| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 11/02/1982 | CA1134674A1 Gear pump with means for dispersing gas into liquid |
| 10/26/1982 | US4355505 Rotatable controller valve |
| 10/26/1982 | CA1134202A1 Hydraulic pump |
| 10/20/1982 | EP0062747A2 Hydraulic gear motor |
| 10/19/1982 | US4354809 Fixed displacement vane pump with undervane pumping |
| 10/19/1982 | CA1133958A1 Axial compliance/sealing means for improved radial sealing for scroll apparatus and scroll apparatus incorporating the same |
| 10/13/1982 | EP0062405A1 Gear pump or motor with low pressure bearing lubrication |
| 10/06/1982 | EP0062017A1 Force pump |
| 10/06/1982 | EP0061630A1 Flushable gear pump |
| 10/06/1982 | EP0061560A2 Gear machine (pump or motor) |
| 10/05/1982 | US4352641 Self-contained rotary fuel pump |
| 09/30/1982 | WO1982003247A1 Planetary hydromotor |
| 09/29/1982 | EP0061293A1 Rotary fluid pressure device and lubrication circuit therefor |
| 09/21/1982 | US4350480 Intermeshing screw rotor machine with specific thread profile |
| 09/21/1982 | US4350479 Scrool-type fluid machine with liquid-filled force-balanced pockets |
| 09/14/1982 | US4348865 Helical gear machine with regulated outlet |
| 09/14/1982 | CA1131498A1 Axial flowing multiple purpose flow equipment |
| 09/07/1982 | US4347700 Direct-drive hydraulic pump-motor |
| 09/01/1982 | EP0059122A1 Rotary hydraulic device with axially sliding vanes |
| 08/31/1982 | US4347048 Hydraulic pump for power steering |
| 08/31/1982 | US4347047 Hydraulic pump for power steering |
| 08/31/1982 | CA1130652A1 Reversing pump eccentric member |
| 08/31/1982 | CA1130647A1 Thick stock pump |
| 08/24/1982 | CA1130139A1 Reversible unidirectional fluid flow pump |
| 08/17/1982 | US4344745 Self-sealing gear pump with sealing pressure divider |
| 08/10/1982 | US4343602 Gear wheel pump with reduced power requirement |
| 08/10/1982 | US4343600 Fluid pressure operated pump or motor with secondary valve means for minimum and maximum volume chambers |
| 08/04/1982 | EP0057123A2 Coupling means for the rotor of a single screw pump |
| 07/13/1982 | CA1127455A1 Helical gear pumps, compressors or motors |
| 07/08/1982 | WO1982002227A1 Vane pump |
| 06/29/1982 | US4337018 Rotary impeller pump or motor with counterbalancing chamber in thrust plate bearing counterbore |
| 06/23/1982 | EP0054161A2 Gerotor gear set device with integral rotor and commutator |
| 06/22/1982 | US4336006 Gear positive displacement machine with gaps between bearing members and housing |
| 06/22/1982 | US4336005 Gear pumps and motors |
| 06/22/1982 | CA1126091A1 Rotary pumps and motors and thrust plates therefor |
| 06/16/1982 | EP0053868A2 Nutating piston pump |
| 06/15/1982 | US4334843 Gerotor machine with valve plates attached to wheel gear |
| 06/15/1982 | US4334840 Gear pump or motor with serrated grooves on inner wall for break-in operation |
| 06/09/1982 | EP0053544A1 Hydraulic motor and hydrostatic power transmission employing this motor |
| 05/18/1982 | US4330241 Gear pump with pressure loaded bearing blocks and separate gear sealing plates |
| 05/13/1982 | WO1982001571A1 Improvements in gear pumps and motors |
| 05/12/1982 | EP0051192A1 Variable displacement vane pump |
| 05/11/1982 | US4329128 Pump for thermoplastic materials with heater means |
| 05/05/1982 | EP0050974A1 Scroll member and method of producing same |
| 04/21/1982 | EP0049881A1 Scroll type fluid displacement apparatus with compression modifying means |
| 04/21/1982 | EP0049838A1 Variable-displacement sliding-vane pump |
| 04/06/1982 | US4323335 Distributor valve for hydraulic planetary piston machine |
| 03/31/1982 | EP0048673A1 Vane-stator wall combination for rotary hydraulic devices |
| 03/31/1982 | EP0048322A1 Gear machine with centering means for the cover plates |
| 03/30/1982 | US4322030 Lubrication and cooling system for a high speed ultracentrifuge drive assembly |
