| Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462) |
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| 03/10/1993 | CN1069781A Method for making composite alumiaum article |
| 03/10/1993 | CA2077844A1 Torsional vane spring |
| 03/09/1993 | US5192202 Scroll-type compressor with an apparatus for restraining compressed fluid from being leaked |
| 03/09/1993 | US5192199 Machine for a gaseous medium |
| 03/09/1993 | US5192195 Scroll type compressor with separate control block |
| 03/04/1993 | WO1993004286A1 Capacity control for screw compressors |
| 03/03/1993 | EP0529754A1 Fluid pump and rotary machine having said fluid pump |
| 03/03/1993 | EP0529660A1 Two-stage scroll compressor |
| 03/03/1993 | CN2127748Y Sliding-vane gas compressor |
| 03/03/1993 | CN2127747Y Helical-lobe gas compressor |
| 03/03/1993 | CN1019994C Scroll type fluid machinery |
| 02/23/1993 | US5188524 Pivoting vane rotary compressor |
| 02/23/1993 | US5188521 Scroll compressor with reduced vibration resulting from the oldham's ring |
| 02/23/1993 | US5188520 Scroll type compressor with frames supporting the crankshaft |
| 02/18/1993 | DE4127175A1 Roots twin-rotor vacuum pump - has elongated outlet with edges at slight angle to piston axes |
| 02/17/1993 | CN2127123Y Adjustable gas rotary slice pump |
| 02/17/1993 | CN2127122Y Quadric envelope surface rotary air compressing device |
| 02/16/1993 | US5186616 Scroll type fluid machinery with reduced pressure biasing the stationary scroll |
| 02/16/1993 | US5186546 Self-aligning bearing and closed-type electrically driven compressor having the same |
| 02/10/1993 | CN1068875A Rotary triangle piston compressing technique |
| 02/09/1993 | US5184940 Fluid compressor |
| 02/09/1993 | US5184455 Method of restricting cooling air flow |
| 02/04/1993 | DE4125464A1 Two-axis rotary piston blower - has profiling of piston rotors chosen to give optimal sealing surfaces |
| 02/02/1993 | US5183395 Compressor slide valve control |
| 01/27/1993 | CN1068398A Curved-gear oilpump |
| 01/26/1993 | US5181843 Internally constrained vane compressor |
| 01/20/1993 | EP0523551A1 Screw vacuum pump |
| 01/20/1993 | EP0523550A1 Screw vacuum pump |
| 01/19/1993 | CA1312781C Rotary valve plate for internal gear device |
| 01/13/1993 | EP0522531A1 Rotary compressor |
| 01/12/1993 | US5178527 Lubricating apparatus for scroll-type compressor |
| 01/12/1993 | US5178526 Coupling mechanism for co-orbiting scroll members |
| 01/07/1993 | EP0521235A2 Method and apparatus for machining scroll wraps |
| 01/05/1993 | US5176506 Vented compressor lubrication system |
| 01/05/1993 | US5176505 Oil-cooled compressor |
| 01/05/1993 | CA1312319C Screw rotor mechanism with thermal, safety and coating sensitive fit |
| 12/30/1992 | EP0520517A1 Housing for hermetic motor compressor |
| 12/30/1992 | EP0520487A1 Scroll-type fluid machinery |
| 12/30/1992 | EP0520431A2 Scroll type compressor |
| 12/30/1992 | CN1067485A Scroll type compressor with improved lubricating arrangement for movable parts thereof |
| 12/29/1992 | US5174740 For circulating a fluid |
| 12/29/1992 | US5174739 Scroll-type compressor with eccentricity adjusting bushing |
| 12/29/1992 | US5174738 Slider block for a scroll compressor having edge loading relief under load |
| 12/29/1992 | US5174737 Fluid compressor with spiral blade |
| 12/29/1992 | US5174736 Scroll-type compressor with cover member for suction and discharge cavities |
| 12/25/1992 | CA2059694A1 Method and apparatus for machining scroll wraps |
| 12/23/1992 | EP0519580A2 Rotary compressor |
| 12/23/1992 | EP0519276A1 Supercharger carry-over venting means |
| 12/23/1992 | EP0377730B1 Scroll fluid device using flexible toothed ring synchronizer |
| 12/23/1992 | EP0349574B1 Screw rotor machine |
| 12/22/1992 | USRE34148 Scroll type compressor with variable displacement mechanism |
| 12/22/1992 | US5173042 Scroll compressor and discharge valve |
