| 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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| 07/14/1992 | CA1305075C Sound attenuating liquid-gas separator |
| 07/02/1992 | DE4042177A1 Rotary piston pump for lubricator - uses atomised lubricant spray for even cooling e.g. via valve plate |
| 07/01/1992 | EP0492759A2 Non-orbiting scroll mounting arrangements for a scroll machine |
| 07/01/1992 | EP0492332A1 Vacuum pump with injection of dry gas |
| 06/30/1992 | US5126196 Protective device for a hermetic motor-driven compressor |
| 06/30/1992 | US5125811 Sintered iron-base alloy vane for compressors |
| 06/28/1992 | WO1992012347A1 Oil recovery system for low capacity operation of refrigeration systems |
| 06/28/1992 | CA2076536A1 Oil recovery system for low capacity operation of refrigeration systems |
| 06/25/1992 | DE4141396A1 Spiral displacement machine or loader - has displacer eccentrically circulating in housing, with displacer and housing having spiral engaging blades |
| 06/25/1992 | DE4041439A1 Multi-chamber pressure noise damper - has chambers acting as resonators, formed as single or double half shells, with cover and floor plates of cast material |
| 06/24/1992 | EP0491222A1 Excentric shaft |
| 06/23/1992 | US5123822 Screw compressor with spacer to prevent movement of volume adjusting valve |
| 06/23/1992 | US5123818 Rolling rotor motor driven scroll compressor |
| 06/16/1992 | US5122035 Liquid ring compressor |
| 06/16/1992 | CA1303579C Compressor with improved exposed outboard thrust plate and method ofassembly |
| 06/11/1992 | WO1992009807A1 Fluid jetting type screw compressor |
| 06/09/1992 | US5120208 Molecular drag pump with rotors moving in same direction |
| 06/09/1992 | US5120207 Rotary screw compressor with inlet chamber |
| 06/09/1992 | US5120205 Scroll type compressor with improved bearing arrangement for drive shaft |
| 06/04/1992 | DE4038872A1 Air-cooled rotary exhauster or compressor - incorporates two=part sound dampening cowl leaving intervening space surrounding compressor housing |
| 06/02/1992 | US5118268 Trapped volume vent means with restricted flow passages for meshing lobes of roots-type supercharger |
| 05/27/1992 | EP0486726A1 Liquid ring pump |
| 05/21/1992 | DE4036698A1 Cooling system for rotary piston pump - uses evaporation of fluid injected int compression chamber |
| 05/19/1992 | US5114322 Scroll-type machine having an inlet port baffle |
| 05/14/1992 | WO1992008053A1 Silencer unit |
| 05/14/1992 | DE4035464A1 Suction gas-lubricated vane, cell compressor - has cylindrical rotor in housing chamber and with rotor face wall rotating past housing side walls with limited clearance |
| 05/13/1992 | EP0484885A2 Screw type pump |
| 05/12/1992 | US5112201 Scroll compressor apparatus with separate oil reservoir vessel |
| 05/12/1992 | US5111712 Rolling element radial compliancy mechanism |
| 05/06/1992 | CN2103672U Rotary compressor lubricating system |
| 05/05/1992 | US5110273 Scroll-type fluid machine with an improved journal bearing |
| 05/05/1992 | US5110268 Lubricant supply system of a scroll fluid machine |
| 04/30/1992 | DE4034253A1 Rotary vacuum pump - has silencer which can be easily attached or removed |
| 04/30/1992 | DE4033751A1 Oil separator for oil-lubricated vacuum pumps - has bottom-less housing contg. packing with blow-off pipe and duct with collector part at bottom etc. |
| 04/29/1992 | EP0482592A1 Compressor capacity control method and apparatus therefor |
| 04/29/1992 | CN1060699A Scroll machine with floating seal |
| 04/28/1992 | US5108269 Method of controlling a rotary compressor |
| 04/23/1992 | DE4134844A1 Side block construction for vane cell compressor - has arrangement for making hole from two matching parts |
| 04/23/1992 | DE4033456A1 Valve arrangement for rotary piston compressor - has thin walled section in valve housing |
| 04/23/1992 | DE4033420A1 Pressure valve for rotary piston compressor - uses valve element sleeve with axial and circumferential grooves |
| 04/22/1992 | CN1060514A Counterweight shield for refrigeration compressor |
| 04/15/1992 | EP0480560A2 Scroll machine with overheating protection |
| 04/15/1992 | EP0480065A1 Scroll compressor |
| 04/15/1992 | CN1016260B Fluid compressor |
| 04/15/1992 | CN1016259B 涡旋式压缩机 Scroll compressor |
