| 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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| 02/03/1993 | EP0526151A1 Oil lubrication system for horizontal rotary scroll machine |
| 02/03/1993 | EP0525924A1 Liquid injection cooling for vane compressor |
| 02/02/1993 | US5183400 Pipe connection structure of a compressor |
| 02/01/1993 | CA2074882A1 Horizontally oriented rotary machine internal lubrication oil pump |
| 01/21/1993 | WO1993001413A1 Cooling device |
| 01/20/1993 | EP0523551A1 Screw vacuum pump |
| 01/20/1993 | EP0523550A1 Screw vacuum pump |
| 01/19/1993 | US5180295 Scroll compressor Oldham coupling having anti-friction means |
| 01/12/1993 | US5178527 Lubricating apparatus for scroll-type compressor |
| 01/12/1993 | US5178522 Method and apparatus for supplying oil to a vacuum pump |
| 01/12/1993 | US5178183 Compressor discharge valve |
| 01/07/1993 | DE4220659A1 Dispenser for accurate liquid flow dispensing - has dispensing cylinder with movable valve body alternately connected to delivery and outlet channels via rotating shaft channels |
| 01/05/1993 | US5176506 Vented compressor lubrication system |
| 01/05/1993 | US5176505 Oil-cooled compressor |
| 12/30/1992 | EP0520517A1 Housing for hermetic motor compressor |
| 12/30/1992 | EP0520431A2 Scroll type compressor |
| 12/30/1992 | CN2126331U Compressor silencer for refrigerator |
| 12/30/1992 | CN1067485A Scroll type compressor with improved lubricating arrangement for movable parts thereof |
| 12/30/1992 | CN1019675B Vacuum pump |
| 12/29/1992 | US5174741 Liquid injecting type oil-free screw compressor |
| 12/29/1992 | US5174740 For circulating a fluid |
| 12/29/1992 | US5174739 Scroll-type compressor with eccentricity adjusting bushing |
| 12/29/1992 | US5174736 Scroll-type compressor with cover member for suction and discharge cavities |
| 12/23/1992 | EP0519276A1 Supercharger carry-over venting means |
| 12/23/1992 | EP0519192A1 Liquid ring pump |
| 12/23/1992 | CN1067261A Lubricant for refrigeration compressors |
| 12/22/1992 | US5173042 Scroll compressor and discharge valve |
| 12/22/1992 | US5173041 Multistage vacuum pump with interstage solid material collector and cooling coils |
| 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 | EP0518356A1 Scroll type fluid machine |
| 12/16/1992 | CN2125028U Rotating damping reduction noise device for compressor |
| 12/15/1992 | US5170636 Heat exchanger |
| 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 |
| 12/08/1992 | US5169299 Rotary vane compressor with reduced pressure on the inner vane tips |
| 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 |
| 12/01/1992 | WO1992021881A1 Rotary compressor |
| 12/01/1992 | US5167496 Screw compressor with fluid bearings |
| 12/01/1992 | US5167494 Scroll type compressor with axially supported movable scroll |
| 11/26/1992 | WO1992020924A1 A rotary displacement compressor and a method for regulating a rotary displacement compressor |
| 11/24/1992 | US5165879 Scroll type fluid machinery with driving pin in bushing slide groove |
| 11/24/1992 | US5165878 Scroll type compressor with slide guide for preventing rotation of the moveable scroll |
| 11/24/1992 | US5165870 Refrigerant compressor |
| 11/24/1992 | CA1310622C Screw rotor mechanism with fabrication enhancing and volumetrically efficient tooth profiles |
| 11/19/1992 | EP0514040A1 Rotors for mechanically-driven superchargers |
| 11/18/1992 | CN1019139B Recovery device for wet screw compressor torch gas |
| 11/18/1992 | CA2068812A1 Liquid-ring pump |
| 11/04/1992 | CN1065907A Scroll-type compressor, scroll member and method and apparatus for macerating-plating thereof |
| 10/29/1992 | WO1992018772A1 Rotary compressor |