| 12/22/1992 | CA1311730C Scroll apparatus with pressure regulation |
| 12/22/1992 | CA1311729C Scroll machine with plural pressurized seal enhancing chambers and static vane mounts |
| 12/22/1992 | CA1311728C Scroll compressor with normally warped open exhaust valve |
| 12/17/1992 | DE4215513A1 Pump for delivering and-or compressing fluids - has rotating spiral scroll centre of gravity between drive shaft bearings |
| 12/16/1992 | CN1019522B Fluid compressor |
| 12/15/1992 | US5171141 Scroll compressor with distal ends of the wraps having sliding contact on curved portions |
| 12/15/1992 | US5171140 Spiral displacement machine with angularly offset spiral vanes |
| 12/15/1992 | CA1311456C Rotary scroll machine with radial clearance control and method of manufacturing |
| 12/15/1992 | CA1311455C Axial sealing mechanism for a scroll compressor |
| 12/15/1992 | CA1311454C Fluid displacement apparatus |
| 12/10/1992 | DE4118934A1 Valve system for vane cell compressor - has valve seat in face of stroke ring and hole in ring wall as fluid outlet |
| 12/09/1992 | EP0517250A1 Single-screw compressor rotor construction |
| 12/08/1992 | US5169298 Constrained vane compressor with oil skive |
| 12/08/1992 | US5169294 Pressure ratio responsive unloader |
| 12/02/1992 | EP0515929A1 Vane vacuum pump |
| 12/02/1992 | CN2123626U Spiral compressor |
| 12/02/1992 | CN1066714A 封闭式涡卷压缩机 Closed scroll compressor |
| 12/01/1992 | WO1992021881A1 Rotary compressor |
| 12/01/1992 | US5167496 Screw compressor with fluid bearings |
| 12/01/1992 | US5167494 Scroll type compressor with axially supported movable scroll |
| 12/01/1992 | US5167491 High to low side bypass to prevent reverse rotation |
| 11/26/1992 | WO1992020924A1 A rotary displacement compressor and a method for regulating a rotary displacement compressor |
| 11/25/1992 | CN2122951U Multi-functional aerator |
| 11/24/1992 | US5165878 Scroll type compressor with slide guide for preventing rotation of the moveable scroll |
| 11/19/1992 | EP0514040A1 Rotors for mechanically-driven superchargers |
| 11/19/1992 | EP0513827A1 Scroll type fluid displacement apparatus having a capacity control mechanism |
| 11/19/1992 | EP0513212A1 Rotary screw machine having thrust balancing means. |
| 11/17/1992 | US5163827 Axial flow fluid compressor with specific blade dimensions |
| 11/12/1992 | DE4214613A1 Spiralverdraengermaschine Spiralverdraengermaschine |
| 11/11/1992 | EP0512532A1 Fluid compressor |
| 11/05/1992 | DE4114618A1 Internal vol. ratio variation device for screw compressor - selects optimal ratio before measuring displacement of control slider and suppresses valve operation commands from power regulator |
| 11/04/1992 | CN1065907A Scroll-type compressor, scroll member and method and apparatus for macerating-plating thereof |
| 11/03/1992 | US5160253 Scroll type fluid apparatus having sealing member in recess forming suction space |
| 10/29/1992 | WO1992018772A1 Rotary compressor |
| 10/28/1992 | EP0510782A1 Scroll type compressor |
| 10/28/1992 | EP0510402A2 Orbiting rotary compressor |
| 10/28/1992 | CN1065706A Rotary sectorial piston type comprssion engine |
| 10/28/1992 | CN1018853B 致冷压缩机 Refrigeration compressor |
| 10/20/1992 | US5156539 Scroll machine with floating seal |
| 10/20/1992 | US5156532 Rotary vane vacuum pump with shaft seal |
| 10/20/1992 | CA1309126C Enclosed type electric compressor |
| 10/20/1992 | CA1309070C Scroll compressor |
| 10/14/1992 | EP0508426A2 Highly ductile sintered aluminum alloy, method for production thereof and use thereof |
| 10/14/1992 | EP0508293A1 Scroll type compressor with injection mechanism |
| 10/13/1992 | US5154592 Scroll type fluid apparatus with rotation restraining mechanism |
| 10/06/1992 | US5152684 Rotor profile for a roots vacuum pump |
| 10/06/1992 | US5152156 Rotary compressor having a plurality of cylinder chambers partitioned by intermediate partition plate |
| 10/06/1992 | CA1308403C Scroll type compressor |