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 18 - Rotary-piston pumps specially adapted for elastic fluids
Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
01/1985
01/08/1985US4492543 Orbiting member fluid displacement apparatus with rotation preventing mechanism
01/08/1985US4492540 Variable-displacement vane compressor with one or more ferromagnetic vanes
01/08/1985US4492526 Compressor drive system
12/1984
12/27/1984EP0129004A1 Compressor unit
12/25/1984US4490175 Vane for rotary fluid compressors
12/25/1984US4490102 Volumetric screw compressor
12/18/1984US4488858 Compressor with radial inlet to screw-formed rotor
12/18/1984US4488855 Main bearing lubrication system for scroll machine
12/11/1984US4487563 Oil-free rotary displacement compressor
12/11/1984US4487561 Rotary piston compressor
12/11/1984US4487560 Scroll fluid compressor with surface finished flat plates engaging the wraps
12/06/1984WO1984004783A1 Apparatus for supporting rotational sleeve of rotary compressor by fluid
12/04/1984US4486158 Rotary vane compressor with suction port adjustment
11/1984
11/28/1984EP0126478A1 Rotary sleeve bearing apparatus for rotary compressors
11/28/1984EP0126477A1 Rotor-shaft bearing apparatus for movable vane compressors
11/28/1984EP0126238A1 Scroll-type fluid displacement machine
11/27/1984US4484873 Through vane type rotary compressor with specific chamber configuration
11/27/1984US4484872 Globoid-worm machine with tapered screw clearance near high pressure end seal
11/27/1984US4484869 Volumetric fluid compressor
11/27/1984US4484868 Vane compressor having improved cooling and lubrication of drive shaft-seal means and bearings
11/22/1984WO1984004569A1 Blower and method in manufacturing same
11/20/1984CA1178256A1 Stepping type unloading system for helical screw rotary compressor
11/20/1984CA1178255A1 Gas compressor of the scroll type having reduced starting torque
11/07/1984EP0124114A2 Scroll-type compressor
11/06/1984US4480973 Vane compressor provided with endless camming surface minimizing torque fluctuations
11/06/1984CA1177454A1 Wrap element and tip seal for use in fluid apparatus of the scroll type
10/1984
10/31/1984EP0123407A1 Rotation-preventing device for an orbiting piston-type fluid displacement apparatus
10/30/1984US4479763 Rotary compressor
10/30/1984CA1177036A1 Tip seal back-up member for use in fluid apparatus of the scroll type
10/25/1984WO1984004137A1 Compressor
10/24/1984EP0122725A1 Screw rotors for compressors or the like
10/24/1984EP0122723A1 Axial clearance adjustment mechanism for scroll-type fluid displacement apparatus
10/24/1984EP0122722A1 Axial sealing device for a scroll type fluid displacement apparatus
10/23/1984US4478054 Helical screw rotary compressor for air conditioning system having improved oil management
10/17/1984EP0122068A1 Interfitting mechanism of spiral elements for scroll type fluid displacement apparatus
10/17/1984EP0122067A1 A scroll type fluid displacement apparatus with surface treated spiral element
10/17/1984EP0122066A1 Scroll type fluid displacement apparatus with axial moving prevent device of bearing for driving mechanism
10/16/1984US4477238 Scroll type compressor with wrap portions of different axial heights
10/09/1984US4475878 Screw rotor with tooth form produced by thermal deformation and gear backlash
10/09/1984US4475877 Globoid worm machine with metal ring in bearing housing
10/09/1984US4475875 Scroll type fluid displacement apparatus with balance weight
10/09/1984US4475360 Refrigeration system incorporating scroll type compressor
10/02/1984US4474543 Rotation prevention device for an orbiting member of a fluid displacement apparatus
09/1984
09/26/1984EP0119887A1 Seal assembly for closing a cavity, particularly in a rotary pump or compressor
09/25/1984US4473343 Bearing device for scroll-type compressor
