F04C 18 - Rotary-piston pumps specially adapted for elastic fluids

Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
05/2011
05/18/2011	CN201836051U Air replenishing and cooling high negative pressure Roots vacuum pump
05/18/2011	CN201836050U Roots blower with pressure-balancing counter-current holes
05/18/2011	CN102066760A Screw compression apparatus
05/18/2011	CN102066759A Scroll compressor
05/18/2011	CN102062098A Plane cross slip ring for scroll compressor
05/18/2011	CN102062097A Autorotation preventing mechanism for scroll compressor
05/18/2011	CN102062094A Rolling rotor refrigeration compressor with function of preventing liquid impact
05/18/2011	CN102062093A Rolling rotor refrigeration compressor provided with energy adjustment system
05/18/2011	CN102062092A Single-stage medium-pressure single-screw air compressor
05/18/2011	CN102062091A Integrated brushless permanent magnet Hall electric vortex compressor assembly for vehicle air conditioner
05/18/2011	CN102062090A Scroll compressor
05/18/2011	CN101694213B Embedded oil-gas centrifugal separator and integrated three-stage oil-gas separation screw compressor
05/18/2011	CN101529096B Compressor
05/17/2011	USRE42371 Scroll machine
05/17/2011	US7942642 Method and apparatus for highly efficient compact vapor compression cooling
05/12/2011	WO2011004342A3 Rotors for a rotary screw machine
05/12/2011	DE202010013074U1 Rotierender Flügelzellen-Kompressor A rotary vane compressor
05/12/2011	DE102010009083A1 Vacuum pump e.g. liquid-sealed vacuum pump, for use as rotary vane pump, has two pumping stages respectively arranged at vacuum side and pressure side, where one of pumping stages is implemented as screw pumping stage with screw pump unit
05/11/2011	EP2318716A1 Variable capacity type rotary compressor, cooling apparatus having the same, and method for driving the same
05/11/2011	EP2318715A1 Generation and use of high pressure air
05/11/2011	EP1220736B1 Ergonomically friendly random orbital sander construction
05/11/2011	CN201827083U 空气压缩机 Air Compressor
05/11/2011	CN201827080U Blade of rolling rotor compressor
05/11/2011	CN201827075U Rotary sliding-vane type air compressor
05/11/2011	CN201827074U Twin-screw air compressor
05/11/2011	CN1782437B Sucking pipe connection structure of rotary compressor
05/11/2011	CN102052322A Twin-screw compressor rotor profile
05/11/2011	CN102052320A Method for calibrating pneumatic actuators and calibrated actuator obtainable with this method
05/11/2011	CN102052317A Rotary compressor for HC (hydrocarbon) coolant and application thereof
05/11/2011	CN102052316A Outer rotor vortex permanent magnet frequency conversion screw compressor system
05/11/2011	CN102052315A Screw compressor
05/11/2011	CN102052314A Air pump for automobile
05/11/2011	CN102052313A Symmetrical vortex type compressor host
05/11/2011	CN102052312A Scroll compressor
05/11/2011	CN102052311A Scroll compressor
05/11/2011	CN102052310A Scroll compressor
05/11/2011	CN102052309A Four-stage scroll compressor
05/11/2011	CN102052308A Five-stage scroll compressor
05/11/2011	CN102052307A Eight-stage scroll compressor
05/11/2011	CN102052306A Nine-stage scroll compressor
05/11/2011	CN102052305A Seven-stage scroll compressor
05/11/2011	CN102052304A Six-stage scroll compressor
05/11/2011	CN102052303A Ten-stage scroll compressor
05/11/2011	CN102052302A Eleven-stage scroll compressor
05/11/2011	CN102052301A N-stage scroll compressor
05/11/2011	CN101603538B Spiral-flow auxiliary air intake device and compression pump thereof
05/11/2011	CN101498302B Mode changing apparatus for a scroll compressor
05/11/2011	CN101205913B Power variable device of scroll compressor
05/11/2011	CN101165351B Rotary piston type compressor pump assembly
05/05/2011	WO2011053173A2 Rotary working machine provided with an assembly of working chambers with periodically variable volume, in particular a compressor
