| 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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| 03/09/1994 | EP0585911A1 Two stage primary dry pump |
| 03/09/1994 | CN1083569A Fluid compressor |
| 03/03/1994 | DE4327994A1 Vane cell compressor assembly - has rotor with grooves containing blades, positioned so that blade tips do not project into intake apertures |
| 03/03/1994 | DE4322827A1 Fluid compressor for compression of cooling gas in cooling cycle - has cylinder with discharge ends and internal rotary body with spiral grooves containing spiral plates |
| 03/02/1994 | EP0584466A2 Scroll compressor lubrication control |
| 03/02/1994 | EP0584177A1 A rotary displacement compressor and a method for regulating a rotary displacement compressor. |
| 03/01/1994 | US5290161 Control system for a clutchless scroll type fluid material handling machine |
| 02/15/1994 | US5286174 Fluid compression device |
| 02/09/1994 | EP0582185A1 Multi-stage screw vacuum pump |
| 02/08/1994 | CA2090390A1 Fail safe mechanical oil shutoff arrangement for screw compressor |
| 02/01/1994 | US5282729 Radical actuator for a de-orbiting scroll in a scroll type fluid handling machine |
| 02/01/1994 | US5282728 Inertial balance system for a de-orbiting scroll in a scroll type fluid handling machine |
| 01/26/1994 | EP0579888A1 Rotating scroll pump |
| 01/25/1994 | US5281116 Rotary blower |
| 01/19/1994 | EP0579374A1 Scroll compressor with liquid injection |
| 01/19/1994 | EP0578890A1 Scroll compressor with discharge diffuser |
| 01/19/1994 | CN1080981A A horizontal hermetic compressor |
| 01/19/1994 | CN1080979A Rotary compressor with closing |
| 01/12/1994 | CN1080696A Sealed electric compressor with two cylinders and process for assembling of same |
| 01/11/1994 | US5277564 Closed type scroll compressor with spherical slide bearing for the oil tube |
| 01/11/1994 | US5277563 Scroll compressor with axial sealing apparatus |
| 01/11/1994 | US5277562 Scroll fluid machine and producing method for the same |
| 12/28/1993 | US5273412 Lubricated rotary compressor having a cooling medium inlet to the delivery port |
| 12/28/1993 | US5273409 Compressor assembly including an electromagnetically triggered pressure actuated internal clutch |
| 12/28/1993 | US5272930 Mechanical element having a shaft pressure-fitted into an engaging member and its manufacturing method |
| 12/22/1993 | EP0574442A1 Device for supplying a multi-stage dry-running vacuum pump with inert gas. |
| 12/21/1993 | US5271719 Fluid rotating apparatus and method of controlling the same |
| 12/15/1993 | EP0574104A1 A horizontal hermetic compressor |
| 12/14/1993 | US5269667 Removabe discharge port plate for a compressor |
| 12/08/1993 | EP0573063A1 Bearing lubricating structure for rotary machinery |
| 12/02/1993 | DE4218299A1 High capacity refrigeration appts. for deep-freezing, air-conditioning or building heating - uses air as working medium compressed nearly isothermally and comprises continuously working rotating machines for delivering large vol. flows, e.g. with screws for compressing refrigerant vapour |
| 11/30/1993 | US5265457 Method of forming an oil groove on the end surface of a rotor of an aluminum alloy |
| 11/25/1993 | WO1993023659A1 Arrangement of internal combustion engines provided with a supercharger and a fuel injection system |
| 11/25/1993 | DE4214960C1 Flüssigkeitsringmaschine Liquid ring machine |
| 11/24/1993 | EP0571315A1 Cooling of a hermetic motor-compressor unit |
| 11/24/1993 | CN1078792A Scroll compressor and air conditioner using the same |
| 11/24/1993 | CN1022853C Compressor |
| 11/23/1993 | US5263832 Air-cooled oil-free screw compressor |
| 11/23/1993 | US5263822 Scroll compressor with lubrication passages to the main bearing, revolving bearing, back-pressure chamber and compression chambers |
| 11/16/1993 | US5261802 Screw vacuum pump |
| 11/16/1993 | CA1324291C Rotary vane oil pump and method of operating |
| 11/11/1993 | WO1993022562A1 Liquid ring machine |
| 11/10/1993 | EP0569119A1 Rotary compressor |
| 11/10/1993 | EP0404921B1 Rotor pair for a high-pressure screw-type compressor |
| 11/09/1993 | US5259740 Rotary compressor |
| 11/02/1993 | US5257920 Scroll type compressor having a centered opening to a high pressure chamber |
| 10/28/1993 | DE4213330A1 Noise-damped vane cell pump - uses interconnection channels between pump chambers tuned to interference frequency |
| 10/26/1993 | US5256042 Bearing and lubrication system for a scroll fluid device |
| 10/19/1993 | US5253489 Scroll type compressor with injection mechanism |
| 10/19/1993 | US5253481 Control unit for activating compressor |
