| 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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| 09/13/1994 | CA2060807C Scroll compressor including drive pin and roller assembly having sliding wedge member |
| 09/07/1994 | EP0614012A1 Scroll type positive displacement machine |
| 08/30/1994 | US5342184 Scroll machine sound attenuation |
| 08/30/1994 | US5342183 Scroll compressor with discharge diffuser |
| 08/30/1994 | US5341658 Fail safe mechanical oil shutoff arrangement for screw compressor |
| 08/30/1994 | CA1331750C Scroll type compressor |
| 08/23/1994 | US5340292 Scroll compressor with relief port for reduction of vibration and noise |
| 08/23/1994 | US5340287 Scroll-type compressor having a plate preventing excess lift of the crankshaft |
| 08/17/1994 | EP0574442B1 Device for supplying a multi-stage dry-running vacuum pump with inert gas |
| 08/16/1994 | US5338167 Dry-running vacuum pump |
| 08/16/1994 | US5338159 Co-rotational scroll compressor supercharger device |
| 08/16/1994 | CA2053107C Bracket for mounting a crankcase heater |
| 08/11/1994 | DE4404054A1 Refrigerant spiral compressor with casing protection devices |
| 08/09/1994 | US5336069 Rotary piston fluid pump |
| 08/09/1994 | US5336068 Scroll-type fluid machine having the eccentric shaft inserted into the moving scroll |
| 08/09/1994 | US5336058 Scroll-type compressor with variable displacement mechanism |
| 08/03/1994 | EP0608811A1 Supercharger vent |
| 08/03/1994 | EP0608311A1 Inlet control combination for a compressor system |
| 07/28/1994 | DE4301560A1 Fluid-ring vacuum pump with pressure compensation device |
| 07/27/1994 | EP0608073A1 Scroll compressor having high temperature control |
| 07/26/1994 | US5332371 Hydraulic system |
| 07/26/1994 | CA2049878C Scroll apparatus with enhanced lubricant flow |
| 07/26/1994 | CA1330976C Rotary compressor gas routing for muffler system |
| 07/21/1994 | DE3744760C2 Compacting machine compressing fluid e.g. refrigeration compressor |
| 07/20/1994 | EP0607012A2 Compressor |
| 07/20/1994 | EP0606965A1 Method and arrangement for eliminating small quantities of leaking lubricant and cooling liquid |
| 07/19/1994 | US5330335 Horizontally oriented rotary machine having internal lubication oil pump |
| 07/19/1994 | US5329788 Scroll compressor with liquid injection |
| 07/12/1994 | US5328344 Enclosed type rotary compressor |
| 07/12/1994 | US5328342 Scroll compressor with slider contacting an elastic member |
| 07/05/1994 | US5326239 Fluid compressor having a horizontal rotation axis |
| 07/05/1994 | US5326233 Enclosed motor compressor of a two cylinder type |
| 06/30/1994 | DE4243793A1 Stage lubrication for multistage vacuum pumps |
| 06/29/1994 | EP0603698A1 Rolling piston vacuum pump |
| 06/28/1994 | CA2051733C Co-rotational scroll apparatus with positive lubricant flow |
| 06/22/1994 | EP0602143A1 Rotor for a screw rotor machine. |
| 06/21/1994 | US5322427 Rotary-blade air conditioner compressor for heavy-duty vehicle |
| 06/21/1994 | US5322421 Cooling arrangement for magnetic couplings in pumps |
| 06/21/1994 | US5322420 Horizontal rotary compressor |
| 06/21/1994 | CA1330262C Compressor mounting apparatus |
| 06/16/1994 | DE4243430A1 Screw compressor with hydraulic load control - uses sliding control valve attached to piston in cylinder and function plate with oil passages |
| 06/15/1994 | EP0601960A1 Lubrication system for horizontal rotary compressor |
| 06/15/1994 | EP0601958A1 Sound abatement in rotary compressors |
| 06/15/1994 | EP0601789A1 Scroll machine with reverse rotation protection |
| 06/14/1994 | US5320507 Scroll machine with reverse rotation protection |
| 06/14/1994 | CA1330212C Axial and radial supply bores in a scroll compressor |
| 06/09/1994 | WO1994013053A1 Method of and apparatus for assembling an electric motor capable of using a motor housing having low dimensional precision |
| 06/09/1994 | DE4341148A1 Spiral compressor with seal located along spiral - has centre of delivery opening distance from end of stationary spiral relative to centre of phantom circuit |
| 06/09/1994 | DE4242406A1 Performance improvement device for rotary compressor - has turbocompressor stage at inlet of suction side fixed to secondary rotor shaft and before which is controllable supply |
| 06/08/1994 | EP0600313A1 Lubrication for rotary compressor |
| 06/07/1994 | US5318425 Displacement machine according to the spiral principle |
| 06/07/1994 | US5318411 Compressor with integral filter |
| 06/07/1994 | US5318151 Method and apparatus for regulating a compressor lubrication system |
