor |
| 02/24/1998 | US5720602 Pressure biased co-rotational scroll apparatus with enhanced lubrication |
| 02/24/1998 | US5720599 Vertical arrangement of a dual heat exchanger/fan assembly with an air compressor |
| 02/18/1998 | CN1173589A Enclosed compressor |
| 02/12/1998 | WO1998005866A1 Drive apparatus, such as a liquid ring machine and a method for driving a drive apparatus, such as transferring fluid |
| 02/11/1998 | EP0823025A1 Screw-type compressor with water hammer protection |
| 02/11/1998 | EP0746732A4 Refrigeration compressor |
| 02/11/1998 | CN2274275Y Back-driven oil pump |
| 02/11/1998 | CN1172910A Fluid machinery |
| 02/11/1998 | CN1172908A Rotary compressor |
| 02/10/1998 | US5716202 Scroll compressor with oiling mechanism |
| 02/04/1998 | EP0822335A2 Scroll compressor |
| 02/04/1998 | CN1172521A Rotary compressor with reduced lubrication sensitivity |
| 02/04/1998 | CN1172216A Compression engine |
| 02/03/1998 | US5713731 Radial compliance mechanism for co-rotating scroll apparatus |
| 01/28/1998 | CN1171497A Member having sliding contact surface, compressor and rotary compressor |
| 01/28/1998 | CN1171496A Rotary compressor |
| 01/21/1998 | EP0820136A2 Power supply circuit for an air conditioner |
| 01/21/1998 | EP0819220A1 Gas flow and lubrication of a scroll compressor |
| 01/21/1998 | CN1171145A Compressor installation |
| 01/21/1998 | CN1170854A Air conditioner |
| 01/21/1998 | CN1170830A Closed compressor |
| 01/21/1998 | CN1170829A Closed rotary compressor |
| 01/21/1998 | CN1170825A Base for closed compressor in out-door machine |
| 01/20/1998 | US5709537 Evacuating apparatus |
| 01/20/1998 | CA1339633C Scroll-type fluid displacement apparatus |
| 01/14/1998 | CN1170089A Compressor for refrigerator |
| 01/14/1998 | CN1170088A Fluid compressor |
| 01/14/1998 | CN1170086A Scroll type fluid displacement apparatus in which manufacturing cost can be decreased |
| 01/13/1998 | US5707223 Rotary screw compressor having a thrust balancing piston device and a method of operation thereof |
| 01/13/1998 | US5707222 Vacuum pump with resilient drive |
| 01/13/1998 | US5706850 Oil diffuser |
| 01/07/1998 | EP0816684A1 Scroll-type refrigerant fluid compressor |
| 01/07/1998 | EP0734609B1 Electric motor, pump and an electric motor/pump unit |
| 01/07/1998 | CN1169511A Gear pump for use in electrically-operated sealed compressor |
| 12/31/1997 | WO1997049918A1 Scroll compressor |
| 12/30/1997 | US5702240 For producing a flow of fluid |
| 12/29/1997 | EP0814267A1 Rotary compressor with water injection and polyalkylene glycol lubricant |
| 12/29/1997 | EP0814266A1 Scroll-type fluid displacement apparatus |
| 12/18/1997 | WO1997047887A1 Displacement machine on the spiral principle |
| 12/18/1997 | DE19623216A1 Verdrängermaschine nach dem Spiralprinzip Displacement after the spiral principle |
| 12/16/1997 | US5697772 Screw rotor and method of generating tooth profile therefor |
| 12/16/1997 | US5697771 Vacuum pump with oil separator |
| 12/16/1997 | US5697763 Tank mounted rotary compressor |
| 12/10/1997 | EP0811767A1 Gear oil pump for hermetic compressor |
| 12/10/1997 | EP0811766A2 Displacement type vacuum pump |
| 12/10/1997 | CN1167522A Rotary compressor |
| 12/09/1997 | US5695327 Sealing, mounting and drive of the rotors of a dry-running screw compressor |
| 12/09/1997 | US5695326 Compressor for a refrigeration machine having a thrust bearing |
| 12/04/1997 | WO1997045642A1 Scroll compressor |
| 12/04/1997 | DE19722688A1 Compressor, e.g. for use in automobile air conditioning |
| 12/03/1997 | EP0810355A1 Vacuum pump assembly for internal combustion engines |
| 11/27/1997 | DE19620480A1 Orbiting motion spiral compressor |
| 11/27/1997 | DE19620477A1 Scroll compressor for refrigeration or cooling |
| 11/26/1997 | EP0809029A2 Compressor |
| 11/26/1997 | EP0808423A1 Rotary compressor with reduced lubrication sensitivity |
| 11/26/1997 | EP0608311B1 Inlet control combination for a compressor system |
| 11/26/1997 | CN1165918A Refrigerating circulation or compressor with foreign matter collector |
| 11/26/1997 | CN1165917A Mfg. method for enclosed shell of sealing compressor as well as sealing compressor |
| 11/25/1997 | US5690480 Scroll compressor with cooling holes in orbiting scroll |
| 11/25/1997 | US5690475 Scroll compressor with overload protection |
| 11/20/1997 | DE19713770A1 Climate control unit for a motor vehicle |
| 11/19/1997 | EP0807209A1 Protection device for a high side co-rotating scroll compressor |
| 11/19/1997 | CN1165249A 油冷式螺旋压缩机 Oil-cooled screw compressor |
| 11/18/1997 | US5688109 Oil-level controller for compressor |
| 11/18/1997 | CA2121207C Speed detector of scroll-type fluid machine |
| 11/12/1997 | EP0806570A1 Scroll type fluid displacement apparatus |
| 11/12/1997 | EP0806569A2 Scroll compressor |
| 11/12/1997 | EP0626040B1 Flooded compressor system utilizing a separator vessel |
| 11/12/1997 | CN1164618A Positive-displacement type fluid machine |
| 11/11/1997 | US5685703 Hermetically sealed rotary compressor having an oil supply passage to the compression compartment |
| 11/11/1997 | US5685163 Refrigerating apparatus |