| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 03/31/1993 | CN2128978Y Dual-purpsoe blance gear pump |
| 03/31/1993 | CN1070453A Double-action automatic variable breakaway stator paddle pump |
| 03/30/1993 | CA1315153C Bi directional lubrication for a reversible hydraulic gear device |
| 03/23/1993 | US5195882 Gerotor pump having spiral lobes |
| 03/23/1993 | US5195880 Eccentric screw pump with reversible rotor |
| 03/23/1993 | US5195631 Optimum screw |
| 03/17/1993 | EP0531423A1 Postmix beverage dispensing system |
| 03/04/1993 | WO1993004286A1 Capacity control for screw compressors |
| 03/03/1993 | CN1069552A Gear pump with variable capacity |
| 03/02/1993 | US5190450 Gear pump for high viscosity materials |
| 02/24/1993 | EP0528004A1 Hydraulic pump for a vehicle engine. |
| 02/23/1993 | US5188523 Internal gear machine having a filler piece with pivot pins and a separating gap |
| 02/23/1993 | US5188522 Vane pump with a throttling groove in the rotor |
| 02/09/1993 | US5184947 Fully variable output hydraulic gear pump having an axially translatable gear |
| 02/02/1993 | US5183392 Combined centrifugal and undervane-type rotary hydraulic machine |
| 01/26/1993 | US5181835 Hydraulic pump |
| 01/21/1993 | WO1993001394A1 Gerotor device with biased orbiting valve and drain connection through wobble stick |
| 01/21/1993 | DE4123384A1 Non-pulsating pump for volatile fuels - has electric driven pair of meshing spiral shafts inside motor housing |
| 01/20/1993 | EP0523317A2 Rotary piston pump |
| 01/19/1993 | US5180299 Roots type supercharger |
| 01/19/1993 | US5180296 Hydraulic machine having axial user ports |
| 01/19/1993 | CA1312781C Rotary valve plate for internal gear device |
| 01/14/1993 | DE4221720A1 Hydraulische druckvorrichtung Hydraulic pressure device |
| 01/12/1993 | US5178528 Hydraulic generator-receiver for power transmission |
| 01/12/1993 | US5177966 Fluid pump arrangement with flow regulation feature |
| 01/07/1993 | DE4122495A1 Screw spindle pump - has drive gear and pump spindle formed as single component, with drive spindle having shaft and gear section meshing with further gear on driven spindle |
| 01/07/1993 | DE4121684A1 High pressure feed pump for chemical applications - has offset rotors for providing smooth flow without pulsation |
| 01/07/1993 | DE4121074A1 External gear pump - has main drive gear fixed inside housing and driven gear adjusted by pressure differential piston action |
| 12/30/1992 | EP0520943A1 Positive displacement pump |
| 12/30/1992 | CN2126329U Internal-engagement gear pump |
| 12/29/1992 | US5174737 Fluid compressor with spiral blade |
| 12/23/1992 | WO1992022493A1 Postmix beverage dispensing system |
| 12/23/1992 | EP0519276A1 Supercharger carry-over venting means |
| 12/23/1992 | EP0519154A1 Method for generating high fluid pressure impulses, device and use of said device as high pressure cleaner |
| 12/23/1992 | EP0377730B1 Scroll fluid device using flexible toothed ring synchronizer |
| 12/23/1992 | CN2125735U 齿轮泵 Gear pumps |
| 12/23/1992 | CN1019593B Spinning pump |
| 12/23/1992 | CA2111478A1 Postmix beverage dispensing system |
| 12/22/1992 | US5173043 Reduced size hydraulic motor |
| 12/22/1992 | CA1311729C Scroll machine with plural pressurized seal enhancing chambers and static vane mounts |
| 12/21/1992 | CA2071052A1 Generating high pressure pulses in liquid |
| 12/17/1992 | DE4119160A1 Fuel seed pump - has wear resistant components in bore of sintered intermediate plate metal |
| 12/15/1992 | US5171139 Moineau motor with conduits through the stator |
| 12/15/1992 | US5171138 Composite stator construction for downhole drilling motors |
| 12/15/1992 | US5171131 Power transmission |
| 12/10/1992 | DE4121717A1 Eccentric scroll pump - has rotor connected to drive unit and feeding hopper with storage space at base for handling highly viscous material |
| 12/09/1992 | EP0517014A1 Lubrication gear pump for internal combustion engines, especially for vehicles |
| 12/09/1992 | CN2124326U Roots water pump |
| 12/08/1992 | US5169292 Pump for viscous fluids |
