| Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462) |
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| 06/30/2004 | EP1433957A1 Scroll compressor |
| 06/30/2004 | EP1433956A1 Scroll compressor |
| 06/30/2004 | EP1433953A2 Reversible pneumatic group with two stages |
| 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 | CN1509377A Method for making scroll mechine |
| 06/30/2004 | CN1508941A Stator structure for rotary compressor |
| 06/30/2004 | CN1508498A Oil-separator in pipeline |
| 06/30/2004 | CN1508438A Compressor and its lubricant separation mechanism |
| 06/30/2004 | CN1508436A 涡旋压缩机 Scroll Compressor |
| 06/30/2004 | CN1508428A Electric compressor fitted with exchanger |
| 06/29/2004 | US6755632 Scroll-type compressor having an oil communication path in the fixed scroll |
| 06/29/2004 | US6755039 Screw refrigerating apparatus |
| 06/24/2004 | WO2004054025A2 Device for supplying air to fuel cells |
| 06/24/2004 | WO2004053335A1 Rotary compressor |
| 06/24/2004 | WO2004053334A1 Screw compressor witrh axially sliding capacity control valve |
| 06/24/2004 | WO2004053311A1 Hermetic motor and gas booster |
| 06/24/2004 | WO2004053298A1 Volume expander and fluid machine |
| 06/24/2004 | WO2004020826A3 Gerotor mechanism |
| 06/24/2004 | US20040118375 Multiple induction energy-driven engine |
| 06/24/2004 | US20040118147 Multistage compression type rotary compressor and cooling device |
| 06/24/2004 | DE10331877A1 Elektrokompressor Electric compressor |
| 06/24/2004 | DE10258540A1 Operation method of screw compressor in refrigeration system has pressure difference between suction and pressure sides measured and referred to frequency converter to change motor speed |
| 06/24/2004 | DE10258364A1 Electrical drive for claw compressor or piston pump, has centrifugal mass integrated with rotor comprising multiple magnet segments connected to mass |
| 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 | DE10258145A1 Schraubenverdichter Screw compressor |
| 06/23/2004 | EP1431582A1 Scroll compressor |
| 06/23/2004 | EP1431580A1 In-line oil separator |
| 06/23/2004 | CN1507542A Scroll type fluid machine |
| 06/23/2004 | CN1507541A 涡旋压缩机 Scroll Compressor |
| 06/23/2004 | CN1506586A Vortex type compressor |
| 06/23/2004 | CN1506584A Power modulating vortex machine |
| 06/23/2004 | CN1506583A Radial adaptor for compressor |
| 06/23/2004 | CN1506582A 压缩机组件定位法 Compressor assembly location method |
| 06/23/2004 | CN1154818C Air conditioner |
| 06/22/2004 | US6752607 Apparatus for reducing friction loss in scroll compressor |
| 06/22/2004 | US6752606 Rotation preventive device for scroll compressor |
| 06/22/2004 | US6752605 Horizontal two stage rotary compressor with a bearing-driven lubrication structure |
| 06/17/2004 | WO2004051089A1 Screw compressor |
| 06/17/2004 | US20040115063 Scroll compressor |
| 06/17/2004 | US20040112679 System and method for lubricant flow control in a variable speed compressor package |
| 06/17/2004 | US20040112021 In-line oil separator |
| 06/17/2004 | US20040111884 Profiled contour of a screw pump |
| 06/17/2004 | DE10351519A1 Capacitance variable mechanism of scroll compressor for vehicle air conditioner, has actuator which drives rotary board to perform opening/closing of pass route which connects compression chamber and introduction chamber |
| 06/16/2004 | EP1429030A2 Multi-stage rotary compressor |
| 06/16/2004 | EP1428978A1 Rotary fluid machine |
| 06/16/2004 | EP1428977A1 Rotary fluid machine |
| 06/16/2004 | CN1504703A Refrigerant cycling device |
| 06/16/2004 | CN1504646A Screw rod compressor |
| 06/15/2004 | US6749412 Check valve retainer for a scroll compressor |
| 06/15/2004 | US6749405 Identically oriented pairs of alternating intake and exhaust ports;pumping efficiency; medical equipment |
