Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps › F04C 18 - Rotary-piston pumps specially adapted for elastic fluids
Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
08/2003
08/14/2003CA2475229A1 Gerotor apparatus for a quasi-isothermal brayton cycle engine
08/13/2003EP1335133A2 Two-stage compressors
08/13/2003EP1334265A1 Fluid power transfer device
08/13/2003CN2566015Y Low noise Roots blower
08/13/2003CN1435572A 多气缸压缩机 Multi-cylinder compressor
08/13/2003CN1117930C Single-source gas actuation for screw compressor slide valve assembly
08/13/2003CN1117929C Rotary compressor
08/12/2003US6604924 Positive-displacement pump
08/12/2003US6604923 End seal features for scroll compressors
08/12/2003US6604503 Rotary machine
08/07/2003WO2003064859A1 Closed compressor
08/07/2003WO2003064857A2 Variable capacity compressor and heat exchanging system
08/07/2003US20030147764 Screw vacuum pump with a coolant circuit
08/07/2003US20030147763 Air supply apparatus
08/07/2003US20030147762 Orbiting rotary compressor
08/06/2003EP1333179A2 Scroll compressor
08/06/2003EP1332289A1 Rotor shaft sealing
08/06/2003CN1434216A Scrool compressor with vapour injection
08/06/2003CN1434214A Rotor outline for screw bolt type compressor
08/06/2003CN1434213A Powder metal scrolls
08/06/2003CN1433861A Method for producing sintered metal and rotary type compressor flange produced by said method
08/06/2003CN1117216C Vacuum pump rotor and method of manufacturing the same, and a kind of vacuum pump
08/06/2003CN1117209C Scroll-type fluid displacement devicehaving flow diverter, multiple tip seal and semi-radical compliant mechanism
08/05/2003US6601397 Digital scroll condensing unit controller
07/2003
07/31/2003WO2003062641A1 Rotor profile for screw compressors
07/31/2003WO2003061852A1 Method to rough size coated components for easy assembly
07/31/2003US20030143935 Ergonomically friendly orbital sander construction
07/30/2003EP1331397A2 Scroll compressor
07/30/2003EP1331396A2 Scroll compressor with vapor injection
07/30/2003EP1331395A2 Powder metal scrolls
07/30/2003EP1331115A2 Vehicle air conditioner using a hybrid compressor
07/30/2003CN1116521C Rotary compressor assembly with improved shock-absorbing property
07/30/2003CN1116520C Rotary copressor and making method thereof
07/30/2003CN1116519C Oil-cooled type compressor
07/30/2003CN1116499C Vortex component of turbomachine
07/29/2003US6599110 Scroll-type compressor with lubricant provision
07/29/2003US6599104 Motor-driven compressors
07/29/2003US6599101 Gas compressor
07/29/2003US6599100 Closed type motor-operated compressor
07/29/2003US6599097 Dry vacuum pump with improved gas discharging speed and pump cooling
07/29/2003US6599094 Screw compressor system and operating method thereof
07/29/2003US6599093 Compressor having speed and intake regulation valve control
07/24/2003WO2003060327A1 Compressor having cylindrical shape vane
07/24/2003WO2003060326A1 Compressor and vane therefor
07/24/2003WO2003060324A1 Compressor having vibration reducing structure
07/24/2003US20030138341 Kneading metal powder, pressure molding, sintering, subzero treating powder for predetermined time and tempering resulting powder under compression residual stress; rotary compressor flange
07/24/2003US20030138340 Cylinder assembly of compressor
07/24/2003US20030138339 Powder metal scrolls
07/24/2003US20030136145 Scroll compressor with vapor injection
07/24/2003US20030136138 Vehicle air conditioner using a hybrid compressor
07/23/2003EP1164249A4 Spherical positive-displacement rotary machine
07/23/2003CN2561965Y Casing and basement structure of multi-stage compressor or vacuum pump
07/23/2003CN1431403A Enclosed rotary compressor and freezing air conditioning unit
07/23/2003CN1431402A Enclosed compressor and freezer using such compressor
07/23/2003CN1431401A Enclosed rotary compressor
07/23/2003CN1431399A Vacuum preventer for vortex compressor
07/23/2003CN1115485C Hermetic compressor
07/23/2003CN1115483C Scroll compressor
07/22/2003US6595763 Screw compressor with reduced leak path
07/22/2003US6595761 Screw compressor
07/22/2003US6595024 Expressor capacity control
07/17/2003US20030133817 Multi-stage vacuum pump
07/17/2003US20030133809 Hybrid compressor apparatus
07/16/2003EP1327779A1 Rotary vane compressor with discharge valve
07/16/2003EP1327778A2 Vane pump
07/16/2003EP1327078A1 Multi-stage helical screw rotor
07/16/2003CN1430705A Compressor
07/16/2003CN1429991A Compressor with sound-proof casing
07/16/2003CN1114807C Combination valve for screw compressors
07/16/2003CN1114763C Refrigeration screw compressor and refrigerating system with the compressor and operation method
07/16/2003CN1114761C Scroll type compessor
07/15/2003US6592347 Rotary compressor
07/15/2003US6592346 Compressor discharge valve
07/15/2003US6592344 Press-on insulator dish
07/15/2003US6592338 Vapor-compression distiller includes a rotary heat exchanger
07/10/2003WO2003056184A1 Vacuum pump
07/10/2003WO2003056183A1 Compressor and overload protecting apparatus
07/10/2003WO2003056181A1 Vane of compressor
07/10/2003WO2003056138A1 Improvement in and relating to prime movers
07/10/2003WO2003055551A1 Radial compressor for respirators
07/10/2003US20030129934 Ergonomically friendly orbital sander construction
07/10/2003US20030129066 Vacuum preventing device for scroll compressor
07/10/2003US20030126885 Multistage compressor
07/09/2003CN1114044C 螺旋压缩机 Screw compressors
07/09/2003CN1114043C Variable speed vortex compressor
07/09/2003CN1114042C Vortex compressor
07/08/2003US6589035 Scroll compressor having a valved back-pressure chamber and a bypass for over-compression
07/08/2003US6589033 Unitary sliding vane compressor-expander and electrical generation system
07/08/2003US6589026 Fluid machinery having a helical mechanism with through holes for ventilation
07/08/2003CA2306880C Hermetic scroll compressor
07/08/2003CA2299843C Scroll type compressor
07/03/2003WO2003054391A1 Suction mechanism of rotary compressor
07/03/2003US20030124014 Gas compressor
07/03/2003US20030124011 Dry vacuum pump
07/03/2003US20030123990 Method for operation control of vacuum pump and control system for vacuum pump
07/02/2003EP1322864A1 Plastic vane for a vane-cell vacuum pump
07/02/2003EP1076760B1 Rotating piston machine with three-blade rotors
07/02/2003CN2558792Y Full-free contact line single-screw compressor meshing pair
07/02/2003CN2558791Y Axial through sliding-vane air compressor
07/02/2003CN1427461A Transfer device for semiconductor device in processor
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