| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 09/30/1993 | WO1993019297A1 Vane-cell pump |
| 09/30/1993 | DE4308506A1 Oil pump for IC-engine lubrication feed - has internally and externally toothed rotors with switching valve to connect outlets |
| 09/30/1993 | DE4224969C1 Förderschraubenpaar für rotierende Verdrängerpumpen Pair of conveyor worms for rotary positive displacement pumps |
| 09/30/1993 | DE4209840A1 Flügelzellenpumpe Vane pump |
| 09/30/1993 | DE4209792A1 Hydraulic mechanical drive for IC camshaft adjustment - employs motor driven pump to move coupling element against spring for engagement of sets of inclined gear teeth |
| 09/22/1993 | EP0561501A1 Rotary motor and auger employing same |
| 09/22/1993 | EP0561304A1 Inlet controlled gear pump |
| 09/21/1993 | US5246358 Cam-gear pump-compressor apparatus |
| 09/16/1993 | DE4307003A1 Variable volume rotary slide pump for vehicle engine - uses pair of inclusion segments inserted between rotor and cam ring. |
| 09/15/1993 | EP0560709A2 Method of generating the surfaces of a piston for a rotary piston machine |
| 09/15/1993 | EP0560462A2 Positive displacement pumps |
| 09/15/1993 | CN1076249A Rotary piston machine and use of said machine |
| 09/15/1993 | CN1022127C Low-speed, high-torque rotor hydraulic motor |
| 09/14/1993 | US5244367 Gear pump with a resilient means for biasing a side wear plate |
| 09/08/1993 | EP0559582A1 Gear pump for high viscosity materials |
| 09/08/1993 | EP0558888A1 Device for the treatment of highly viscous rubber or thermoplastic synthetic material |
| 09/07/1993 | US5242286 Internal gear pump |
| 09/07/1993 | CA2089129A1 Gear pump for high viscosity material |
| 09/07/1993 | CA2068640A1 Dual revolving vane meter-motor-pump |
| 08/31/1993 | US5240393 Hydraulic machine of the gear type |
| 08/30/1993 | CA2079728A1 Rotary lobe pump |
| 08/26/1993 | DE4205116A1 Double-acting pump for fluidic media - has rotor with ribbed cooling surfaces at sides, which cover connected chambers |
| 08/24/1993 | US5238373 Extending-retracting vane meter-motor-pump |
| 08/19/1993 | DE4204186A1 Rotary piston pump for gaseous/liquid materials - has triangular isosceles piston, moving on eccentric drive shaft in trochoidal housing |
| 08/18/1993 | EP0555909A1 Rotary pump with simplified pump housing |
| 08/18/1993 | EP0555621A1 Pump arrangement |
| 08/18/1993 | EP0555374A1 Two speed gerotor motor with centrally located valve and commutator |
| 08/17/1993 | US5236319 Adjustable displacement volume, plastic rings |
| 08/17/1993 | US5236315 Hydraulic pump for power-assisted steering system |
| 08/17/1993 | US5235821 Method and apparatus for refrigerant recovery |
| 08/15/1993 | CA2080542A1 Rotary motor with counterbalanced torque arm |
| 08/11/1993 | EP0555173A1 A pump |
| 08/05/1993 | DE4202466A1 Hydraulic motor with eccentric rotor on motor shaft - has adjustable return valve to create pressure increase in chamber, for pressure compensation |
| 08/03/1993 | US5232356 Seal device for gear pump |
| 08/03/1993 | US5232341 Pump impeller assembly |
| 07/28/1993 | EP0552443A1 Gear machine |
| 07/22/1993 | WO1993014318A1 Compact controllable vane pump |
| 07/22/1993 | WO1993014314A1 Water turbines or pumps |
| 07/22/1993 | DE4201401A1 Displacement pump conveying fuel in motor vehicle - has drive motor installed into jar-shaped housing as complete prefabricated component of motor housing |
| 07/22/1993 | DE4200987A1 Gear pump for a variety of liquids - has steel or PTFE disc between rotor and runner |
| 07/21/1993 | CN1074511A 偏心泵 Eccentric Pumps |
| 07/20/1993 | US5228846 Spline reduction extension for auxilliary drive component |
| 07/15/1993 | DE4200305A1 Regelbare fluegelzellenpumpe in kompakter bauweise Adjustable fluegelzellenpumpe in compact construction method |
| 07/13/1993 | US5226803 Vane-type fuel pump |
| 07/13/1993 | US5226798 Gear ring pump for internal-combustion engines and automatic transmissions |
| 07/11/1993 | CA2059200A1 Hydraulic gear pump |
| 07/08/1993 | WO1993013296A1 Rotary piston pump |
| 07/08/1993 | CA2126326A1 Rotary piston pump |
| 07/07/1993 | EP0549929A1 Internal gear pump |
| 07/07/1993 | EP0537146A4 Rotary disc pump |
| 07/06/1993 | US5224850 Rotary device with vanes composed of vane segments |
