| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 04/01/1998 | EP0833068A1 Slide bearing, especially for a gear pump |
| 04/01/1998 | EP0833056A2 Method for shaft positioning and gear pump |
| 03/31/1998 | US5733113 For use in a borehole |
| 03/31/1998 | US5733111 Gerotor pump having inlet and outlet relief ports |
| 03/31/1998 | US5733109 Variable displacement vane pump with regulated vane loading |
| 03/25/1998 | EP0831232A2 Gear pump |
| 03/25/1998 | EP0831231A2 Gear pump |
| 03/25/1998 | EP0830934A2 Positive displacement pumps |
| 03/25/1998 | EP0830528A1 Hydraulic coupling for vehicle drivetrain |
| 03/25/1998 | EP0830510A1 Microfabricated, tube located gear pump system |
| 03/25/1998 | CN1177062A Turbine type compressor |
| 03/19/1998 | WO1998011351A1 Screw rotor set |
| 03/18/1998 | EP0829643A1 Vane type rotary pump |
| 03/12/1998 | WO1998010193A1 Rotary piston regulating device |
| 03/12/1998 | WO1998010192A1 Vane cell pump |
| 03/12/1998 | DE19730988A1 Rotary piston displacement pump |
| 03/12/1998 | DE19712169C1 Internal-gear pump without crescent components |
| 03/12/1998 | DE19637224A1 Roller cell pump etc |
| 03/11/1998 | EP0828077A1 Zirconia and zirconia composite ceramic shafts for gear micropumps and method of making same |
| 03/11/1998 | EP0827484A1 Juice concentrate package for postmix dispenser |
| 03/10/1998 | US5725362 Pump assembly |
| 03/05/1998 | DE19737846A1 Oil pump |
| 03/05/1998 | DE19635801A1 Hochdruckpumpe mit Arbeitsschiebern High pressure pump to work slides |
| 03/04/1998 | EP0826883A2 Rotary piston pump |
| 03/03/1998 | US5722820 Progressing cavity pump having less compressive fit near the discharge |
| 03/03/1998 | US5722815 Positive displacement pump |
| 02/26/1998 | DE19633984A1 Eccentric screw action pump |
| 02/25/1998 | EP0708886B1 Rotator |
| 02/24/1998 | US5720603 Vane pump |
| 02/19/1998 | DE19631974A1 Vane type fluid pump or motor |
| 02/12/1998 | WO1998005586A1 Dispensing apparatus including a pump package system |
| 02/11/1998 | EP0823024A1 Rotary pump |
| 02/11/1998 | CN1172907A Spool valve wheel motor |
| 02/10/1998 | US5716201 Variable displacement vane pump with vane tip relief |
| 02/05/1998 | WO1998004825A1 Fuel injection pump for internal combustion engines |
| 02/05/1998 | DE19631910A1 Hydraulic toothed ring machine |
| 02/05/1998 | DE19630537A1 Kraftstoffeinspritzpumpe für Brennkraftmaschinen Fuel injection pump for internal combustion engines |
| 02/04/1998 | EP0822333A2 Internal gear hydraulic machine |
| 02/04/1998 | EP0821761A1 Rotary pump with single resilient vane |
| 02/04/1998 | CN1172215A Mixed transfer pump with internal compression screw arbor |
| 02/03/1998 | US5713726 Pump apparatus |
| 01/29/1998 | WO1998003794A1 Rotary assembly |
| 01/28/1998 | EP0820817A2 Metering gearhead dispensing apparatus |
| 01/27/1998 | US5711660 Internal gear type rotary pump having a relief groove |
| 01/27/1998 | US5711408 Reversible gerotor pump |
| 01/23/1998 | CA2208395A1 Metering gearhead dispensing apparatus |
| 01/22/1998 | DE19641779C1 Hydraulic motor designed for quiet running |
| 01/21/1998 | EP0819854A2 Motor-driven Hydraulic pump and driving coupler used in the same |
| 01/21/1998 | EP0819853A2 Rotary pump |
| 01/21/1998 | EP0819219A1 Positive displacement hydraulic machine |
