Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps › F04C 27 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
Patents for F04C 27 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids (2,516)
06/1996
06/05/1996EP0714482A1 Vacuum pump with oil separator
06/05/1996CN1123888A Scroll type fluid machine
05/1996
05/28/1996US5520526 Scroll compressor with axially biased scroll
05/15/1996EP0711387A1 Vacuum pump with a gas ballast device
04/1996
04/30/1996US5511959 Scroll type fluid machine with parts of sintered ceramics
04/24/1996CN2225560Y Two-stage corrosion resistant liquid ring vacuum pump
04/23/1996USRE35216 Scroll machine with floating seal
04/18/1996WO1994012792A1 Process and device for reducing the gap between a static part and a movable part
04/18/1996CA2150828A1 Method and a device for reducing the gap between a static and a movable part
04/09/1996US5505595 Scroll type fluid displacement apparatus having axial movement regulation of the driving mechanism
03/1996
03/07/1996DE4091980C2 Scroll compressor
03/05/1996US5496155 Rotary device having plural mounting orientations and fluid connections
02/1996
02/28/1996EP0698185A1 Rotary screw compressor with seal means
02/15/1996DE4091978C2 Scroll compressor
02/13/1996US5490771 External, shaft bearing arrangement, for a rotary gas compressor
01/1996
01/31/1996CN1115998A Scroll compressor
01/30/1996US5487654 Hermetic compressor with heat shield
01/30/1996US5487653 Axial leakage resistant apparatus of scroll-type compressor
01/18/1996DE4443387C1 Twin=step mechanical vacuum pump assembly
01/09/1996US5482450 For handling a working fluid
12/1995
12/20/1995CN1113547A Scroll machine with reverse rotation protection
12/20/1995CN1113546A Vortex hydraulic mechanism
12/12/1995US5474433 Axial sealing mechanism of volute compressor
12/05/1995US5472327 Rotary compressor with improved fluid inlet porting
11/1995
11/21/1995US5468130 Coating structure for a movable member in a compressor
11/14/1995US5466134 Scroll compressor having idler cranks and strengthening and heat dissipating ribs
11/08/1995EP0681105A2 Scroll machine with reverse rotation protection
11/02/1995EP0482209B1 Scroll compressor
10/1995
10/31/1995US5462419 Pressure biased co-rotational scroll apparatus with enhanced lubrication
10/31/1995US5462418 Scroll type compressor equipped with mechanism for receiving reaction force of compressed gas
10/25/1995EP0678673A1 Rotating scroll compressor
10/17/1995US5458471 Scroll-type fluid displacement device having high built-in volume ratio and semi-compliant biasing mechanism
10/12/1995WO1995027143A1 Scroll compressor
10/04/1995EP0674751A1 Rotary screw compressor with shaft seal.
09/1995
09/20/1995EP0672222A1 Process and device for reducing the gap between a static part and a movable part.
09/13/1995CN1108358A Scroll machine with reverse rotation protection
09/12/1995US5449279 Pressure biased co-rotational scroll apparatus with enhanced lubrication
09/05/1995US5447420 Scroll compressor with liquid injection
09/05/1995US5447418 Scroll-type fluid machine having a sealed back pressure chamber
08/1995
08/31/1995DE19506532A1 Rotary machine for flow media e.g servo steering or pump
08/10/1995WO1995021329A1 Improved oil free scroll vacuum pump
08/09/1995EP0666422A1 Bearings and drive connection for the rotors of a screw compressor
08/03/1995WO1995020719A1 Scroll-type fluid displacement device having high built-in volume ratio and semi-compliant biasing mechanism
07/1995
07/26/1995CN1029379C 平衡式行星齿轮泵或马达 Balanced type planetary gear pump or motor
07/25/1995US5435707 Scroll-type compressor with an elastically deformable top plate or end plate
06/1995
06/29/1995WO1995017605A1 Liquid ring vacuum pump
06/29/1995DE4446350A1 Spiral compressor with pressure die cast components
06/27/1995US5427511 Scroll compressor having a partition defining a discharge chamber
06/21/1995CN2201497Y Shaft sealing device for water pump