| 10/28/1992 | EP0510782A1 Scroll type compressor |
| 10/28/1992 | EP0510402A2 Orbiting rotary compressor |
| 10/28/1992 | CN2120204U Refrigeration compression engine with water circulating cooling apparatus |
| 10/28/1992 | CN1018853B 致冷压缩机 Refrigeration compressor |
| 10/27/1992 | US5158585 Compressor unit and separator therefor |
| 10/20/1992 | US5156532 Rotary vane vacuum pump with shaft seal |
| 10/20/1992 | CA1309126C Enclosed type electric compressor |
| 10/14/1992 | EP0508293A1 Scroll type compressor with injection mechanism |
| 09/30/1992 | EP0506189A1 Rotary compressor |
| 09/29/1992 | US5151021 Fluid compressor with adjustable bearing support plate |
| 09/23/1992 | CN1018374B Fluid compressor |
| 09/22/1992 | US5149346 Apparatus for reduction of vibration in liquid-injected gas compressor system |
| 09/17/1992 | WO1992015786A1 Device for supplying a multi-stage dry-running vacuum pump with inert gas |
| 09/16/1992 | EP0503329A1 Acoustic insulator applicable in particular to hydraulic passenger and/or freight elevator pumps |
| 09/15/1992 | US5147012 Blower motor mounting base |
| 09/15/1992 | CA1307508C Liquid injection cooling arrangement for a rotary compressor |
| 09/15/1992 | CA1307403C Rotary displacement compression heat transfer systems incorporating highly fluorinated regrigerant-synthetic oil lubricant compositions |
| 09/09/1992 | EP0502684A1 Rotary positive displacement pump |
| 09/09/1992 | EP0502514A1 Scroll type compressor with improved lubricating arrangement for movable parts thereof |
| 09/08/1992 | US5145335 Low-noise vacuum pump |
| 09/08/1992 | US5145327 Variable capacity vane compressor having an improved bearing for a capacity control element |
| 09/02/1992 | CN1018124B Rotor balancing |
| 08/26/1992 | EP0348417B1 A rotary machine equipped with a thrust balancing arrangement |
| 08/26/1992 | CN2114043U Noise-reduction box for medical air-compressoe |
| 08/25/1992 | US5141423 Axial flow fluid compressor with oil supply passage through rotor |
| 08/25/1992 | US5141420 Scroll compressor discharge valve |
| 08/25/1992 | US5141407 Scroll machine with overheating protection |
| 08/25/1992 | US5140828 Refrigeration cycle apparatus |
| 08/20/1992 | WO1992014059A1 Dry-running vacuum pump |
| 08/20/1992 | DE4203347A1 Spiral displacement machine with eccentric drive - has drive shaft with eccentric union taking main load of runner while guide shaft with eccentric pin overcomes dead point position |
| 08/18/1992 | US5139399 Compressor interstage coolant injector nozzle |
| 08/12/1992 | EP0498163A1 Scroll compressor |
| 08/12/1992 | EP0497995A1 Dry running vacuum pump |
| 08/12/1992 | EP0428729B1 Scroll type fluid handling machine |
| 08/12/1992 | CN1063531A 旋转泵 Rotary pump |
| 08/12/1992 | CN1017823B Rotary compressor |
| 08/11/1992 | US5137439 Screw rotor machine with de laval nozzle for noise reduction |
| 08/11/1992 | US5137437 Scroll compressor with improved bearing |
| 08/11/1992 | CA1306228C Low frictional loss rotary vane gas compressor having superior lubrication characteristics |
| 08/06/1992 | WO1992013196A1 Rotary pump |
| 08/04/1992 | US5135374 Oil flooded screw compressor with thrust compensation control |
| 08/04/1992 | US5134856 Oil pressure maintenance for screw compressor |
| 07/29/1992 | EP0395710B1 Valve arrangement for pump or compressor |
| 07/23/1992 | WO1992012348A1 Hermetic compressor |
| 07/22/1992 | EP0495744A1 Non-circular orbiting scroll for optimizing axial compliancy |
| 07/21/1992 | US5131829 Trapped volume vent means for meshing lobes of roots-type supercharger |
| 07/21/1992 | US5131825 Multi-stage vacuum pump with reaction chamber between stages |
| 07/21/1992 | US5131817 Two-stage pumping system |