| 12/07/1992 | WO1992021856A1 A multi-chamber rotary lobe fluid machine with positive sliding seals |
| 12/01/1992 | CA1310862C Turbine driven rotary pump |
| 11/26/1992 | WO1992020923A1 Casing for an eccentric worm-screw pump |
| 11/26/1992 | WO1992020922A1 Fully variable output hydraulic gear pump having an axially translatable gear |
| 11/25/1992 | CN2122950U Star or moon pump |
| 11/24/1992 | US5165880 Gerotor device with biased orbiting valve and drain connection through wobblestick |
| 11/24/1992 | US5165868 Magnetically driven pump |
| 11/24/1992 | US5165865 Intake neck connection for a hydraulic pump |
| 11/19/1992 | EP0513998A1 Power transmission |
| 11/18/1992 | CN2122247U Tunnel type n step high pressure geared pump |
| 11/17/1992 | US5163826 Crescent gear pump with hypo cycloidal and epi cycloidal tooth shapes |
| 11/17/1992 | US5163824 Rubber-geared pump with shaftless gear |
| 11/15/1992 | CA2066131A1 Power transmission |
| 11/12/1992 | WO1992019844A1 Revolting-rotating vane meter-motor-pump |
| 11/12/1992 | DE4115087A1 Externally toothed hydraulic motor - pairs large gearwheel with much smaller one |
| 11/11/1992 | CN2121554U Reversible liquid suction machine |
| 11/10/1992 | US5161962 Fluid pump comprised by blades |
| 11/10/1992 | US5161961 Gear pump with counterbalanced radial forces and two piece radial seals |
| 11/04/1992 | CN2120901U Elliptical rotor dust constant contrast pump |
| 11/04/1992 | CN2120900U Three-axle containment pump |
| 10/28/1992 | CN2120202U Internal link positive-displacement pump |
| 10/22/1992 | DE4112868A1 Displacement pump with control valve - has valve cone with collar which creates restrictor and pressure area |
| 10/21/1992 | EP0509218A2 Gear pump |
| 10/20/1992 | US5156541 Revolving vane pump-motor-meter with a toroidal working chamber |
| 10/20/1992 | US5156540 Internal gear fuel pump |
| 10/20/1992 | US5156301 Constant ratio post-mix beverage dispensing valve |
| 10/16/1992 | CA2062252A1 Gear wheel assembly for hydraulic purposes, and method assembling the same |
| 10/15/1992 | WO1992017302A1 Rotor made of aluminum alloy for oil pump and method of manufacturing said rotor |
| 10/15/1992 | WO1992017264A1 Device and process using a worm conveyor for separating materials, in particular solid or coagulated materials, from liquids and/or for concentrating solutions |
| 10/14/1992 | EP0508285A1 Gear metering pump for compounded elastomeric material |
| 10/14/1992 | CN2118840U High pressure oil supply lubrication gear oil pump shaft sleeve |
| 10/13/1992 | US5154593 Vane pump with annular groove in rotor which connects undervane chambers |
| 10/09/1992 | CA2065502A1 Gear metering pump for compounded elastomeric material |
| 10/08/1992 | DE4111166A1 Eccentric worm pump - has rotor having single path helix, and uses flexible layer on double path stator |
| 10/07/1992 | EP0507512A1 Oil pumps |
| 10/07/1992 | EP0507200A1 Rotary vaned transferring device |
| 10/07/1992 | CN2118181U Planetary gear pump |
| 10/06/1992 | US5152683 Double rotary piston positive displacement pump with variable offset transmission means |
| 10/06/1992 | US5152672 Rotary pump with pressure switch |
| 09/30/1992 | CN2117479U Vacuum oil drain pump |
| 09/30/1992 | CN1018468B Dual-vane three-action fluid machinery |
| 09/24/1992 | DE4109149A1 Aluminium alloy control disc for vane cell pump |
| 09/23/1992 | EP0504863A1 An electric pump for the circulation of a liquid, for example in an internal-combustion engine |
| 09/17/1992 | WO1992015785A1 Fuel-feed unit for supplying fuel from a vehicle fuel tank to the engine |
| 09/17/1992 | WO1992015773A1 Hydraulic pump for a vehicle engine |
| 09/15/1992 | US5147194 Rotary piston machine with a protuberance in the cylinder wall |
| 09/08/1992 | US5145347 Gerotor pump with blind-end groove on each lobe of the annulus |
| 09/08/1992 | US5145343 Helical gear pump and stator with constant rubber wall thickness |
| 09/08/1992 | US5145342 Stator for eccentric spiral pump |
| 09/08/1992 | US5145341 Protective shroud for the shaft of a helical gear pump |
| 09/08/1992 | US5145329 Homoplanar brushless electric gerotor |