| 06/15/2004 | US6749404 Scroll compressors |
| 06/15/2004 | US6748971 Discharge valve assembly of fluid machinery |
| 06/10/2004 | US20040109782 Compact control mechanism for axial motion control valves in helical screw compressors |
| 06/10/2004 | US20040109779 Compressor with z-plate |
| 06/10/2004 | US20040109772 Electric compressor with inverter |
| 06/10/2004 | US20040109771 Enclosed-configuration electrically powered compressor having electric motor with stator coil thereof cooled by flow of refrigerant prior to compression of the refrigerant |
| 06/10/2004 | US20040107847 Liquid recovery method and system for compression mechanism |
| 06/10/2004 | US20040107720 Refrigerant cycling device |
| 06/10/2004 | US20040107595 Drier |
| 06/09/2004 | EP1426710A1 Refrigerant cycling device |
| 06/09/2004 | EP1379785A4 Scroll type compressor apparatus with adjustable axial gap and bimetallic orbital scroll |
| 06/09/2004 | EP0975873B1 Improved tip seal for scroll-type vacuum pump |
| 06/09/2004 | DE10354718A1 Compressor for motor vehicle has at least one intercooler between two compression stages |
| 06/09/2004 | CN1502823A Assembling mechanism of discharge pipe for hermetic compressor and method thereof |
| 06/09/2004 | CN1502814A Compressor driving device and freezing air conditioner device |
| 06/08/2004 | US6746224 Scroll compressor |
| 06/08/2004 | US6746223 Orbiting rotary compressor |
| 06/08/2004 | US6746216 Scroll compressor with vented oil pump |
| 06/08/2004 | US6746215 Compressor |
| 06/08/2004 | US6745584 Digital scroll condensing unit controller |
| 06/03/2004 | US20040105772 Discharging part structure for compressor |
| 06/03/2004 | US20040105770 Scroll fluid machine |
| 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 |
| 06/02/2004 | EP1424495A2 Vane pump |
| 06/02/2004 | EP1423587A1 A system for the construction of pumps, compressors, and motor engines, formed by a rotary chamber and pistons which are driven in the same direction at varying velocities alternatively opposite to each other, inside a fixed open or closed structure |
| 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 |
| 06/01/2004 | US6742996 Scroll compressor with mechanically actuated capacity control |
| 05/27/2004 | WO2004044432A1 Compressor |
| 05/27/2004 | WO2004044431A2 Vacuum pump |
| 05/27/2004 | WO2004044428A2 Filtration vessel and method for rotary gas compressor system |
| 05/27/2004 | WO2004043194A2 Hair treatment method |
| 05/27/2004 | US20040101428 Scroll type fluid machine |
| 05/27/2004 | US20040101411 Multi-stage screw compressor |
| 05/27/2004 | DE10147372B4 Scrollkompressor mit integriertem Motor und kompaktem Kühlsystem Scroll compressor with integrated motor and compact cooling system |
| 05/26/2004 | EP1421282A1 Fluid displacement pump with backpressure stop |
| 05/26/2004 | EP1384006A4 Vane structure for compressor |
| 05/26/2004 | EP1226337A4 Rotary piston engine/positive displacement apparatus |
| 05/26/2004 | EP1222365A4 A variable volume device and system therefor |
| 05/26/2004 | EP1204809A4 Rotary piston engine |
| 05/26/2004 | CN1500184A Closed compressor |
| 05/26/2004 | CN1500182A Scroll type compressor appts. with adjustable axial gap and bimetallic orbital scroll |
| 05/26/2004 | CN1499082A Enclosed compressor |
| 05/26/2004 | CN1499081A Multistage compression type rotary compressor |
| 05/26/2004 | CN1499080A 螺杆式压缩机 Screw compressors |
| 05/25/2004 | US6739853 Compact control mechanism for axial motion control valves in helical screw compressors |
| 05/25/2004 | US6739851 Coated end wall and method of manufacture |
| 05/25/2004 | US6739841 Oil free screw compressor operating at variable speeds and control method therefor |
| 05/25/2004 | US6739833 Compressor with built-in motor, and mobile structure using the same |