Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
12/2003
12/17/2003CN1461889A Vibration damper of compressor
12/17/2003CN1131378C Swirl compressor capable of introducing high-pressure fluid into thrust face
12/16/2003US6663369 Fluid compressor
12/16/2003US6663367 Shaft seal structure of vacuum pumps
12/16/2003US6663366 Compressor having cooling passage integrally formed therein
12/16/2003US6663365 Scroll type compressor
12/16/2003US6663364 Scroll type compressor
12/16/2003US6663363 Driving pin structure for scroll compressor
12/16/2003US6663358 Compressors for providing automatic capacity modulation and heat exchanging system including the same
12/16/2003US6662583 Adaptive control for a cooling system
12/16/2003US6662578 Refrigeration system and method for controlling defrost
12/11/2003WO2003102422A1 Two-stage rotary screw fluid compressor
12/11/2003WO2003102421A1 Scroll-type compressor
12/11/2003WO2003102420A1 Gear pump
12/11/2003WO2003102417A1 Four-in pump
12/11/2003US20030228237 Gerotor apparatus for a quasi-isothermal Brayton Cycle engine
12/11/2003US20030228235 Scroll type compressor
12/11/2003US20030228233 Lubrication of a hermetic carbon dioxide compressor
12/11/2003US20030228229 Screw compressor
12/11/2003US20030226360 Heat energy conversion apparatus
12/11/2003DE10225774C1 Vacuum pump, for condensing and aggressive gases, is a dry pump with a membrane pump stage and a spiral scroll pump stage
12/10/2003EP1369590A2 Two-stage rotary type compressor
12/10/2003EP1009590B1 Ergonomically friendly random orbital sander construction
12/10/2003CN1460796A Method for mfg. blade of compressor
12/09/2003US6659749 Hermetic compressor and open compressor
12/09/2003US6659747 Shaft seal structure of vacuum pumps
12/09/2003US6659746 Shaft seal structure of vacuum pumps
12/09/2003US6659745 Scroll compressor having different tip clearances for spiral bodies having different heights
12/09/2003US6659743 Scroll fluid machine having multistage compressing part
12/09/2003US6659738 Composite drive system for compressor
12/09/2003US6659735 Scroll compressor
12/09/2003US6659729 Screw compressor equipment for accommodating low compression ratio and pressure variation and the operation method thereof
12/09/2003US6659227 Oil leak prevention structure for vacuum pump
12/09/2003US6658885 Rotary compressor with muffler discharging into oil sump
12/09/2003US6658866 Scroll expressor
12/04/2003WO2003100258A1 Dual-shaft vacuum pump
12/04/2003US20030223900 Rotary compressor
12/04/2003US20030223899 Scroll compressor
12/04/2003US20030223898 Scroll fluid machine and assembling method thereof
12/04/2003US20030223897 Two-stage rotary screw fluid compressor
12/04/2003US20030223894 Inleakageproof structure for escape opening of a coil-type compressor
12/03/2003EP1366298A1 Water-injected screw-type compressor
12/03/2003EP1366297A1 Water-injected screw compressor
12/03/2003EP1366296A1 Screw vacuum pump comprising additional flow bodies
12/03/2003EP1366294A2 Rotary positive displacement machine
12/03/2003CN2589697Y Compressor load regulating device
12/03/2003CN2589696Y Improved arrangement for compressor back valve
12/03/2003CN2589694Y Single spiral rod air compressor
12/03/2003CN1459572A Vortex compressor
12/03/2003CN1459571A Air compressor
12/03/2003CN1129716C Variable side gap for vortex twisted blade
12/03/2003CN1129715C Hermetic rotary compressor with resonance chamber
12/02/2003US6655938 Screw-type dry vacuum pump having an enlarged casing portion
12/02/2003US6655937 Plastic vane for a vane-cell vacuum pump
12/02/2003US6655172 Scroll compressor with vapor injection
11/2003
11/27/2003WO2003098048A1 Methods and apparatus for unloading a screw compressor
11/27/2003WO2003098047A1 Vacuum pump
11/27/2003US20030219351 Scroll compressor
11/27/2003US20030217730 Rotary piston engine in trochoidal design
11/26/2003EP1365153A1 Gas compressor
11/26/2003EP1365152A1 Scroll compressor using carbon dioxide
11/26/2003CN2588080Y Vacuum releasing valve for sliding-vane compressor
11/26/2003CN2588077Y Driving end cap for compressor rotor-stator parts
11/26/2003CN1459005A Fluid compressor
11/26/2003CN1458423A Vortex compressor
11/26/2003CN1458422A Vortex compressor
11/26/2003CN1128935C Pump simultaneously producing pressure and negative pressure
11/26/2003CN1128934C Package-type scroll compressor
11/26/2003CN1128933C Vortex-type compressor
11/26/2003CN1128931C Gear and fluid machine with gear pair
11/25/2003US6652250 Screw compressor having intermediate shaft bearing
11/25/2003US6652240 Method and control system for controlling multiple throttled inlet rotary screw compressors
11/25/2003US6651458 Internal intermediate pressure 2-stage compression type rotary compressor
11/20/2003WO2003095841A1 Compressed gas production installation and operating method thereof
11/20/2003US20030215345 Gerotor apparatus for a quasi-isothermal brayton cycle engine
11/20/2003US20030215338 Methods and apparatus for unloading a screw compressor
11/20/2003US20030215336 Multi-stage screw compressor unit accommodating high suction pressure and pressure fluctuations and method of operation thereof
11/19/2003EP1362188A1 Rotary piston machine for compressible media
11/19/2003CN1457303A On-vehicle air conditioner
11/19/2003CN1456814A Antivacuum device for vortex compressor
11/19/2003CN1456813A Sealed rotor duplex compressor and manufacturing method thereof
11/19/2003CN1456812A Unsymmetric porthole of multirotor screw compressor
11/19/2003CN1128295C Scroll fluid machinery
11/18/2003US6648619 Vacuum pump
11/18/2003US6648618 Scroll compressor
11/18/2003US6648617 Method and scroll compressor for compressing a compressible medium
11/18/2003US6648607 Scroll compressor with oil reservoir associated with motor protector
11/18/2003US6648604 Short reverse rotation of scroll compressor at startup
11/13/2003WO2003093649A1 Screw compressor-expander machine
11/13/2003WO2003064857A3 Variable capacity compressor and heat exchanging system
11/13/2003US20030210999 Asymmetric porting for multi-rotor screw compressor
11/12/2003EP1361365A2 Vacuum pump and plastic rotor
11/12/2003EP1361364A2 Multi-rotor screw compressor
11/12/2003EP1361363A2 Vacuum preventing device of scroll compressor
11/12/2003CN2585990Y Suction flow distribution plate of compressor
11/12/2003CN1455849A Pump comprising water supply
11/12/2003CN1455126A Bearing for carbon dioxide refrigrant compressor, compressor using said bearing and use thereof
11/12/2003CN1455113A Vacuum-protective device for vortex compressor
11/12/2003CN1127626C Improved lubrication systems for scroll compressors
11/12/2003CN1127625C Rotary sealed compressor and refrigeration cycle device thereof