Patents
Patents for F04C 23 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids (6,201)
03/1996
03/28/1996DE19503716C1 Twin=shafted rotary pump
03/20/1996CN1118842A Sealed compressor
03/20/1996CN1031361C Encapsulated rotary compressor
03/12/1996US5498143 Scroll compressor with flywheel
03/07/1996DE4091980C2 Scroll compressor
03/05/1996US5495885 Method for making rotor counterweight insert apparatus
02/1996
02/28/1996EP0698736A1 Scroll compressor capable of effectively cooling a motor
02/21/1996EP0697523A2 Screw fluid machine and screw gear used in the same
02/20/1996US5492460 Scroll-type fluid machine having a wear-resistant plate
02/15/1996DE4091978C2 Scroll compressor
02/13/1996CA2043933C Scroll type fluid machinery
02/06/1996US5489198 Scroll machine sound attenuation
02/01/1996WO1996002799A1 Refrigeration system and pump therefor
02/01/1996CA2195016A1 Refrigeration system and pump therefor
01/1996
01/31/1996CN1115998A Scroll compressor
01/31/1996CN1030853C A method for dynamically balancing nested coupling mechanisms for scroll machines
01/30/1996US5487654 Hermetic compressor with heat shield
01/24/1996CN1030792C Nested coupling mechanism for scroll machines
01/18/1996DE4443387C1 Twin=step mechanical vacuum pump assembly
01/17/1996EP0692635A2 Multistage dry compressing vacuum pump and method for its operation
01/10/1996EP0691475A2 Fluid rotating apparatus
01/09/1996US5482450 For handling a working fluid
01/04/1996WO1996000350A1 Horizontal scroll compressor
12/1995
12/26/1995US5478210 Multi-stage vacuum pump
12/20/1995EP0687815A2 Scroll type fluid machine
12/20/1995CN1113549A Scroll machine sound attenuation
12/20/1995CN1113546A Vortex hydraulic mechanism
12/19/1995US5476373 Reverse drive oil pump
12/19/1995US5476369 Rotor counterweight insert apparatus
12/13/1995EP0686238A1 A compressor for a refrigerant gas recovering machine
12/12/1995US5474433 Axial sealing mechanism of volute compressor
12/12/1995US5474431 Scroll machine having discharge port inserts
12/05/1995US5472327 Rotary compressor with improved fluid inlet porting
11/1995
11/30/1995DE4418262A1 Circular rotating impeller with sliding seal
11/29/1995CN1112649A A multistage vacuum pump
11/22/1995EP0683322A2 Pump unit
11/14/1995US5466136 Scroll compressor having a gas liquid separator
11/09/1995WO1995030091A1 Vapor control system
11/02/1995EP0679810A2 Scroll apparatus
11/02/1995EP0679809A2 Compressor and refrigerating unit
10/1995
10/23/1995EP0746685A4 Scroll compressor drive having a brake
10/17/1995US5458472 Scroll type compressor having thrust regulation on the eccentric shaft
10/11/1995CN1109948A Scroll machine having discharge port inserts
10/04/1995EP0675288A2 Fluid compressor
09/1995
09/27/1995EP0674106A1 A multistage vacuum pump
09/27/1995CN1109143A An oil supplying apparatus for a horizontal type rotary compressor
09/27/1995CN1029867C Compresor, and method of manufacturing same
09/14/1995WO1995024561A1 Scroll compressor capable of effectively cooling a motor
09/14/1995CA2162483A1 Scroll compressor capable of effectively cooling motor thereof
09/13/1995EP0671562A2 Closed-type compressor
09/12/1995US5449276 Two stage vacuum pump having different diameter interengaging rotors
09/05/1995US5447422 Air-cooled oil-free rotary-type compressor
09/05/1995US5447418 Scroll-type fluid machine having a sealed back pressure chamber
09/05/1995US5447415 Motor driven fluid compressor within hermetic housing
08/1995
08/30/1995CN1107554A Sealed compressor and refrigerating apparatus, refrigerator and air conditioner using same
08/29/1995US5445507 Scroll type compressor having a spacer coupling the fixed scroll to the frames
08/29/1995US5445502 Vacuum pump having parallel kinetic pump inlet section
08/22/1995US5443374 Motor driven fluid compressor
08/16/1995CN1106895A Vortex compressor and assembly of same
08/10/1995WO1995021329A1 Improved oil free scroll vacuum pump
08/09/1995EP0563348B1 Compressor interstage coolant injector nozzle
08/09/1995CN1106505A Vortex compressor
08/02/1995EP0635094A4 Scroll machine.
08/02/1995EP0480065B1 Scroll compressor
07/1995
07/25/1995US5435144 Compressor lubricant distributing system for motor vehicles having auxiliary air conditioning
07/19/1995EP0663045A1 Method of operating a claw-type vacuum pump, and a claw-type vacuum pump suitable for carrying out the method.
07/19/1995CN1105426A Rotative vacuum pump composed of two parts
07/05/1995EP0661457A1 Thermostatic compressor suction inlet duct valve
06/1995
06/28/1995EP0477331B1 Manual device for generating local under or over pressure
06/27/1995US5427511 Scroll compressor having a partition defining a discharge chamber
06/22/1995WO1995016860A1 A compressor for a refrigerant gas recovering machine
06/21/1995CN1103932A Scroll-type fluid machine
06/08/1995WO1995015439A1 A device in a vacuum pump
06/08/1995DE4092106C1 Spiral compressor
05/1995
05/16/1995CA2084366C Method for dynamically balancing nested coupling mechanisms for scroll machines
05/11/1995WO1995012759A1 Scroll compressor
05/10/1995CN1028380C Oldham coupling for scroll compressor
05/09/1995US5413467 Oil-free type screw compressor device
05/03/1995CN1102240A Vortex compressor
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
04/18/1995US5407334 Scroll type compressor having a convex surface on the sub frame bushing
04/04/1995US5403172 Scroll machine sound attenuation
04/04/1995US5403171 Scroll compressor
03/1995
03/28/1995US5401149 Package-type screw compressor having coated rotors
03/22/1995CN1100497A Horizontal rotary compressor
03/21/1995US5399076 Rolling piston compressor
03/07/1995US5395214 Starting method for scroll-type compressor
03/07/1995US5394709 Thermodynamic systems including gear type machines for compression or expansion of gases and vapors
03/01/1995EP0569424B1 Dry-running vacuum pump
02/1995
02/23/1995WO1995005540A1 Vacuum pump with oil separator
02/23/1995DE4092020C2 Spiral compressor
02/21/1995US5391054 Compressor end shell
02/15/1995EP0593747A4 Compressor assembly with staked shell.
02/14/1995US5388428 Gas expansion refrigeration system
02/09/1995WO1995004221A1 Two-stage slide vane vacuum pump
02/09/1995WO1995004220A1 Housing for a two-stage rotary vane vacuum pump
02/07/1995CA2098312C Compressor interstage coolant injector nozzle
01/1995
01/31/1995US5385453 Multiple compressor in a single shell
01/25/1995EP0635094A1 Scroll machine
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