| 03/04/1982 | WO1982000689A1 Gear pump having fluid deaeration capability |
| 03/04/1982 | WO1982000682A1 Method of making windows in parts of the distributing device of a positive-displacement hydraulic machine |
| 02/24/1982 | EP0046293A2 Rotary fluid pressure device and valve-seating mechanism therefor |
| 02/23/1982 | US4316707 Gerotor with valve plate attached to rotor |
| 02/23/1982 | US4316706 Variable displacement vane pump with non-fluctuating flow |
| 02/23/1982 | US4316439 Rotary engine with internal or external pressure cycle |
| 02/23/1982 | CA1118616A1 Machine parts of powdered metal |
| 02/05/1982 | EP0038362A4 Contaminant resistant gear pumps and motors. |
| 02/02/1982 | US4313717 Adjustable pressure extrusion pump |
| 01/21/1982 | WO1982000173A1 Planetary hydromotor |
| 01/21/1982 | WO1982000172A1 Planetary hydromotor |
| 01/20/1982 | EP0043947A1 Power steering pump |
| 01/20/1982 | EP0043899A1 Annular gear pump |
| 01/20/1982 | EP0043881A1 Rotary hydraulic converting and distributing device with multiple synchronized cylinders |
| 01/19/1982 | US4311445 Contaminant resistant gear pumps and motors with wear inserts |
| 01/19/1982 | US4311444 Pressure-balancing end plate for a reversible gear pump or motor |
| 01/13/1982 | EP0043701A2 Capacity control for a scroll-type fluid displacement apparatus |
| 01/05/1982 | US4309158 Gear positive displacement machine with U-shaped supporting element for sealing member |
| 12/16/1981 | EP0041518A1 Drive transmission means |
| 12/01/1981 | US4303379 Scroll-type compressor with reduced housing radius |
| 11/24/1981 | US4302165 Interengaging screw machine with radial inlet and/or outlet bore |
| 11/11/1981 | EP0039623A1 Improvements in or relating to scroll-type fluid displacement apparatus |
| 11/11/1981 | EP0039622A1 Improvements in or relating to fluid displacement apparatus |
| 11/03/1981 | US4298319 Hydraulic gear pump or motor with floating wear plates, balance assembly, and unitary load bearing and alignment means |
| 11/03/1981 | US4298318 Rotary valve for fluid motor or pump |
| 11/03/1981 | US4297917 Power distribution gearing for double helix extruders |
| 10/29/1981 | WO1981003046A1 Planetary hydromotor |
| 10/28/1981 | EP0038482A2 Annular piston machine |
| 10/28/1981 | EP0038362A1 Contaminant resistant gear pumps and motors. |
| 10/27/1981 | US4296936 Seal mechanism for the rotor periphery of a rotary piston engine |
| 10/27/1981 | US4296500 Artifical heart |
| 10/21/1981 | EP0038315A1 Wobbling rotary-piston machine |
| 10/20/1981 | US4295805 Hydraulic rotary toothed piston engine with flow through the toothed gaps |
| 10/20/1981 | CA1110916A1 Gear pump having fluid deaeration capability |
| 10/07/1981 | EP0037294A2 Single screw pump installation for the transport of pasty products possessing a high viscosity |
| 10/06/1981 | US4293290 Positive displacement rotary pump with bearings in countersunk portions of the rotors |
| 09/29/1981 | US4292013 Rotary impeller or motor with pressure balanced end plates |
| 09/22/1981 | US4290739 Helical gear pump or gear motor with optimal relief grooves for trapped fluid |
| 09/22/1981 | US4290736 Oil pump having a suction and pressure pipe arrangement |
| 09/17/1981 | WO1981002606A1 Rotary piston engine |
| 09/15/1981 | US4289454 Rotary hydraulic device |
| 09/15/1981 | CA1109037A1 Scroll-type compressor units |
| 09/03/1981 | WO1981002447A1 Eccentric screw pump with helical rotor |
| 09/01/1981 | US4286933 Rotary vane pump with pairs of end inlet or outlet ports |
| 09/01/1981 | CA1108010A1 Scroll-type liquid pump |
| 08/26/1981 | EP0034155A1 Hydraulic motor |
| 08/25/1981 | US4285643 Rotary fluid pressure device |
| 08/18/1981 | US4284392 Roller pump with radial members |
| 08/18/1981 | US4284386 High pressure pump |
| 08/12/1981 | EP0033544A2 Internal-axis gear-type fluid machine with distribution means |