06/21/1995CN1103932A Scroll-type fluid machine
06/01/1995DE4441640A1 Oil deflector for refrigerant compressor for vehicle air conditioning system
05/1995
05/31/1995EP0655555A1 Scroll machine with reverse rotation protection
05/11/1995WO1995012759A1 Scroll compressor
05/10/1995CN1028379C Scroll machine with floating seal
05/09/1995US5413467 Oil-free type screw compressor device
05/02/1995US5411384 Scroll compressor having upper and lower bearing housings and a method of testing and assembling the compressor
04/1995
04/18/1995US5407335 Non-orbiting scroll mounting arrangements for a scroll machine
04/04/1995CA2088160C Rotary compressor
03/1995
03/30/1995WO1995008713A1 Scroll apparatus with enhanced lubrication
03/29/1995EP0645540A1 Variable capacity vane compressor with axial pressure device
03/09/1995WO1995006820A1 Scroll compressor
03/08/1995EP0641583A1 Installation for the continuous purification of a solvent
03/02/1995DE4429911A1 Coating structure for a movable element of a compressor
03/01/1995EP0569424B1 Dry-running vacuum pump
02/1995
02/23/1995WO1995005540A1 Vacuum pump with oil separator
02/09/1995WO1995004223A1 Vacuum pump with a gas ballast device
01/1995
01/24/1995US5383772 Scroll compressor stabilizer ring
01/18/1995EP0634576A1 Transmission with revolving bearing and seal used hereby
01/17/1995CA2018207C Axial sealing mechanism for a scroll type compressor
12/1994
12/20/1994US5374171 Rotary compressor thrust washer
12/07/1994CN2184804Y Vortex disk sealing structure
11/1994
11/24/1994WO1994027050A1 Rotary screw compressor with seal means
11/23/1994CN1095455A Rotative fluid equipment
11/22/1994US5366358 Oil free scroll vacuum pump
11/17/1994DE4316195A1 Oil-sealed vacuum pump with pressure-oil lubrication
11/16/1994CN2182894Y Magnetic coupling rotation type refrigeration compressor
11/15/1994US5364247 Sealing structure for scroll type compressor
11/15/1994US5364245 Dry-running twin-shaft vacuum pump
11/15/1994US5364235 Variable capacity vane compressor with axial pressure device
11/15/1994CA2063232C Scroll compressor including compliance mechanism for the orbiting scroll member
11/08/1994US5362217 Helical positive-displacement machine having a meandering sealing strip groove
10/1994
10/25/1994US5358391 Hermetic compressor with heat shield
10/20/1994DE4412523A1 Screw compressor comprising a mechanism for absorbing a pressurised-gas compression reaction force
10/18/1994US5356275 Device for supplying a multi-stage dry-running vacuum pump with inert gas
10/06/1994DE4310740A1 Screw compressor, especially for intermittent operation
09/1994
09/13/1994US5346376 Axial thrust applying structure for the scrolls of a scroll type compressor
08/1994
08/23/1994US5340287 Scroll-type compressor having a plate preventing excess lift of the crankshaft
08/17/1994EP0574442B1 Device for supplying a multi-stage dry-running vacuum pump with inert gas
08/16/1994US5338167 Dry-running vacuum pump
08/16/1994CA2060587C Axially floating scroll member assembly
08/03/1994EP0569455B1 Dry-running twin-shaft vacuum pump
07/1994
07/21/1994DE3744760C2 Compacting machine compressing fluid e.g. refrigeration compressor
07/20/1994EP0606965A1 Method and arrangement for eliminating small quantities of leaking lubricant and cooling liquid
07/19/1994US5329788 Scroll compressor with liquid injection
07/07/1994WO1994015100A1 Rotary screw compressor with shaft seal
05/1994
05/18/1994EP0597804A1 Fluid displacement apparatus with a spiral element
05/18/1994EP0597407A1 Twin-shaft vacuum pump
05/11/1994DE4313457C1 Pump with intermeshing lobed rotors - has adjusting mechanism in each lobe thrusting elastomer cover at tip outwards and has adjusting body sliding in groove inside lobe
05/04/1994CN1086293A Vortex volume-type fluid displacement device
05/03/1994CA1329183C Delivery pressure operated thrust control system for working contact surfaces in a scroll compressor
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