| 01/21/1998 | EP0819218A1 Positive displacement hydraulic machines |
| 01/21/1998 | CN1170828A Elliptical-rotor single-screw pump |
| 01/20/1998 | US5709540 Rotary pump with single elastic vane |
| 01/17/1998 | CA2210621A1 Motor-driven hydraulic pump and driving coupler used in the same |
| 01/14/1998 | EP0817802A1 Method of producing solutions of cellulose in water-containing tertiary-amin-n-oxides |
| 01/14/1998 | EP0754273B1 Mechanical oil pump for a variable speed hermetic compressor |
| 01/14/1998 | CN1170085A Improvements in drive systems |
| 01/13/1998 | US5707224 Liquid pump having an elongate slider and a pair of rotating disks |
| 01/08/1998 | DE19728498A1 Pump handling pasty cosmetics or foodstuffs |
| 01/07/1998 | EP0816681A2 Vane pump |
| 01/07/1998 | EP0816680A2 Vane pump |
| 01/07/1998 | CN1169511A Gear pump for use in electrically-operated sealed compressor |
| 01/06/1998 | US5704774 Pump with twin cylindrical impellers |
| 01/02/1998 | DE19725195A1 Cellular flywheel pump |
| 12/31/1997 | WO1997049915A1 Vane pump |
| 12/31/1997 | CN2271623Y Fluid transporting blower pump |
| 12/30/1997 | US5702242 Vane pump |
| 12/30/1997 | US5702234 Fluid pump with bearing set having lubrication path |
| 12/30/1997 | CA2088662C Multi-chamber rotary lobe fluid machine with positive sliding seals |
| 12/29/1997 | EP0814264A1 Spool valve wheel motor |
| 12/29/1997 | EP0813429A1 Device of the controlled injection of a programmable quantity of liquid |
| 12/18/1997 | WO1997047886A1 Progressive cavity pump |
| 12/18/1997 | WO1997047885A1 Bidirectionally operable, unidirectionally feeding pump |
| 12/18/1997 | DE19630678A1 Piston pump |
| 12/18/1997 | CA2264089A1 Progressive cavity pump |
| 12/16/1997 | US5697527 Dispensing Apparatus |
| 12/11/1997 | WO1997034085A3 Sliding vane pump with plastic housing |
| 12/11/1997 | DE19622722A1 Micro-motor and micro-pump e.g. for technical and medical fields |
| 12/11/1997 | DE19622519A1 Hydraulic machine, especially gearwheel pump |
| 12/10/1997 | EP0811787A1 Hydrostatic transmission |
| 12/10/1997 | EP0811767A1 Gear oil pump for hermetic compressor |
| 12/10/1997 | EP0811765A2 Internal combustion engine with two-stage internal gear pump |
| 12/10/1997 | CN2270131Y Roller-type oil pump |
| 12/09/1997 | CA2078956C Hydraulic machine of the gear type |
| 12/04/1997 | WO1997045641A1 Progressing cavity pump |
| 12/04/1997 | DE19721582A1 Barrier vane pump for motor vehicle power steering |
| 12/04/1997 | DE19623169A1 Vane pump with rotor |
| 12/03/1997 | EP0810373A2 Vane pump |
| 12/03/1997 | EP0810372A2 Vane pump |
| 12/03/1997 | EP0810371A2 Rotor-type pump |
| 12/03/1997 | EP0749530B1 Dosing cap |
| 12/02/1997 | US5692888 Gear train mechanism having reduced leakage |
| 12/02/1997 | US5692883 Compact electro-hydraulic unit |
| 11/25/1997 | US5690481 Internal-gear machine having a divided filling portion |
| 11/25/1997 | US5690475 Scroll compressor with overload protection |
| 11/20/1997 | WO1997043518A1 Hydraulic vane pump with flexible band control |
| 11/20/1997 | DE19630975A1 Hydraulic machine with toothed ring for pumps |
| 11/18/1997 | US5688114 Progressing cavity pumps with split extension tubes |
| 11/13/1997 | WO1997022807A3 Vane pump for conveying viscous substances |
| 11/13/1997 | DE19719692A1 Reversible rotation gear pump |