Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
11/2003
11/12/2003CN1127624C Pair of co-operating screw rotors, screw rotor and rotary screw machine
11/12/2003CN1127623C Radial compliance mechanism for co-rotating scroll apparatus
11/11/2003US6644946 Scroll type compressor
11/11/2003US6644931 System for pumping low thermal conductivity gases
11/11/2003US6644045 Oil free screw expander-compressor
11/06/2003US20030206813 Vacuum preventing device of scroll compressor
11/06/2003US20030206812 Vacuum preventing device for scroll compressor
11/06/2003US20030206809 Method for creating an air pressure
11/06/2003US20030206808 Method for creating an air pressure
11/06/2003US20030205213 Compressor assembly
11/05/2003EP1359323A1 Scroll compressor
11/05/2003EP1358408A1 Horizontal scroll compressor
11/05/2003CN2584882Y Vortex air-conditioning compressor with anti-self-rotation and flexible mechanism
11/05/2003CN2584880Y High-strength, full-balance rotor type compressor
11/05/2003CN1454293A 螺杆机 Screw Machine
11/05/2003CN1126871C Compressor assembly with positive displacement pump capable of rotating oppositely
11/04/2003US6641380 Vane pump having a pressure plate and a shaft seal
11/04/2003US6641379 Load bearing ribs for fixed scroll
11/04/2003US6641373 Gas compressor with variably biased vanes
11/04/2003US6641370 Vacuum pump apparatus having improved sealing structure
10/2003
10/30/2003WO2003089793A1 Structure for reducing refrigerant flow loss in compressor
10/30/2003WO2003089790A1 Reversible pivoting vane rotary compressor for a valve-free oxygen concentrator
10/30/2003WO2003036094A3 Vacuum pump
10/30/2003US20030202886 Vacuum preventing device for scroll compressor
10/29/2003EP1357293A2 Bearing for CO2 refrigerant compressor
10/29/2003EP1357292A1 Single-screw compressor
10/29/2003EP1357291A2 Rotating scroll compressor
10/29/2003EP1355758A1 Profiled contour of a screw pump
10/29/2003EP1276993A4 Compressor
10/29/2003EP1101070B1 Vapor-compression evaporative air conditioning system
10/29/2003CN2583399Y Screw refrigeration compressor with accelerating gear
10/29/2003CN1452694A Rotary fluid machinery
10/29/2003CN1451877A Structure for decreasing discharged lubricating oil of compressor
10/29/2003CN1451876A Compressor rotation shaft supporting structure
10/29/2003CN1451875A Structure for decreasing friction loss of compressor
10/29/2003CN1451874A Compressor bearing structure
10/29/2003CN1451873A 旋转压缩机 Rotary compressor
10/29/2003CN1451872A Internal space partition structure of compressor
10/29/2003CN1451871A Sealed compressor baffle supporting device
10/29/2003CN1451870A Compressor baffle structure
10/29/2003CN1451869A Sealed compressor baffle supporting device
10/29/2003CN1451868A Sealed compressor partition plate structure
10/29/2003CN1451867A Sealed compressor partition plate structure
10/29/2003CN1451866A Compressor baffle structure
10/29/2003CN1451865A Sealed compressor baffle supporting device
10/29/2003CN1451864A Double-cylinder rotary compressor eccentrically assembling method
10/28/2003US6638043 Diffuser for high-speed screw compressor
10/28/2003US6638042 Asymmetric porting for multi-rotor screw compressor
10/28/2003US6638040 Dry vacuum pump
10/28/2003US6638030 Oil free screw compressor
10/28/2003US6637550 Displacement type fluid machine
10/28/2003US6637222 System for controlling starting of air conditioner and control method thereof
10/28/2003US6637216 Compressor with internal accumulator for use in split compressor
10/23/2003WO2003087540A1 Scroll type fluid displacement apparatus with fully compliant floating scrolls
10/23/2003US20030198566 Load bearing ribs for fixed scroll
10/22/2003EP1354666A1 Ergonomically friendly random orbital sander construction
10/22/2003EP1354136A1 Refrigeration compressor with magnetic coupling
10/22/2003EP1101024B1 Gerotor compressor and gerotor expander
10/22/2003CN1450268A Suspension type scroll fluid compressor with omnibearing complying structure
10/22/2003CN1450267A Vortex compressor with gas compensation function
10/22/2003CN1125244C Technology for working rotor of roots pump
10/21/2003US6634875 Scroll compressor having an Oldham's ring containing silicon particles
10/21/2003US6634874 Scroll compressor with anti-reverse rotation clutch
10/16/2003WO2003085335A1 Injection of liquid and vapor refrigerant through economizer ports
10/16/2003WO2003085266A1 Housing for a liquid-injected screw-type compressor element
10/16/2003US20030194341 Scroll compressor sealing
10/16/2003US20030194340 Scroll type fluid displacement apparatus with fully compliant floating scrolls
10/16/2003US20030194338 Refrigerating cycle or compressor having foreign matter collector
10/16/2003US20030194334 Scroll compressor with motor control for capacity modulation
10/16/2003US20030194330 Short reverse rotation of compressor at startup
10/15/2003CN1448638A All-extricated contact line single helical-lobe compressor intermeshing pair
10/15/2003CN1124415C Displacement type fluid machine
10/15/2003CN1124414C Positive-displacement type fluid machine
10/09/2003WO2003083309A1 Compressor
10/09/2003WO2003083308A1 Rotary compressor
10/09/2003WO2003083302A1 High-low pressure dome type compressor
10/09/2003US20030190248 Vane supporting apparatus for hermetic compressor
10/09/2003US20030190247 Scroll compressor
10/08/2003CN2578566Y Vacuum pressure air pump with built-in silencer
10/08/2003CN2578565Y Vane rotary plunger pump with forced air cooling
10/08/2003CN2578564Y Duplex two-stage compressing oscillating piston compressor
10/08/2003CN1447081A Vortex machinery with liquid injection
10/08/2003CN1447029A Swirl compressor
10/08/2003CN1123699C Scroll compressor with pressure equalization groove
10/08/2003CN1123698C Conical hub bearing for scroll machine
10/07/2003US6629830 Pressure adjuster valve and gas compressor using the same
10/02/2003WO2003081049A1 Vacuum pump
10/02/2003WO2003081048A1 Eccentric pump and method for operation of said pump
10/02/2003WO2003081043A1 Compressor
10/02/2003WO2002004814A3 Rotary positive displacement machine
10/02/2003US20030185696 Vacuum pump
10/01/2003EP1348870A2 Fuel gas compression system
10/01/2003EP1348077A1 Refrigeration compressor
10/01/2003CN2577007Y External-driving double rotary compressor
10/01/2003CN1446291A Two-shaft vacuum pump
10/01/2003CN1446290A 压缩机 Compressor
10/01/2003CN1445460A 卧式旋转压缩机 Horizontal rotary compressor
10/01/2003CN1445459A 真空泵 Vacuum pump
10/01/2003CN1445458A Dry-type spiral vacuum pump
10/01/2003CN1445457A Dry-type spiral vacuum pump