| 07/06/1993 | US5224838 Gear pump with groover sealing means |
| 07/06/1993 | CA1319890C Synchronizing and unloading system for scroll fluid device |
| 07/01/1993 | DE4241873A1 Oil pump for engine lubrication - has inner gear and outer gear which form pump chambers with increased suction efficiency |
| 06/30/1993 | EP0549057A1 Method for the manufacturing of gear-wheels, gear-wheels thus obtained and gear-wheel pump equipped therewith |
| 06/29/1993 | US5222886 Cheek plate for a vane pump |
| 06/24/1993 | WO1993012325A1 Rotary-piston machine |
| 06/23/1993 | CN1021356C Rotary valve-type hydraulic motor or pump |
| 06/15/1993 | US5219277 Electric-motor fuel pump |
| 06/15/1993 | US5219276 Pump, in particular an enclosed medical pump |
| 06/10/1993 | WO1993011357A1 Geared machine |
| 06/09/1993 | EP0545424A1 Internal gear pump with sealings incorporated in the teeth |
| 06/09/1993 | EP0411000B1 A method for manufacturing screw rotors |
| 06/09/1993 | DE4207088C1 Feeder for high viscosity e.g. rubber - has sealed housing contg. two revolving toothed wheels with spiral flow bores which return leaked material back to feed gap |
| 06/08/1993 | US5217357 Rotary vane pump with removable particulate collection chamber |
| 06/02/1993 | EP0544209A1 Spline reduction and extension for auxiliary drive component |
| 06/02/1993 | EP0543809A1 Guided vanes hydraulic power system |
| 06/01/1993 | US5215453 Gear wheel assembly for hydraulic purposes, and method assembling the same |
| 06/01/1993 | US5215165 Oil pump |
| 06/01/1993 | CA1318549C Internal gear machine with reinforced housing |
| 05/27/1993 | WO1993010354A1 Pump |
| 05/27/1993 | DE4138516A1 Pumpe Pump |
| 05/27/1993 | CA2081707A1 Triazine reinforcement and curing of hydrogenated acrylonitrile butadiene rubber |
| 05/26/1993 | EP0542759A1 A multi-chamber rotary lobe fluid machine with positive sliding seals |
| 05/19/1993 | DE4137767A1 Machining elastomer stators for eccentric worm pumps - involves stators with metallic, closed, hollow cylindrical cover and elastomer coating enclosing pump work chamber, hollow space being brought to correct dim. by dia. redn. |
| 05/19/1993 | CN1020785C Vane pump system |
| 05/18/1993 | US5211551 Modular motor |
| 05/18/1993 | US5211026 Combination lift piston/axial port unloader arrangement for a screw compresser |
| 05/11/1993 | US5209937 Insert for barrel extruders |
| 05/11/1993 | US5209648 Rotary-vane pump |
| 05/06/1993 | DE4236722A1 Rotary pump with sliding vanes - has outlet passages through rotor from periphery contg. non-return valves spring loaded from discharge direction |
| 05/06/1993 | DE4136151A1 Rotary-vane pump - has chambers under sliding vanes connected via control-valve chamber to unit supplied |
| 05/05/1993 | EP0540067A2 Rotary pump |
| 05/05/1993 | EP0539673A1 Internal gear pump with two ring gears and one common pinion |
| 05/05/1993 | CN2132005Y Rotary positive displacement pump |
| 04/29/1993 | WO1993008403A1 Vane pump |
| 04/29/1993 | WO1993008402A1 Rotary machine |
| 04/28/1993 | EP0539188A1 Rotary vane device for hydraulic fluid |
| 04/28/1993 | EP0538449A1 Revolting-rotating vane meter-motor-pump |
| 04/21/1993 | EP0537146A1 Rotary disc pump. |
| 04/18/1993 | CA2080800A1 Pump and applicator for drywall filler |
| 04/15/1993 | DE4133880A1 Fuel feed pump for spare fuel tank of vehicle IC engine - has cog spline lying eccentrically within internally toothed cog ring having radial flow channels |
| 04/14/1993 | EP0536825A1 Rotary machine assembly |
| 04/13/1993 | US5201878 Vane pump with pressure chambers at the outlet to reduce noise |
| 04/13/1993 | US5201647 Rotary hydraulic vane device having a shaf seal |
| 04/07/1993 | EP0535295A1 Device for the treatment of highly viscous rubber or thermoplastic synthetic material |
| 04/06/1993 | US5199971 Of aluminum alloy containing silicon crystals and an intermetallic, and coated with a fluoropolymer; slidability |
| 04/01/1993 | DE4132194A1 Spectacle-shaped bearing body for gearwheel machine - comprises two bodies of wear resistant material, one on side facing gearwheels and both of steel and are stamped or sintered |
| 03/31/1993 | EP0534836A1 Hydraulic gear type machine with floating body |
| 03/31/1993 | EP0533950A1 Rotor made of aluminum alloy for oil pump and method of manufacturing said rotor |