| Patents for F01C 21 - Component parts, details, or accessories, not provided for in groups (5,689) |
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| 08/26/2004 | US20040165999 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 08/26/2004 | US20040165998 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 08/26/2004 | US20040163620 Rotating piston engine |
| 08/24/2004 | CA2138338C Air motor with offset front and rear exhausts |
| 08/19/2004 | US20040161357 Gear pump |
| 08/19/2004 | US20040160013 Vented high pressure shaft seal |
| 08/18/2004 | EP1447564A1 Rotor with flexible vanes for cooling pumps and manufacturing process |
| 08/18/2004 | EP1446582A1 Compressor with z-plate |
| 08/18/2004 | CN1162621C Volumetric pump |
| 08/17/2004 | US6776136 Elliptical rotary engine |
| 08/13/2004 | CA2456434A1 Rotor for cooling pumps, in particular for marine engines and relevant manufacturing process |
| 08/12/2004 | WO2004067915A1 Internal combustion engine with rotary pistons |
| 08/12/2004 | US20040156734 Scroll compressor |
| 08/12/2004 | US20040154329 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 08/11/2004 | CN1161547C Compressor |
| 08/10/2004 | US6772728 Supercharged radial vane rotary device |
| 08/10/2004 | CA2193750C Fixed-displacement vane-type hydraulic machine |
| 08/05/2004 | WO2004065795A1 Pump |
| 08/05/2004 | WO2004065794A1 Rotary compressor |
| 08/05/2004 | WO2004065762A1 Engine |
| 08/05/2004 | WO2004064992A1 Dividing device |
| 08/05/2004 | US20040151603 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 08/04/2004 | EP1443213A1 Vane type rotary machine |
| 08/04/2004 | EP1042614B1 Multiflow liquid ring pump |
| 08/04/2004 | CN1518638A High-low pressure dome type compressor |
| 08/04/2004 | CN1518634A 旋转活塞式机器 A rotary piston machine |
| 08/03/2004 | US6769886 Rotary vane pump with vane wear access port and method |
| 08/03/2004 | US6769880 Pressure blowdown system for oil injected rotary screw air compressor |
| 07/29/2004 | US20040146421 Vane pump having an abradable coating on the rotor |
| 07/29/2004 | US20040146414 Screw compressor with switched reluctance motor |
| 07/29/2004 | DE10311655A1 Impeller pump with/without a dosing device for conveying media comprises a channel system with removable suction/pressure connectors pressed/flanged as pump housing elements |
| 07/28/2004 | EP1441106A1 Vane pump with coated rotor |
| 07/22/2004 | US20040140322 Dividing device |
| 07/22/2004 | DE10292075T5 Drehkolbenmotor Rotary engine |
| 07/22/2004 | DE10001962B4 Rotationskolbenmaschine Rotary piston engine |
| 07/21/2004 | EP1438510A2 Vacuum pump |
| 07/15/2004 | WO2004059169A1 Compressor |
| 07/15/2004 | US20040136852 Vacuum pump with fail-safe vanes |
| 07/15/2004 | US20040136841 Gas compressor |
| 07/14/2004 | EP0931221B1 A rotary machine |
| 07/13/2004 | US6761546 Gear pump having bearings with cooling ducts |
| 07/13/2004 | US6761143 Coupling structure for expansion unit output shaft and driven-side transmission shaft |
| 07/08/2004 | WO2004057189A1 Chamber for compressor and compressor using the same |
| 07/08/2004 | WO2004033916A8 Rotary compressor |
| 07/08/2004 | US20040131477 Vane pump wear sensor for predicted failure mode |
| 07/08/2004 | DE20302989U1 Drehkolbenpumpe Rotary pump |
| 07/07/2004 | EP1434896A2 Multi-chamber installation for treating objects under vacuum, method for evacuating said installation and evacuation system therefor |
| 07/07/2004 | CN1510252A Rotary fluid machinery, blade fluid machinery and waste heat recovering device of IC engine |
| 07/07/2004 | CN1510250A Rotary fluid machinery, blade fluid machinery and waste heat recovering device of IC engine |
| 07/01/2004 | WO2004055331A1 Volume expander and fluid machine |
| 07/01/2004 | US20040126264 Compressor having cylindrical shape vane |
| 07/01/2004 | US20040126263 Vane of compressor |
| 07/01/2004 | US20040126262 Gas compressor |
| 07/01/2004 | DE10348845A1 Device for mounting the shaft of a rotary piston pump on one side comprises a roller bearing arranged on the bearing end of the shaft |
