| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 09/04/2001 | US6283734 Gear pump and a method for positioning a gear pump shaft |
| 08/30/2001 | DE10102852A1 Drehschieberverdrängerpumpe Drehschieberverdrängerpumpe |
| 08/29/2001 | EP0931221A4 A rotary machine |
| 08/29/2001 | CN1310299A Double-wheel gear compressor pump |
| 08/28/2001 | US6281607 Electric motor with vibration attenuation |
| 08/28/2001 | US6280169 Rotary machine |
| 08/28/2001 | US6280167 Gear ring pump having a housing wall with a hollow cone recess |
| 08/28/2001 | US6280159 Valve arrangement and pump for a gear system |
| 08/28/2001 | US6280150 Variable displacement pump |
| 08/23/2001 | US20010016173 Oil pump |
| 08/23/2001 | DE10006629A1 Zahnrad aus Kunststoff für eine Zahnradpumpe Plastic gear for a gear pump |
| 08/23/2001 | DE10005779A1 Vorrichtung mit wenigstens einem hydraulisch steuerbaren Arbeitsmittel Device with at least one hydraulically controllable work equipment |
| 08/22/2001 | EP1126175A1 Rotary machine |
| 08/22/2001 | EP1126174A2 Plastic gear for gear pump |
| 08/22/2001 | CN2444070Y Suction pump |
| 08/22/2001 | CN2444069Y Warm keeping pump with internal tooth for asphalt |
| 08/22/2001 | CN1309243A Oil delivering pump |
| 08/16/2001 | WO2001059301A1 Control device for positive displacement pumps |
| 08/16/2001 | WO2001059260A1 Fluid displacement pump with backpressure stop |
| 08/16/2001 | WO2001059259A2 Hydristor control means |
| 08/16/2001 | EP1123191A1 Extrusion method, extruder and product produced thereby |
| 08/16/2001 | DE10006140A1 Control system for vane and other displacement pumps has a thickened section at the control pin to prevent temporary increase in the pumped volume/pressure on a rapid acceleration |
| 08/15/2001 | CN2443172Y External circulation rotor thickened oil pump |
| 08/14/2001 | US6273695 Sickleless internal gear wheel pump with sealing elements inserted into the tooth tips |
| 08/14/2001 | US6273694 Rotary-piston machine |
| 08/09/2001 | WO2001056850A1 Brake unit |
| 08/09/2001 | US20010012486 Hydraulic delivery device |
| 08/09/2001 | DE10104222A1 Bremsvorrichtung mit einer Rotationspumpe Brake device with a rotary pump |
| 08/09/2001 | DE10005226A1 Roller-fitted cellular pump for vehicle engines specifies acute angle between groove flanks trailing and leading roller so roller lies between rotor axis and angle apex. |
| 08/09/2001 | DE10004711A1 Flügelzellenpumpe Vane pump |
| 08/09/2001 | DE10004518A1 Bremsanlage Brake system |
| 08/08/2001 | CN2442001Y Full gear capacity variable device |
| 08/08/2001 | CN1069377C Variable displacement hydrostatic device and neutral return mechanism therefor |
| 08/07/2001 | US6270329 Rotary compressor |
| 08/07/2001 | US6270324 Positive displacement pump and thrust bearing assembly |
| 08/07/2001 | US6270169 Rotary pump and braking device using same |
| 08/02/2001 | US20010010800 Displacement type fluid machine |
| 07/31/2001 | US6267566 Oil pump |
| 07/26/2001 | WO2001053724A1 Dual gerotor pump for use with automatic transmission |
| 07/26/2001 | WO2001053711A1 Hybrid bearing |
| 07/26/2001 | WO2001053702A1 Hydraulic fluid vane pump |
| 07/26/2001 | WO2001053701A1 Hydraulic vane pump |
| 07/26/2001 | US20010009150 Fluid displacement pump with backpressure stop |
| 07/26/2001 | DE10002708C1 Hydraulische Zahnradmaschine Hydraulic gear machine |
| 07/25/2001 | EP1118772A1 Hydraulic gear machine |
| 07/25/2001 | EP1117932A1 Gear pump for pumping highly viscous fluids |
| 07/25/2001 | CN2440124Y Gear pump with two-way axial-sealing compensation device |
| 07/25/2001 | CN1068935C Metal stator screw pump |
| 07/24/2001 | US6264451 Pump equipment with plural rotary pumps and method for assembling same |
| 07/24/2001 | US6264449 Plastic toothed wheel for a toothed wheel pump |
| 07/18/2001 | EP1115979A1 Housing construction for accommodating a toothed ring micropump |
| 07/18/2001 | EP0990198A4 Method and apparatus for accurately dispensing liquids and solids |
