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

Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
11/2011
11/09/2011	CN1982718B Multistage compression type rotary compressor
11/09/2011	CN102237746A Balance structure of rotary compressor and rotary compressor comprising same
11/09/2011	CN102235359A Hermetic compressor and manufacturing method thereof
11/09/2011	CN102235358A Hermetic compressor and device for assembling the same
11/09/2011	CN102235357A Rotary compressor
11/09/2011	CN102235356A Mechanically and electrically integrated screw rod compressor
11/09/2011	CN102235355A Scroll compressor
11/09/2011	CN102235354A Vortex compressor and refrigeration circulating device
11/09/2011	CN101852199B Composite vacuum pump
11/09/2011	CN101603533B Scroll compressor
11/09/2011	CN101550939B Sound attenuation housing for compressor
11/09/2011	CN101230876B Crankshaft and fluid machine with the crankshaft
11/03/2011	WO2011135817A1 Rotary compressor
11/03/2011	WO2011135816A1 Rotary compressor
11/03/2011	WO2011135779A1 Fluid machine and refrigeration cycle apparatus
11/03/2011	WO2011135747A1 Vane pump
11/03/2011	WO2011135746A1 Vane pump
11/03/2011	WO2011135324A2 Scroll pump
11/03/2011	WO2011134261A1 Screw compressor
11/03/2011	CA2795017A1 Scroll pump
11/02/2011	EP2382382A2 Rotary vane engines with movable rotors,and engine systems comprising same
11/02/2011	CN1854525B Scroll machine
11/02/2011	CN102230470A Semi-underwater Roots blower and implementation scheme thereof
11/02/2011	CN101688534B Single screw compressor and method of assembling the same
11/01/2011	US8047823 Scroll-type fluid machine including pressure-receiving piece
11/01/2011	US8047817 Cleaning method of a rotary piston vacuum pump
11/01/2011	CA2503914C Shared slot vane pump
10/2011
10/27/2011	WO2011049364A3 Screw rotor vacuum pump integrating rotation shafts of motor and rotor
10/27/2011	WO2011049362A3 Screw rotor type vacuum pump incorporating motor
10/27/2011	WO2011024826A3 Rotary vane compressor with hydrofluoroolefin refrigerant gas and high speed tool steel vane.
10/27/2011	WO2011004257A3 Dry screw driver
10/27/2011	US20110262289 Vane air motor
10/26/2011	CN202017630U Outer rotor vortex permanent-magnetic variable frequency screw compressor
10/26/2011	CN102227561A Rotary compressor
10/26/2011	CN101761479B Screw-type compressor with adjustable interior volume specific ratio
10/26/2011	CN101520043B Gas compressor
10/26/2011	CN101392751B Large pumping speed high vacuum dry vacuum pump
10/25/2011	US8043078 Compressor sealing arrangement
10/20/2011	WO2011128362A2 Device for damping sloshing of oil for a screw-type compressor
10/20/2011	DE102010015152A1 Regelventil für einen öleingespritzten Schraubenverdichter Control valve for an oil-injected screw compressor
10/20/2011	DE102010015151A1 Verdichterflansch für Schraubenverdichter Verdichterflansch for screw compressors
10/20/2011	DE102010015147A1 Ölschwappdämpfungseinrichtung für einen Schraubenverdichter Ölschwappdämpfungseinrichtung for a screw compressor
10/20/2011	DE102010014884A1 Vakuumpumpe Vacuum pump
10/19/2011	EP2378124A1 Scroll type compressor
10/19/2011	EP2378123A1 Sealed compressor
10/19/2011	EP2378120A1 Electric compressor having drive circuit integrated thereinto
10/19/2011	EP2378063A2 Vacuum pump
10/19/2011	EP1899608B1 Rotary vacuum pump
10/19/2011	CN102224345A Rotary fluid machine
10/19/2011	CN102220980A Dry vacuum pump apparatus and method of cooling the same
10/19/2011	CN102220979A 压缩机 Compressor
10/19/2011	CN102220978A Hermetic compressor
10/19/2011	CN101614207B Scroll machine having counterweights with changeable cavity
10/18/2011	US8038423 Electric pump with relief valve
10/18/2011	US8037670 Bi-directional converter between pressure and rotational force
10/13/2011	WO2011126032A2 Vacuum pump
10/13/2011	WO2011125652A1 Rotary compressor
10/12/2011	EP2375074A2 Rotor for a vacuum pump
10/12/2011	CN202007780U Double-screw compressor rotor
10/12/2011	CN102216620A Inlet screen and scroll compressor incorporating same
10/12/2011	CN102216619A Screw compressor
10/12/2011	CN102216618A Gas compressor
10/12/2011	CN102216617A Suction duct and scroll compressor incorporating same
10/12/2011	CN102213217A Scroll compressor
10/12/2011	CN101660526B Flexible meshing pair of single screw compressor
10/12/2011	CN101319672B Cyclone compressor
10/11/2011	US8033803 Compressor having improved sealing assembly
10/11/2011	US8033264 Rotary engine
10/10/2011	DE202011051012U1 Luftverdichtungsvorrichtung Air compression device
10/06/2011	WO2011122146A1 Compressor
10/06/2011	WO2010119121A3 Roughing pump method for a positive displacement pump
10/06/2011	US20110243776 Compressor including anti-rotation washer and method of assembly
10/05/2011	EP2372158A1 Frequency- variable compressor and control method thereof
10/05/2011	EP2372083A1 Rotary compressor
10/05/2011	CN202001304U Medium pressure difference roots vacuum pump
10/05/2011	CN202001302U Single-stage medium-pressure single screw air compressor
10/05/2011	CN202001301U High-pressure Roots blower
10/05/2011	CN202001300U High-voltage roots blower
10/05/2011	CN202001299U Rotary air compressor
10/05/2011	CN202001297U Two-angle rotary type compressor
10/05/2011	CN1740571B Motor compressor lubrication
10/05/2011	CN102207090A Rotary compressor
10/05/2011	CN102207089A Cooling synergic gas mixing type scroll compressor for heat pump air conditioner of electric automobile
10/05/2011	CN102207088A Scroll fluid machine
10/05/2011	CN101705941B Screw-rod air compressor gas valve
10/05/2011	CN101603536B Electric vacuum pump for automobile
10/04/2011	US8029255 Lubricating oil circulating device for compressor
09/2011
09/29/2011	WO2011023513A3 Dry screw-type pump with inner sealing system
09/29/2011	US20110236240 Multifunction rotary machine with deformable rhomb
09/29/2011	DE102010012759A1 Rotor für eine Vakuumpumpe A rotor for a vacuum pump
09/28/2011	EP2369182A1 Scroll compressor
09/28/2011	EP2367701A1 Device for pressurising a fluid, to be directly mounted on a power takeoff
09/28/2011	CN201992143U Jet valve and air jet enthalpy-gain type rotary compressor
09/28/2011	CN201991780U 一种油分装置及一种螺杆压缩机 An oil separation plant and A screw compressor
09/28/2011	CN201991772U Rotary compressor
09/28/2011	CN102203425A Frequency- variable compressor and control method thereof
09/28/2011	CN102203424A Scroll compressor
09/28/2011	CN102203423A Scroll-type fluid displacement apparatus with improved cooling system
09/28/2011	CN102203387A Vane for a single-vane vacuum pump
09/28/2011	CN102200128A Crank shaft and air cylinder structure of closed type compressor

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