| 06/01/1994 | EP0599163A1 Liquid ring machine |
| 05/31/1994 | US5316455 Rotary compressor with stabilized rotor |
| 05/31/1994 | US5316454 Fluid pump and rotary machine having said fluid pump |
| 05/26/1994 | DE4239575A1 Sound absorber for pneumatic pump - is separate from pump and connected to it via snap connection and guide pins and bores |
| 05/24/1994 | US5314320 Screw vacuum pump with a reduced starting load |
| 05/24/1994 | US5314318 Horizontal multi-cylinder rotary compressor |
| 05/24/1994 | US5314312 Fluid-rotating apparatus |
| 05/19/1994 | DE4339203A1 Spiral compressor for vehicle cooling system - uses engaging spiral passages in two blocks to compress fluid, with moving block driven eccentrically from shaft |
| 05/19/1994 | DE4338865A1 Spiral compressor with counterweight e.g. for vehicle cooling system - uses engaging spiral passages in two blocks to compress fluid, with moving block driven eccentrically from shaft |
| 05/19/1994 | DE4338771A1 Spiral compressor for fluid or refrigerant - has counter mass with depression to receive end of drive shaft |
| 05/18/1994 | EP0597732A1 Vacuum pump with inlet oil-controlled valve |
| 05/18/1994 | EP0597730A1 Two stage vacuum pump |
| 05/18/1994 | EP0597367A1 Rotary compressor |
| 05/17/1994 | US5312466 Pumping installation for pumping out an enclosure containing gases which are mixed with solid particles or which generate solid condensates or particles |
| 05/17/1994 | US5312235 Apparatus for reducing pressure pulsations |
| 05/17/1994 | US5312234 Scroll compressor formed of three sub-assemblies |
| 05/17/1994 | US5312229 Scroll type compressor having curved bearing surfaces |
| 05/17/1994 | US5312192 Bearing lubricating structure for rotary machinery |
| 05/10/1994 | US5310326 Rotary compressor with improved bore configuration and lubrication system |
| 05/10/1994 | US5310020 Self contained lubricating oil system for a centrifugal compressor |
| 05/05/1994 | DE4336713A1 Spiral compressor for vehicle air conditioning system - uses flanged screw and spring to control bush and weight on eccentric shaft |
| 05/04/1994 | EP0595459A1 Air pump apparatus |
| 05/03/1994 | US5308231 Scroll compressor lubrication |
| 05/03/1994 | CA1329184C Common compression zone access ports for positive displacement compressor |
| 04/28/1994 | WO1994009262A1 Spiral compressor |
| 04/27/1994 | CN1085992A A blade for a rotary compressor |
| 04/26/1994 | US5306128 Discharge valve device of a rotary compressor |
| 04/26/1994 | US5306126 Scroll compressor lubrication control |
| 04/19/1994 | US5304045 Closed type motor-driven compressor, a scroll compressor and a scroll lap machining end mill |
| 04/14/1994 | WO1994008141A1 Method of operating a claw-type vacuum pump, and a claw-type vacuum pump suitable for carrying out the method |
| 04/14/1994 | DE4234055A1 Spiralenkompressor Scroll compressor |
| 04/12/1994 | US5302095 Orbiting rotary compressor with orbiting piston axial and radial compliance |
| 04/12/1994 | US5302089 Fluid rotating apparatus |
| 04/07/1994 | DE4233183A1 Vacuum pump with used oil removal extractor - employs membrane pump and self sealing quick coupling |
| 04/07/1994 | DE4233142A1 Verfahren zum Betrieb einer Klauenvakuumpumpe und für die Durchführung dieses Betriebsverfahrens geeignete Klauenvakuumpumpe Method of operating a claw-type vacuum pump and for the implementation of the operating method suitable claw-type vacuum pump |
| 04/07/1994 | CA2079966A1 Constrained vane compressor with oil skive |
| 04/05/1994 | US5299916 Liquid-ring pump having an outlet means including a noise reducing flexible membrane |
| 03/31/1994 | DE4232119A1 Double shaft vacuum roots pump - has two rotors forming working and control pistons and housing having overflow valve in discharge aperture with excess pressure valves in side parts on pressure socket |
| 03/30/1994 | EP0589667A1 Valved discharge mechanism of a refrigerant compressor |
| 03/30/1994 | EP0589236A2 Orbiting member fluid displacement apparatus with rotation preventing mechanism |
| 03/23/1994 | EP0587843A1 Liquid-ring machine |
| 03/22/1994 | US5295815 Oil inlet feed |
| 03/22/1994 | US5295813 Scroll-compressor having flat driving surfaces |
| 03/22/1994 | US5295812 Electromagnetic clutch and pulley bearing arrangement |
| 03/22/1994 | US5295808 Synchronous rotating type scroll fluid machine |
| 03/22/1994 | US5295798 Fluid rotating apparatus with rotor communicating path |
| 03/22/1994 | US5295788 Rotor assembly for screw pump |