| 07/17/2001 | CA2143719C Vane cell machine |
| 07/12/2001 | WO2001050021A1 A diaphragm pump |
| 07/12/2001 | DE19962554A1 Adjustable rotating lubrication pump for an internal combustion engine has an eccentric hub operating inside the casing with fitted to a guide ring |
| 07/12/2001 | DE10058883A1 Geared pump with hollow gear contains sickle-shaped space here filled out by first and second fillers in one or two pieces and on opposite sides of interposed filler pin. |
| 07/11/2001 | CN2438849Y Low-rotating speed vane pump |
| 07/10/2001 | US6257854 Double screw rotor assembly having means to automatically adjust the clearance by pressure difference |
| 07/10/2001 | US6257853 Hydraulic motor with pressure compensating manifold |
| 07/10/2001 | US6257195 Internal combustion engine with substantially continuous fuel feed and power output |
| 07/05/2001 | WO2001048382A1 Pump body for a medical gear-pump |
| 07/05/2001 | WO2001048355A1 Tooth set for a hydraulic machine |
| 07/05/2001 | WO2001048354A1 Tooth set for a hydraulic machine |
| 07/05/2001 | DE19962804A1 Zahnrad für eine hydraulische Maschine Gear for a hydraulic machine |
| 07/05/2001 | DE19962802A1 Zahnsatz für eine hydraulische Maschine Set of teeth for a hydraulic machine |
| 07/05/2001 | DE19962498A1 Pumpenkörper für eine medizinische Zahnradpumpe Pump body for medical gear pump |
| 07/05/2001 | DE19962101A1 Worm pump for transporting paste material, e.g. poured asphalt, has worm whose surface is of relatively soft material and stator surface enclosing worm of relatively hard material |
| 07/05/2001 | DE19961401A1 Hydraulische Maschine Hydraulic machine |
| 07/05/2001 | DE19961400A1 Hydraulic pump or motor, e.g. gerotor motor has annular gear with teeth formed by rollers of greater axial length than toothed gear, and held in plates |
| 07/04/2001 | EP1113175A1 Vane type rotary machine |
| 07/03/2001 | US6254366 Replaceable seal having a friction fit |
| 06/28/2001 | WO2001046591A1 Variable displacement vane pump |
| 06/28/2001 | WO2001046560A1 Hydraulic machine |
| 06/28/2001 | US20010005486 Progressive cavity helical device |
| 06/28/2001 | DE10062650A1 Steuerventil für hydraulische Kupplungen Control valve for hydraulic couplings |
| 06/27/2001 | EP1110000A2 Internal gear machine for reversed operation in a closed hydraulic circuit |
| 06/27/2001 | CN2436689Y High-performance double-action hydraulic vane pump |
| 06/27/2001 | CN1300905A Pump with bottle gourd-shaped rotor |
| 06/27/2001 | CN1067746C Non-round internal engaged gear turning multi-purpose pump |
| 06/26/2001 | US6250900 Positive displacement hydraulic unit with near-zero side clearance |
| 06/21/2001 | WO2001044615A2 Composite stator for drilling motors and method of constructing same |
| 06/21/2001 | US20010004447 Pump impellers |
| 06/21/2001 | US20010004435 Rotary pump with hydrodynamically suspended impeller |
| 06/20/2001 | EP1108144A1 Pump |
| 06/20/2001 | CN1299930A Toothed screw bolt |
| 06/20/2001 | CN1299929A Toothed screw bolt |
| 06/20/2001 | CN1299928A Screw bolt with new type of profile |
| 06/13/2001 | DE19956520A1 Vorrichtung zur Reduzierung der Axialkraftbelastung einer ein Fluid fördernden Pumpe A device for reducing the axial loading on a fluid delivering pump |
| 06/13/2001 | CN2434449Y Vane type fluid rotor pump |
| 06/13/2001 | CN1299001A Gear mechanism |
| 06/12/2001 | US6244843 Internal gear pump |
| 06/12/2001 | US6244842 Pump |
| 06/12/2001 | US6244841 Vacuum pumps |
| 06/12/2001 | US6244839 Pressure compensated variable displacement internal gear pumps |
| 06/12/2001 | US6244830 Vane-cell pump |
| 06/12/2001 | US6244240 Rotary positive-displacement scavenging device for rotary vane pumping machine |
| 06/07/2001 | US20010002981 Rotary compressor with vane body immersed in lubricating fluid |
| 06/06/2001 | CN2433423Y Multielement compound vortex steam pump |
| 06/05/2001 | USH1966 Integrated motor/gear pump |
| 06/05/2001 | US6241499 Rotary piston engine |