05/05/2011	WO2011052166A1 Scroll fluid machine
05/05/2011	WO2010130238A3 Vacuum pump
05/05/2011	WO2010115695A3 Combined oil delivery and vacuum pump
05/05/2011	US20110100017 Open Cycle Gas Turbine System Having An Enhanced Combustion Efficiency
05/05/2011	DE102010047724A1 Schraubenkompressorschmiersystem Screw compressor lubrication system
05/05/2011	CA2775384A1 Scroll-type fluid machiner
05/04/2011	EP2317147A1 Compressor and air-conditioner having the same
05/04/2011	EP2317146A1 Oil recovery member, and motor mechanism and compressor using the same
05/04/2011	CN201818499U Improved structure of coolant recovery machine
05/04/2011	CN201818498U Scroll compressor
05/04/2011	CN1989184B Composition for sliding member, sliding member, and fluid machine
05/04/2011	CN1807896B Multi-stage compression type rotary compressor
05/04/2011	CN102046981A Enclosed compressor and refrigeration cycle device
05/04/2011	CN102046980A Screw compressor with asymmetric ports
05/04/2011	CN102046979A Support member for optimizing dynamic load distribution and attenuating vibration
05/04/2011	CN102042229A Scroll wrap line for scroll compressor
05/04/2011	CN102042227A Double-rotor two-stage enthalpy-increase compressor, air conditioner and heat pump water heater
05/04/2011	CN102042226A Screw compressor having slide valve with flexible volume ratio
05/04/2011	CN102042225A Water-lubricating single screw compressor
05/04/2011	CN102042224A Scroll compressor
05/04/2011	CN102042223A Method and apparatus for establishing clearances in scroll compressor
05/04/2011	CN102042222A Scroll compressor
05/04/2011	CN102042221A Scroll compressor
05/04/2011	CN101476561B Cyclone compressor
05/04/2011	CN101280779B Screw rod of double-screw rod compressor
05/04/2011	CN101052808B Capacity varying type rotary compressor
04/2011
04/28/2011	WO2011049364A2 Screw rotor vacuum pump integrating rotation shafts of motor and rotor
04/28/2011	WO2011049363A2 Screw rotor type vacuum pump
04/28/2011	WO2011049362A2 Screw rotor type vacuum pump incorporating motor
04/28/2011	WO2011028353A3 Electric machine
04/28/2011	US20110097232 Single screw compressor and a method for processing a screw rotor
04/28/2011	DE102010047513A1 Verfahren und Vorrichtung zum Herstellen von Abständen in einem Spiralverdichter Method and apparatus for producing intervals in a scroll type compressor
04/27/2011	EP2314874A1 Non-lubricated screw compressor
04/27/2011	EP2313657A1 Cooling for a screw pump
04/27/2011	CN201810553U Fluid-reversion preventing mechanism, scroll compressor and air conditioner
04/27/2011	CN1896519B Compound compressors
04/27/2011	CN102037245A Methods and systems for injecting liquid into a screw compressor for noise suppression
04/27/2011	CN102037218A A vane with tilting tips, and a rotary displacement pump using this vane
04/27/2011	CN102032701A Refrigeration circulating system and application thereof
04/27/2011	CN102032185A Rotary air compressor
04/27/2011	CN102032184A Flow-variable horizontal vortex refrigeration compressor
04/27/2011	CN102032183A Double-stage scroll refrigerating compressor supplied with oil by using pressure difference
04/27/2011	CN102032182A Double-stage horizontal totally-enclosed scroll refrigeration compressor
04/27/2011	CN102032181A Scroll compressor with axial displacement regulation
04/27/2011	CN102032180A Scroll refrigerating compressor with radial energy regulation
04/27/2011	CN102032179A Vertical totally-enclosed double-stage vortex type refrigeration compressor
04/27/2011	CN102032178A Scroll-type fluid machine
04/27/2011	CN102032177A Fully-closed horizontal oil-injection scroll compressor
04/27/2011	CN101392748B Horizontal type dry vacuum pump
04/27/2011	CN101375063B Vacuum pump unit

1 ... 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 ... 195