09/19/1984EP0118900A1 Lubricating mechanism for a scroll-type fluid displacement apparatus
09/11/1984US4470778 Scroll type fluid displacement apparatus with oil separating mechanism
09/11/1984US4470777 Volumetric machine with screw and pinion-wheels
09/11/1984US4470767 Vacuum pump with overload protection valve
09/11/1984US4470380 Charging and distributing device for two-stroke engine
09/04/1984CA1173805A1 Compressor
08/1984
08/30/1984WO1984003334A1 Vane type rotary compressor
08/28/1984US4468181 Improved rotation preventing device for a scroll-type fluid displacement apparatus
08/28/1984US4468180 Vane compressor having intermittent oil pressure to the vane back pressure chamber
08/28/1984US4468178 Scroll type compressor with displacement adjusting mechanism
08/22/1984EP0116356A1 Rotary piston engine
08/22/1984EP0116136A2 Rotary compressor
08/21/1984US4466785 Clearance-controlling means comprising abradable layer and abrasive layer
08/21/1984US4466784 Drive mechanism for a scroll type fluid displacement apparatus
08/21/1984US4466783 Three vane, two lobe fluid motor
08/14/1984US4465286 Seal for closing a cavity
08/08/1984EP0115228A1 Volumetric machine with conical screws
08/07/1984US4464102 External axis rotary piston compressor
08/07/1984US4464100 Scroll fluid apparatus handling compressible fluid
08/07/1984CA1172222A1 Compressor
08/07/1984CA1172221A1 Gas compressor of the scroll type having delayed suction closing capacity modulation
07/1984
07/31/1984US4462771 Wrap element and tip seal for use in fluid apparatus of the scroll type and method for making same
07/31/1984US4462302 Motor fuel feed pump
07/25/1984EP0113786A1 Scroll type compressor with displacement adjusting mechanism
07/17/1984US4460322 Rotors for a rotary screw machine
07/17/1984US4460321 Axial clearance adjustment mechanism for scroll type fluid displacement apparatus
07/17/1984US4460319 Two-stage rotary compressor
07/10/1984US4459091 Rotary vane pump
07/10/1984US4459090 Rotary type compressor for automotive air conditioners
07/10/1984CA1170682A1 Wrap element and tip seal for use in fluid apparatus of the scroll type and method for making same
07/03/1984US4457680 Rotary compressor
07/03/1984US4457676 Driving support mechanism for an orbiting scroll of a scroll type fluid displacement apparatus
07/03/1984US4457675 Volumetric fluid compressor device
07/03/1984US4457674 High efficiency scroll type compressor with wrap portions having different axial heights
07/03/1984CA1170233A1 Air pump with centrifugal filter
06/1984
06/26/1984US4456435 Scroll type fluid displacement apparatus
06/26/1984US4456051 Scroll manufacturing method
06/19/1984US4455132 Volumetric compressor of the roots type
06/12/1984US4453900 Valve system for capacity control of screw compressors
06/05/1984US4452570 Multiple cylinder rotary compressor
05/1984
05/30/1984EP0109823A1 Rotary displacement machine
05/29/1984US4451220 Rotary compressor with clearance between movable vanes and slits of the rotor
05/29/1984US4451218 Vane-piston pump
05/29/1984US4451215 Rotary piston apparatus
05/22/1984CA1167812A1 Closed loop compressed gas system with oil mist lubricated screw compressor
05/08/1984US4447196 Rotary vane compressor with valve control of undervane pressure
05/02/1984EP0107409A1 Scroll type compressor with lubricating system
05/01/1984US4445831 Screw rotor machine rotors and method of making
04/1984
04/25/1984EP0106288A1 Scroll type compressor
04/25/1984EP0106287A1 Scroll type fluid displacement apparatus
04/18/1984EP0105684A1 Scroll type refrigerant compressor with improved spiral element
04/18/1984EP0105315A1 Compressor of hermetical type.
04/17/1984US4443170 Arrangement at oil-injected high-pressure screw compressor
04/17/1984US4443166 Scroll fluid apparatus with an arcuate recess adjacent the stationary wrap
04/10/1984US4441870 Scroll member
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