| 07/01/2004 | DE10259525A1 Conveyer unit for transporting fuel from a tank to a combustion engine has an overpressure valve mounted on the pressure cover |
| 06/30/2004 | EP1433953A2 Reversible pneumatic group with two stages |
| 06/30/2004 | EP1285149A4 Hinged rotor internal combustion engine |
| 06/30/2004 | EP1268980A4 Piston for an internal combustion engine |
| 06/30/2004 | CN1509379A 旋转式压缩机 Rotary compressor |
| 06/30/2004 | CN1509378A 旋转式压缩机 Rotary compressor |
| 06/30/2004 | CN1508428A Electric compressor fitted with exchanger |
| 06/24/2004 | WO2004054025A2 Device for supplying air to fuel cells |
| 06/24/2004 | WO2004053335A1 Rotary compressor |
| 06/24/2004 | WO2004053298A1 Volume expander and fluid machine |
| 06/24/2004 | US20040118146 Horizontal compressor end cap |
| 06/24/2004 | DE10331877A1 Elektrokompressor Electric compressor |
| 06/24/2004 | DE10258363A1 Device for supplying air to fuel cells has claw compressor with at least two mutually engaged compressor wheels, claw expansion device with at least two mutually engaged expansion device wheels |
| 06/24/2004 | DE10258341A1 Rotary piston motor or pump has pivoted vanes with bias springs to press vane ends against stator chamber wall |
| 06/23/2004 | CN1507541A 涡旋压缩机 Scroll Compressor |
| 06/23/2004 | CN1506585A Luminium parts and compressor assemblied by arc welding |
| 06/22/2004 | US6752608 Compressor crankshaft with bearing sleeve and assembly method |
| 06/22/2004 | US6752607 Apparatus for reducing friction loss in scroll compressor |
| 06/22/2004 | US6752604 Automatic wear indicator for sliding vane vacuum and gas pressure pumps |
| 06/17/2004 | US20040115072 Compressor and aluminum members assembled by arc welding |
| 06/17/2004 | US20040113109 Electro-hydrostatic actuator |
| 06/16/2004 | EP1429031A1 Aluminum compressor casing assembled by arc welding |
| 06/16/2004 | EP1428980A1 Rotary fluid machine |
| 06/16/2004 | EP1428978A1 Rotary fluid machine |
| 06/16/2004 | EP1428977A1 Rotary fluid machine |
| 06/16/2004 | EP1040259A4 Rotary engine having enhanced charged cooling and lubrication |
| 06/15/2004 | US6749411 Rotary vane hydraulic power device |
| 06/15/2004 | CA2192714C Quasiturbine (qurbine) zero vibration - continuous combustion rotary engine, compressor and pump |
| 06/10/2004 | US20040109779 Compressor with z-plate |
| 06/10/2004 | US20040109772 Electric compressor with inverter |
| 06/09/2004 | EP1379785A4 Scroll type compressor apparatus with adjustable axial gap and bimetallic orbital scroll |
| 06/03/2004 | US20040103661 Rankine cycle device |
| 06/03/2004 | DE10317571A1 Thrust ball bearing supporting orbiting rotor of air compressor has modified upper and lower races giving three-point contact with one point on lower race and two points on upper race |
| 06/03/2004 | DE10254162A1 Vane pump or compressor for liquid or gas has rotor performing oscillating motion with two vanes in working chamber bounded by fixed partitions and has set of one-way valves |
| 06/02/2004 | EP1424495A2 Vane pump |
| 06/01/2004 | US6743347 Molding exterior of bearing using aluminum material, forming oxide-coated layer on surface of bearing in sulfuric or oxalic acid electrolyte solution, electrolyzing bearing in ammonium thiomolybdate, infiltrating molybdenum emulsion into coating |
| 06/01/2004 | US6743004 Vacuum pump |
| 05/27/2004 | WO2004044432A1 Compressor |
| 05/26/2004 | EP1421283A1 Wing cell pump |
| 05/26/2004 | EP1421281A1 Gear pump |
| 05/26/2004 | CN1500182A Scroll type compressor appts. with adjustable axial gap and bimetallic orbital scroll |
| 05/26/2004 | CN1499080A 螺杆式压缩机 Screw compressors |
| 05/25/2004 | US6739833 Compressor with built-in motor, and mobile structure using the same |
| 05/19/2004 | EP1163451B1 Rotary helical screw-type compressor |
| 05/19/2004 | DE10251846A1 Pumpenantrieb Pump drive |
| 05/19/2004 | DE10251508A1 Vane cell machine has sealing rails with cylindrical contact faces adapted to curvature of cylindrical housing bore surface, and fastened to vane sliders |