Patents for F04C 2 - Rotary-piston machines or pumps (14,296)
12/1984
12/27/1984EP0129345A2 Rotary fluid pump
12/27/1984EP0129126A1 Rotary piston machines
12/27/1984EP0129066A2 Stepped discs pump
12/11/1984US4487559 Hydraulic machine with retractable partitions and variable cubic capacity
12/04/1984US4486150 Rotary pump and improved discharge port arrangement
11/1984
11/28/1984EP0126238A1 Scroll-type fluid displacement machine
11/27/1984US4484870 Planetary hydraulic motor with irregularly arranged valving parts
11/21/1984EP0125328A1 Vane pump, especially for power steering
11/14/1984EP0124592A1 Hydraulic torque device
11/13/1984US4482305 Axial flow apparatus with rotating helical chamber and spindle members
11/13/1984CA1177819A1 Articulated coupling
11/07/1984EP0124299A2 Hydraulic gerotor motor and parking brake for use therein
11/06/1984US4480972 Gerotor motor and case drain flow arrangement therefor
11/06/1984US4480971 In a rotary fluid pressure device
11/06/1984US4480970 Self priming gear pump
11/06/1984CA1177477A1 Direct drive bit for deep well drilling tools
11/06/1984CA1177327A1 Power steering pump
11/06/1984CA1177326A1 Power steering pump
10/1984
10/31/1984EP0123579A1 Apparatus for hydrostatic compensation of hydraulic pumps and motors of gear-type
10/16/1984US4477231 Variable displacement vane type pump
10/10/1984EP0120993A2 Vane pump
10/03/1984EP0120597A1 Positive displacement pump
10/03/1984EP0120058A1 Double vane pump
10/02/1984US4474544 Rotary gerotor hydraulic device with fluid control passageways through the rotor
10/02/1984CA1175291A1 Gear pump or motor with low pressure bearing lubrication
09/1984
09/26/1984EP0119460A2 Hydraulic energy-conversion device
09/18/1984US4472123 Internal gear machine with segmented filler members
09/13/1984WO1984003537A1 Compact high torque hydraulic motors
09/11/1984US4470776 Methods and apparatus for gear pump lubrication
09/11/1984CA1174113A1 Flushable rotary gear pump
08/1984
08/30/1984WO1984003330A1 Rotary blade machine
08/28/1984CA1173296A1 Gerotor gear set device with integral rotor and commutator
08/22/1984EP0116217A1 Two-speed gerotor motor
08/21/1984US4466809 Fuel supply method for a gasification chamber
08/21/1984CA1172905A1 Displacement variation of hydraulic machines with retractable partitions
08/15/1984EP0115889A1 Orbital hydraulic motor with frontal distribution and hydrostatic gap compensation
08/15/1984EP0115559A1 Variable capacity gear pump
08/14/1984US4465445 Rotary pivoted vane pump
08/07/1984US4464100 Scroll fluid apparatus handling compressible fluid
08/07/1984CA1172106A1 Power transmission
07/1984
07/31/1984US4462772 Oil feeding device for scroll fluid apparatus
07/31/1984US4462770 Gear pump with rotatable sections
07/25/1984EP0113786A1 Scroll type compressor with displacement adjusting mechanism
07/18/1984EP0113606A2 Rotary displacement pump
07/17/1984US4460322 Rotors for a rotary screw machine
07/17/1984CA1171045A1 Rotary compressor
07/03/1984US4457678 Fluid drive mechanism
07/03/1984US4457677 High torque, low speed hydraulic motor
07/03/1984US4457676 Driving support mechanism for an orbiting scroll of a scroll type fluid displacement apparatus
06/1984
06/27/1984EP0112008A1 A pressure loaded gear pump
06/26/1984US4456436 Rotary fuel supply unit with matched materials for the rollers and running track
06/26/1984US4456435 Scroll type fluid displacement apparatus
06/19/1984US4455130 Gear machine with oppositely aligned sealing elements
06/13/1984EP0110565A1 A rotor for a rotary pump
06/13/1984EP0110552A1 Improvements in or relating to pumps for dispensing beverages
06/12/1984US4453901 Positive displacement pump
06/05/1984CA1168510A1 Gear ring pump
05/1984
05/29/1984US4451218 Vane-piston pump
05/29/1984US4451217 Rotary fluid pressure device
05/29/1984US4451216 Planetary hydraulic motor with stator gear hinged to a housing
05/29/1984US4451215 Rotary piston apparatus
05/22/1984US4449953 Articulated coupling
05/22/1984US4449898 Power transmission
05/15/1984US4448256 Foam liquid proportioner
05/10/1984WO1984001800A1 Hydraulic torque device
05/09/1984EP0107824A1 Internal gear pump
05/08/1984CA1166933A1 Drive transmission means
05/01/1984US4445830 Radial vane pump having variable displacement
04/1984
04/24/1984CA1166076A1 Gear pumps and motors
04/17/1984US4443169 Gear pump
04/17/1984US4443168 Gear machine centering arrangement
04/17/1984US4443166 Scroll fluid apparatus with an arcuate recess adjacent the stationary wrap
04/17/1984US4443165 Moineau pump with helicoidal coupling sleeve
04/17/1984US4443161 Balanced dual chamber oil pump
04/12/1984WO1984001408A1 Double vane pump
04/10/1984US4441870 Scroll member
04/03/1984CA1164729A1 Marine drive water pump
04/03/1984CA1164728A1 Power steering pump
03/1984
03/27/1984US4439119 Gerotor machine with commutating valving through the ring gear
03/27/1984US4439117 Variable displacement vane pump
03/27/1984CA1164269A1 Self-contained rotary fuel pump
03/27/1984CA1164268A1 Submersible pump for use in toxic and hazardous waste sampling
03/20/1984US4437823 For use in pumps, compressors and motors
03/15/1984WO1984001004A1 Helical gear pump
03/13/1984CA1163500A1 Self-contained rotary fuel pump
03/07/1984EP0101758A1 Vane pump or motor
03/06/1984US4435136 Orbiting piston type fluid displacement apparatus with shaft bearing and seal mechanisms
03/01/1984EP0041518A4 Drive transmission means.
02/1984
02/28/1984US4433967 Pump impeller
02/21/1984US4432712 Hydrostatic gear ring machine
02/21/1984US4432711 Vane pump with cylinder profile defined by cycloid curves
02/21/1984US4432710 Rotary type machine with check valves for relieving internal pressures
02/21/1984US4432709 Hydraulic pump or motor
02/15/1984EP0100627A1 Helical gear pump
02/14/1984US4431391 Rotary pump
02/14/1984US4431389 Power transmission
02/14/1984CA1162106A1 Pressure gradient for a rotary hydraulic machine
02/08/1984EP0099950A2 A sintered rotor for a rotary pump and a manufacturing method for the rotor
01/1984
01/18/1984EP0098682A1 Planetary rotation machine
01/18/1984EP0098377A1 Gerotor type hydraulic machine