| 10/14/1993 | WO1993020333A1 Liquid-ring machine |
| 10/07/1993 | DE4310621A1 Rotating piston machine for compression of gaseous mediums - has intake and discharge sockets relatively offset on housing parallel to rotor axis |
| 10/05/1993 | US5249943 Scroll type compressor having recessed buffer means in a spiral wrap flat face |
| 10/05/1993 | US5249941 Scroll type fluid machine having intermittent oil feed to working chamber |
| 10/05/1993 | US5249940 Scroll compressor having a magnet pressing the moving scroll member axially |
| 09/30/1993 | WO1993019298A1 Method of operating an oil-sealed vacuum pump |
| 09/30/1993 | WO1993019295A1 Scroll machine with overheating protection |
| 09/28/1993 | US5247738 Method for assembling motor driven fluid compressor |
| 09/28/1993 | US5247736 Method of manufacturing a multipiece eccentric shaft |
| 09/28/1993 | CA1322454C Air conditioner equipped with scroll type compressor |
| 09/21/1993 | US5246357 Screw compressor with oil-gas separation means |
| 09/21/1993 | US5246356 Sound abatement in rotary compressors |
| 09/21/1993 | US5246349 Variable reluctance electric motor driven vacuum pump |
| 09/16/1993 | WO1993018280A1 Screw compressor providing thrust bearing force compensation |
| 09/16/1993 | DE4208194A1 Verfahren zum betrieb einer oelgedichteten vakuumpumpe sowie fuer die durchfuehrung dieses verfahrens geeignete vakuumpumpe A method of operating a oelgedichteten vacuum pump and for the implementation of this method suitable vacuum pump |
| 09/16/1993 | DE4207817A1 Pneumatic rotary drive with pressure-tight pressure chamber - has rotor with hollow cylindrical body and single rotary vane. |
| 09/15/1993 | CN2142151Y Intake muffling & cleaning combined apparatus for air compressor |
| 09/14/1993 | US5244353 Gas pumping installation having means for regulating its pumping speed |
| 09/14/1993 | US5243827 Overheat preventing method for prescribed displacement type compressor and apparatus for the same |
| 09/08/1993 | EP0558921A1 Synchronous rotating apparatus of plurality of shafts |
| 09/07/1993 | US5242282 Scroll compressor with a driving pin between scrolls and a sliding shaft bearing |
| 09/07/1993 | US5242280 Rotary type multi-stage compressor with vanes biased by oil pressure |
| 09/02/1993 | WO1993017241A1 Bearing and lubrication system for a scroll fluid device |
| 09/02/1993 | WO1993017222A1 Compliance mounting mechanism for scroll fluid device |
| 09/02/1993 | DE4305876A1 Spiral compressor with anti-spin mechanism - uses counter mass with cylindrical depression to balance rotating spiral element |
| 09/02/1993 | DE4305289A1 Bearing for high speed shaft in screw compressor - has sets of inclined ball bearings with different contact angles |
| 09/01/1993 | EP0557598A1 Scroll type fluid machinery |
| 08/31/1993 | US5240392 Scroll type compressor with oil-separating plate in discharge chamber |
| 08/31/1993 | US5240391 Compressor suction inlet duct |
| 08/31/1993 | US5240387 Variable capacity vane compressor having an improved bearing arrangement for a drive shaft and a capacity control element |
| 08/31/1993 | US5239865 Process for monitoring the coolant level in a cooling system |
| 08/25/1993 | EP0557023A1 Scroll type compressor with variable displacement mechanism |
| 08/25/1993 | EP0556746A2 Vane type gas compressor |
| 08/24/1993 | CA1321570C Scroll type compressor |
| 08/24/1993 | CA1321569C Scroll compressor with spring biassed counterweight |
| 08/19/1993 | WO1993016283A1 Separator vessel |
| 08/17/1993 | US5236320 Oil injection type screw compressor |
| 08/17/1993 | US5236318 Orbiting rotary compressor with adjustable eccentric |
| 08/17/1993 | US5236313 Rotary-type vacuum pump |
| 08/12/1993 | DE4203619A1 Combined axial piston pump and electric motor unit - incorporates noise curbing elements between flanges of pump support block attached to motor |
| 08/11/1993 | EP0555173A1 A pump |
| 08/10/1993 | US5234323 Fluid positive displacement machine with gas injection in the discharge region |
| 08/05/1993 | WO1993015320A1 Scroll compressor |
| 08/05/1993 | WO1993015319A1 Vane of compressor made of sintered iron alloy |
| 08/03/1993 | US5232355 Scroll-type fluid apparatus having a labyrinth and oil seals surrounding a scroll shaft |
| 08/03/1993 | CA1320936C Oil turbulence minimizer for a hermetic compressor |
| 07/27/1993 | US5230616 Rotary compressor with shaft balancers |
| 07/27/1993 | US5230275 Eccentric anti-friction drive for fluid power apparatus |
| 07/20/1993 | US5228845 External shaft bearing assembly |
| 07/14/1993 | EP0446221B1 Cellular blower |