| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
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| 11/15/2001 | DE10020162A1 Verfahren und Vorrichtung zum Herstellen eines Massivstoff oder Schaumstoff bildenden, fließfähigen Reaktionsgemisches Method and apparatus for producing a solid material or foam-forming, flowable reaction mixture |
| 11/14/2001 | CN1322281A Rotary machine |
| 11/14/2001 | CN1322052A Enclosed electric compressor |
| 11/14/2001 | CN1321575A Flowing reactive component pressurizing process and equipment |
| 11/14/2001 | CN1074815C Planetary mechanism comprising cylindrical inner gear and non-rounded gear, and case containing same |
| 11/13/2001 | US6315537 Spin pump having a cooling sleeve surrounding the drive shaft |
| 11/13/2001 | US6314642 Method of making an internal gear pump |
| 11/07/2001 | EP1151199A1 Twin delivery screws provided for installation in positive-displacement machines, especially pumps |
| 11/07/2001 | CN1321223A Gear pump for pumping highly viscous fluids |
| 11/07/2001 | CN1321216A Pump |
| 11/06/2001 | US6312243 Roller vane pump having straight line segments on the rotor |
| 11/06/2001 | US6312241 Gear pump |
| 11/01/2001 | WO2001081730A1 Improved stator especially adapted for use in a helicoidal pump/motor and method of making same |
| 11/01/2001 | US20010036411 Reversible variable displacement hydraulic pump and motor |
| 10/31/2001 | EP1150014A2 Internal gear oil pump |
| 10/31/2001 | EP1149674A2 Verfahren und Vorrichtung zur Druckbeaufschlagung von fliessfähigen Reaktionskomponenten |
| 10/31/2001 | EP1149244A1 Device for reducing the axial load of a pump which delivers fluid |
| 10/31/2001 | DE10020568A1 Ölpumpe für Umlaufschmierung von Brennkraftmaschinen Oil pump for circulating lubrication of internal combustion engines |
| 10/31/2001 | DE10019516A1 Toothed wheel used for a gearing is made from a rust-free steel containing carbon, nitrogen, chromium, and molybdenum |
| 10/31/2001 | DE10019115A1 Pump, preferably vane cell or gear wheel pump, has hand pump device integrated into pump housing that feeds into suction side flow path of transport unit |
| 10/30/2001 | US6309199 Assemblies for modular fluid pump |
| 10/30/2001 | US6309195 Internally profiled stator tube |
| 10/25/2001 | WO2001079699A1 Gear-wheel pump, in particular for a high-pressure fuel pump |
| 10/25/2001 | WO2001079659A1 Rotary vane pump |
| 10/25/2001 | WO2001078967A1 Gear pump extruders |
| 10/25/2001 | US20010033803 Vane pump |
| 10/25/2001 | US20010033797 Regulatable pump |
| 10/25/2001 | DE10018749A1 Quantity-controllable fly pump has swivel control ring with overflow cross-sections and curved recess divided by sealing strip into two opposite chambers to reduce delivery when friction force is too high |
| 10/25/2001 | DE10018348A1 Gearwheel pump for high pressure fuel pump has housing with gear wheels and groove having first and second sections with different spacing at bottom from tooth tips producing narrow gap for better pump action |
| 10/24/2001 | EP1148245A2 Pump with no valves |
| 10/24/2001 | EP1148244A2 Variable displacement pump |
| 10/24/2001 | EP1148243A2 Plastic pump rotor with protection surface |
| 10/24/2001 | CN1318695A Toothed variable-volume device |
| 10/24/2001 | CN1073671C Gear pump or motor |
| 10/18/2001 | US20010031204 Variable displacement pump |
| 10/18/2001 | DE10024849C1 Kunststoffpumpenteil mit Schutzoberfläche Plastic pump component with protective surface |
| 10/17/2001 | EP1144868A1 Hydraulic machine comprising dual gerotors |
| 10/17/2001 | EP1144867A2 Pump |
| 10/17/2001 | CN2454567Y Gear-conveying pump |
| 10/17/2001 | CN1317644A Volumetric pump |
| 10/16/2001 | US6302666 Downhole roller vane motor |
| 10/16/2001 | US6301782 Apparatus and method for controlling angular relation between two rotating shafts |
| 10/11/2001 | US20010028857 Hydristor control means |
| 10/11/2001 | US20010027652 High efficiency turbine |
| 10/11/2001 | DE10119373A1 Plate piston IC engine has a reciprocating plate inside cylindrical sector combustions chambers |
| 10/11/2001 | DE10015139A1 Motorpumpenaggregat Motor pump unit |
| 10/11/2001 | DE10014278A1 Hydraulic pump or motor has two to one transmission ratio between rotor shaft and rotating disc valve shaft, and two cut-outs with connecting holes are symmetrically formed on each rotating disc valve for pressure compensation |
| 10/10/2001 | CN2453162Y Cam rotor tpye vane pump |
| 10/10/2001 | CN2453161Y Cage type oil delivery pump |
| 10/10/2001 | CN2453160Y Large flow-rate glue metering pump |
