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)
12/2008
12/03/2008CN101315078A Roots blower
12/03/2008CN101315077A Operation method of oil-cooled type screw compressor
12/03/2008CN100439716C Involute and straight claw type rotor structure for oilless vacuum pump
12/03/2008CN100439715C Electric compressor
12/03/2008CN100439714C Scroll compressor with offset scroll members
12/02/2008US7458789 Scroll compressor
12/02/2008US7458788 Scroll fluid machine including back-pressure chamber with increased pressure receiving area
12/02/2008US7458369 Supercharger lubrication structure
12/02/2008US7458152 Method of manufacturing an orbiting scroll in a scroll fluid machine
11/2008
11/27/2008WO2008144037A1 Capacity modulated scroll compressor system and method
11/27/2008WO2008142994A1 Screw compressor
11/27/2008WO2008142927A1 Screw compressor
11/27/2008WO2008142825A1 Scroll compressor
11/27/2008WO2008142822A1 Expander-integrated compressor and refrigeration cycle device with the same
11/27/2008WO2008142533A2 Rotary blower with corrosion-resistant abradable coating
11/27/2008DE102008024442A1 Vacuum pump used as a vane pump comprises a free-running unit with a fall pin which moves across the rotary axis of a rotor within the unit
11/27/2008DE102008024441A1 Vacuum pump used as a vane-cell pump comprises an interlocking connection having a locking piston which is impinged with an air pressure or oil pressure to move the piston from a resting position into an interacting position
11/27/2008DE102008008860A1 Compressor e.g. for compressing cooling agents, has lubrication hole arranged with movable base plate part and which intermittently communicates to lubrication hole of movable pin
11/27/2008DE102007023949A1 Rotary blower used for air compression, has three sets of meshing teeth on each of two shafts, operating in phased sequence in separate chambers, to drive parallel flows
11/26/2008EP1994278A1 Slide valve with hot gas bypass port
11/26/2008EP1851435B1 Improved water- injected screw compressor element.
11/26/2008CN201155460Y Rotary compressor
11/26/2008CN101311543A Rotor shaft sealing method and structure of oil-free rotary compressor
11/26/2008CN101311541A Rotating ring equalizing abrasion fluid pressure device
11/26/2008CN101311540A Zero clearance positive displacement fluid pressure device
11/26/2008CN101311539A Rolling positive displacement fluid pressure device
11/26/2008CN101311538A Housing for a supercharger assembly
11/26/2008CN101311537A Tapered rotor assemblies for a supercharger
11/26/2008CN101311536A Scroll fluid machine
11/26/2008CN100436973C Oil-separator in pipeline
11/26/2008CN100436881C Compressor bearing and compressor part
11/26/2008CN100436829C Rotary compressor
11/26/2008CN100436828C Rotary type displacement compressor
11/26/2008CN100436827C Energy indicator used in screw bolt refrigerant compressor
11/26/2008CN100436826C Screw bolt compressor suitable for parallel system and having low loading start up function
11/26/2008CN100436825C Shaft coupling device used for internal transmission of single machine two-stage screw bolt refrigerant compressor
11/26/2008CN100436824C Screw compressor witrh axially sliding capacity control
11/20/2008WO2008140071A1 Single screw compressor
11/20/2008WO2008139680A1 Fluid machine and refrigeration cycle device with the same
11/20/2008WO2008139667A1 Refrigeration cycle device and fluid machine used therefor
11/20/2008WO2008138226A1 Screw energy converter
11/19/2008EP1992821A1 Sliding component of compressor, sliding component base, scroll component, and compressor
11/19/2008EP1992820A1 Freezing device
11/19/2008EP1991788A1 Reservoir for a replacement fluid for a device and a device, together with an oil separator fitted with such a reservoir
11/19/2008CN201152258Y Screw rod air compressor
11/19/2008CN101307962A Refrigerant system possessing multi- speed cyclone compressor and economizer loop
11/19/2008CN101307765A Compressor
11/19/2008CN101307764A Compressor
11/19/2008CN101307763A Compressor
11/19/2008CN101307761A Compressor
11/19/2008CN101307760A Compressor
11/19/2008CN100434717C Oil supply structure for vortex compressor eccentric sleeve
11/19/2008CN100434715C Lubricating structure for closed compressor baffle plate
11/19/2008CN100434712C Antileaking structure for refrigerant gas for closed-compressor
11/19/2008CN100434711C Screw compressor
11/19/2008CN100434710C Turbine compressor
11/19/2008CN100434709C Temperature sensor arranging structure for vortex compressor
11/19/2008CN100434708C Compression device of roller compressor
11/19/2008CN100434705C Compression unit of orbiting vane compressor
11/19/2008CN100434704C Hermetic type scroll compressor and refrigerating and air-conditioning apparatus
11/19/2008CN100434703C Vortex compressor
11/19/2008CN100434702C Scroll compressor
11/19/2008CN100434656C Rotary type expansion machine
11/18/2008US7452194 Screw pump
11/18/2008CA2440968C Horizontal two stage rotary compressor
11/18/2008CA2402681C Hybrid compressor
11/13/2008WO2008137250A1 Portable generator and air compressor mounting arrangement
11/13/2008WO2008137244A2 Portable air compressor/generator control method and system
11/13/2008WO2008136497A1 Compressor and refrigeration device using the same
11/13/2008US20080279709 Driven Vane Compressor
11/13/2008US20080279708 Screw Compressor with Oil Feed System
11/13/2008DE102008016865A1 Kompressor-Einlasskanal Compressor inlet channel
11/13/2008DE102005001160B4 Spiralkompressor Scroll compressor
11/13/2008CA2683010A1 Portable generator and air compressor mounting arrangement
11/12/2008EP1990543A1 Dry vacuum pump
11/12/2008EP1174621B1 Screw compressor
11/12/2008CN201148975Y Electric compressor and air suction passage way thereof
11/12/2008CN201148973Y Rear end air charging and discharging rotary vane compressor
11/12/2008CN201148972Y Compact type rotary vane compressor
11/12/2008CN201148971Y Oil separator of rotary vane compressor
11/12/2008CN101305188A Scroll compressor with wrap walls provided with an abradable coating and a load-bearing surface at radially outer locations
11/12/2008CN101303018A Vortex compressor
11/12/2008CN101303016A Rotor spindle sealing structure of oil-free rotary compressor
11/12/2008CN101303015A Compressor and cylinder fixing method
11/12/2008CN100432585C An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
11/12/2008CN100432584C An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
11/12/2008CN100432442C Negative pressure regulating structure of vortex compressor
11/12/2008CN100432441C Variable capacity rotation compressor
11/12/2008CN100432439C Hand-held vacuum pump and automated urinary drainage system using that vacuum pump
11/12/2008CN100432438C Rotary compressor
11/12/2008CN100432437C Gear type compressor
11/12/2008CN100432436C Refrigeration machine
11/12/2008CN100432435C Compressor
11/12/2008CN100432434C Noval tooth-type screw rod
11/06/2008US20080274001 Rotary Expander
11/06/2008US20080273998 Fluid machine
11/05/2008EP1988275A2 Hybrid worm gas turbine engine
11/05/2008EP1875076B1 Volumetric rotary machine with rotors having asymmetric profiles
11/05/2008CN201144815Y Screw type variable-frequency air compressor
11/05/2008CN201144809Y Antifriction gap structure of compressor intermediate plate
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