| 04/14/1992 | US5104302 Scroll compressor including drive pin and roller assembly having sliding wedge member |
| 04/14/1992 | US5104297 Rotary compressor having an eccentric pin with reduced axial dimension |
| 04/14/1992 | US5103652 Scroll compressor and scroll-type refrigerator |
| 04/08/1992 | EP0479421A1 Scroll machine with floating seal |
| 04/08/1992 | EP0479413A1 Counterweight shield for refrigeration compressor |
| 04/08/1992 | EP0478939A2 Two-stage rotary compressor for refrigerating plants |
| 04/08/1992 | EP0478795A1 Scroll compressor |
| 04/08/1992 | CN2101126U Refrigerator compressor heat relewasing deivce |
| 04/07/1992 | US5102317 Two-cylinder-type rotary compressor system having improved suction pipe coupling structure |
| 04/07/1992 | US5102316 Non-orbiting scroll mounting arrangements for a scroll machine |
| 04/07/1992 | US5101644 Co-rotational scroll apparatus with positive lubricant flow |
| 04/01/1992 | EP0478378A2 Check valve for compressor |
| 03/31/1992 | US5100302 Quick disassembly system for rotary vacuum pumps |
| 03/31/1992 | US5099976 Fire extinguishing apparatus for compressors |
| 03/25/1992 | EP0476631A1 Multistage vacuum pump |
| 03/24/1992 | US5098266 Lubrication of a horizontal rotary compressor |
| 03/18/1992 | EP0475538A1 Scroll type fluid machinery |
| 03/18/1992 | CN1059584A Scroll-type fluid machinery |
| 03/17/1992 | US5096399 Rotor pair for high pressure screw compressor and screw compressor using same |
| 03/17/1992 | US5096387 Vane compressor with means for obtaining sufficient back pressure upon vanes at the start of compressor |
| 03/17/1992 | CA1297460C Compact scroll-type fluid compressor |
| 03/10/1992 | US5094598 Capacity controllable compressor apparatus |
| 03/10/1992 | US5094592 Variable capacity vane compressor having a seal protective structure |
| 03/10/1992 | US5094205 Scroll-type engine |
| 03/10/1992 | US5094085 Refrigerating cycle apparatus with a compressor having simultaneously driven two compressor means |
| 03/04/1992 | EP0472933A2 Fluid rotating apparatus |
| 03/04/1992 | CN2097911U Noise-reducing device for refrigerator compressor exhaust pipe |
| 03/04/1992 | CN1059189A Compressor |
| 03/03/1992 | US5093864 Silencer |
| 03/03/1992 | US5092747 Fluid compressing apparatus having bearing gap |
| 02/25/1992 | US5090883 Fuel supply assembly for a motor vehicle |
| 02/25/1992 | US5090880 Scroll compressor with discharge valves |
| 02/25/1992 | US5090879 Recirculating rotary gas compressor |
| 02/25/1992 | US5090878 Non-circular orbiting scroll for optimizing axial compliancy |
| 02/25/1992 | US5090876 Scroll type fluid handling machine |
| 02/25/1992 | US5090875 Fluid compressor |
| 02/25/1992 | US5090874 Fluid compressor |
| 02/20/1992 | DE4026669C1 Mechanical vacuum pump - has cylindrical bore in housing with parallel inlet and outlet lines and rotor with spring-loaded vanes |
| 02/18/1992 | US5088905 Check valve for scroll compressor |
| 02/11/1992 | US5087178 Oil flooded screw compressor system with moisture separation and heated air dryer regeneration, and method |
| 02/11/1992 | US5087170 Rotary compressor |
| 02/11/1992 | US5086621 Oil recovery system for low capacity operation of refrigeration systems |
| 02/05/1992 | EP0469700A1 Scroll machine lubrication system |
| 02/04/1992 | CA1295303C Compressor with axially balanced shaft |
| 01/30/1992 | DE4023835A1 Dosage arrangement for liq. fed by differential pressure - has dosage cylinder contg. light membrane dividing it into variable vol. chambers |
| 01/28/1992 | US5083907 Roots-type blower with improved inlet |
| 01/22/1992 | EP0467492A1 Compressor |
| 01/22/1992 | EP0467342A1 Scroll type compressor |
| 01/22/1992 | EP0467011A1 Liquid ring pump with magnetic coupling |
| 01/21/1992 | US5082431 Mechanical scavenging system for single screw compressors |
| 01/21/1992 | US5082427 Screw compressing apparatus, rotor temperature control apparatus for screw compressing apparatus and operating control apparatus for screw compressing apparatus |
| 01/15/1992 | EP0465799A2 Rotary compressor for refrigerating gas and related procedure |
| 01/15/1992 | CN1015304B Fluid compression engine |
| 01/14/1992 | US5080562 Annular rolling rotor motor compressor with dual wipers |
| 01/09/1992 | DE4021683A1 Transporting granular material by compressed air - involves turbocharger connected to air-compressor inlet |