| 10/10/2001 | CN2453159Y 柔性齿轮泵 Flexible gear pump |
| 10/09/2001 | US6299422 Fluid pump with a flexible toothed belt |
| 10/04/2001 | WO2001073295A1 Motor-pump unit |
| 10/04/2001 | US20010026767 Trochoid gear type fuel pump |
| 10/04/2001 | US20010026765 Helical blade type compressor having a helical blade in a stationary cylinder |
| 10/04/2001 | EP1138947A2 Vane pump |
| 10/04/2001 | EP1015735B1 Screw conveyor for the transport of liquid substances and/or lumps of materials |
| 10/04/2001 | DE10013760A1 Internal cog pump whose internal gear runs on roller bearings |
| 10/03/2001 | CN2451762Y Vane pump with easy to retract vane |
| 10/02/2001 | US6296463 Segmented metering die for hot melt adhesives or other polymer melts |
| 10/02/2001 | US6296456 Positive displacement pump systems with a variable control orifice |
| 09/29/2001 | CA2340548A1 Plastic gear pump housing |
| 09/27/2001 | WO2001071191A2 Control for progressive cavity pump |
| 09/27/2001 | US20010024618 Adjustable-displacement gear pump |
| 09/27/2001 | DE10022097C1 Rotary piston pump, especially for delivery of fluids containing solids, has exchangeable, detachably mounted strip installed on each acutely angled edge of each displacement vane |
| 09/27/2001 | DE10015020A1 Verdrängerzellenpumpe Verdrängerzellenpumpe |
| 09/26/2001 | EP1135214A1 A gear pump and replaceable reservoir for a fluid sprayer |
| 09/26/2001 | CN1314551A 行星转子泵 Planetary rotor pump |
| 09/26/2001 | CN1071844C Positive-displacement rotary tilted plate type compressor with improved rotary tilted plate supporting device |
| 09/25/2001 | US6293777 Hydraulic positive displacement machine |
| 09/20/2001 | DE10040692C1 Internal gear pump to supply fuel from suction to pressure channel has internally toothed ring gear and eccentric outer toothed pinion driven on drive shaft, to form pump action |
| 09/20/2001 | DE10012406A1 Rotary displacement pump has sealing bars at the blade with a spring to keep them pressed against the inner wall of the pump housing to maintain a seal at low start-up speeds |
| 09/20/2001 | DE10011708A1 Multi-section casing for gear machine has means between casing body and cover which counteracts operating pressure conditioned expansion of casing body taking place in direction of supply channels |
| 09/19/2001 | EP1134417A2 Positive displacement pump |
| 09/19/2001 | EP1133640A1 Rotary pump |
| 09/19/2001 | CN2448953Y Combined screw closed engaging device |
| 09/18/2001 | US6290472 Rotary compressor with vane body immersed in lubricating fluid |
| 09/18/2001 | CA2018742C Rotary device |
| 09/13/2001 | WO2001066949A1 Inverse toothed rotor set |
| 09/13/2001 | US20010021349 Oil free screw compressor |
| 09/13/2001 | DE10011487A1 Mixture sieve - catchment basket at inlet of eccentric worm pump for moving moist mixtures such as plaster or tiled floor mortar is at pump inlet in storage container on pump drive shaft with which it rotates |
| 09/12/2001 | EP1132619A2 Multicomponent built casing |
| 09/12/2001 | EP1132618A2 A positive-displacement rotary pump with helical rotors |
| 09/12/2001 | CN2447542Y Double-screw pump |
| 09/12/2001 | CN1312436A Double-function variable vane pump |
| 09/12/2001 | CN1312435A Butterfly volume variator |
| 09/11/2001 | US6287361 Admixing spray-compacted aluminum-silicon alloy powder that is a waste material from manufacturing cylinder liners, and unalloyed al powder to form a mixture; pressing the mixture to form an unmachined part of the oil pump gear; sintering |
| 09/11/2001 | US6287099 Scroll compressor |
| 09/11/2001 | US6287094 Inlet tube diffuser element for a hydraulic pump |
| 09/11/2001 | US6287088 Oil free screw compressor |
| 09/11/2001 | US6286566 Method and apparatus for accurately dispensing liquids and solids |
| 09/07/2001 | WO2001065118A1 Hydraulic pressure transformer |
| 09/06/2001 | DE10010170A1 Toothed gear arrangement for a pump or motor has an outer rotor and an inner rotor with planetary gear wheels rolling around fine teeth inside the outer rotor |
| 09/05/2001 | EP1130262A2 Gear pump with flow capacity changing sliding unit |
| 09/05/2001 | EP1129293A1 Rotary hydraulic machine |
| 09/05/2001 | EP1129292A1 Worm for an eccentric screw pump or a subsurface drilling motor |
| 09/05/2001 | CN2446306Y Miniature water/gas dual-purpose pump |
| 09/05/2001 | CN1311396A 旋转活塞泵 Rotary piston pump |
| 09/04/2001 | US6283736 Hydrostatic pump or engine with infinitely variable debit or impulse |
| 09/04/2001 | US6283735 Variable-delivery external gear pump |