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

Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
11/2009
11/25/2009	CN101586562A Rotary compressor with enthalpy-increasing device
11/25/2009	CN100562666C A system and a method for capacity control in a screw compressor
11/25/2009	CN100562665C Pawl-type dry vacuum pump rotor
11/24/2009	US7621255 Toroidal engine method and apparatus
11/24/2009	US7621254 Internal combustion engine with toroidal cylinders
11/19/2009	WO2009139270A1 Rotary compressor
11/19/2009	US20090285710 Compressor Unloading Valve
11/19/2009	US20090285708 Scroll type compressor
11/19/2009	DE102009017203A1 Servobetätigte Kompressorbetriebsvorrichtung Servo-operated compressor operating device
11/18/2009	EP2119916A1 Rotary compressor
11/18/2009	EP2119915A2 Two-stage screw compressor and refrigerating device
11/18/2009	EP2118491A1 Pump, particularly vane pump
11/18/2009	CN201347863Y Rotary type compressor pump body aligning device
11/18/2009	CN201347861Y Integrated double cylinder of rotary type compressor
11/18/2009	CN201347860Y Rotor clamp of screw compressor
11/18/2009	CN101584100A Insulator for motor, stator, motor and compressor
11/18/2009	CN101583777A Expander-integrated compressor
11/18/2009	CN101581306A Tooth shape of screw
11/18/2009	CN101581304A Two-stage screw compressor and refrigerating device
11/18/2009	CN101581303A Screw type refrigerating compressor for ship
11/18/2009	CN101581302A Hydrojet cooling screw type refrigerating compressor set for ship
11/18/2009	CN100560979C Anti-leakage device of vacuum part of closed scroll compressor
11/18/2009	CN100560978C Rotary shaft support structure of scroll compressor
11/17/2009	US7618246 Eccentric screw pump having conical sealing surfaces
11/17/2009	US7618245 Fluid machine
11/17/2009	US7618242 Hermetic sealed compressor
11/12/2009	WO2009090079A3 A displacement pump with a barrier against the fluid leakage
11/12/2009	US20090280018 Compressor
11/12/2009	US20090277216 Rotary compressor
11/12/2009	DE102009017037A1 Compressor Compressor
11/12/2009	DE102007043674B4 Spiralverdichter mit Doppelspirale Scroll compressor with double spiral
11/11/2009	EP2116726A1 Scroll compressor and air conditioner
11/11/2009	EP2115302A1 Compressor and oil blocking device therefor
11/11/2009	CN201344128Y Vane of rolling rotor compressor
11/11/2009	CN201344127Y An energy saving and consumption reducing screw rod air compressor
11/11/2009	CN201344126Y Oil-less dry type screw vacuum pump
11/11/2009	CN201344125Y Roots vacuum pump
11/11/2009	CN101576083A Cooling cylinder compression cycle of rotor-type compressor
11/11/2009	CN101576082A Screw compressor
11/11/2009	CN101576081A Volume type compressor
11/11/2009	CN101576080A Single star wheel single screw air compressor
11/10/2009	US7614860 Scroll compressor
11/10/2009	US7614859 Scroll compressor with certain pressure ratio between discharge pressure and suction pressure and with certain ratio of diameter of orbiting mirror plate and outer diameter of the annular seal
11/05/2009	DE102008021971A1 Vakuumpumpe sowie Verfahren zum Reinigen von Vakuumpumpen Vacuum pump as well as method for purifying of vacuum pumps
11/04/2009	EP2113987A1 Insulator for motor, stator, motor and compressor
11/04/2009	EP2113667A1 Single-shaft eccentric screw pump
11/04/2009	EP2113053A1 Compressor and oil separating device therefor
11/03/2009	US7611345 Structure for preventing axial leakage in scroll compressor
11/03/2009	US7611344 Sealing tabs on orbiting scroll
11/03/2009	US7611340 Composite dry vacuum pump having roots and screw rotor
10/2009
10/29/2009	WO2009132258A1 Support member for optimizing dynamic load distribution and attenuating vibration
10/29/2009	WO2009131084A1 Rotary compressor and method of producing vanes for rotary compressor
10/29/2009	WO2009130878A1 Scroll compressor
10/29/2009	WO2009129588A1 System for construction of pumps, compressors and rotary engine composed of two rotors with one, two or more displacer's each, that move themselves in the same direction at speeds that are varying and alternativly opposite each other
10/29/2009	US20090269231 Method of Pumping Gas
10/28/2009	EP2111508A1 Powder metal scroll hub joint
10/28/2009	CN101566157A Vacuum pump supporting device
10/28/2009	CN101566155A Air filter system of movable screw compressor
10/28/2009	CN101566152A Screw vacuum pump
10/28/2009	CN100554696C Roots blower
10/28/2009	CN100554695C Rotary compressor
10/28/2009	CN100554694C Screw compressor
10/28/2009	CN100554693C Equal wall thickness high compression ratio cyclone compressor
10/28/2009	CN100554692C Wall thickness changing high compression ratio cyclone compressor
10/28/2009	CN100554691C Scroll-type compressor and control method thereof
10/27/2009	US7607906 Gear pump arrangement with erosion resistant insert
10/27/2009	US7607904 Rotary compressor with low pressure space surrounding outer peripheral face of compression mechanism and discharge passage passing through housing
10/27/2009	US7607899 Compressor with capacity control
10/22/2009	WO2009127281A1 Vane of a vane pump or a vane compressor
10/22/2009	WO2009100207A3 Compressor having wire retainer
10/21/2009	EP2110556A1 Compressor
10/21/2009	CN201330708Y Cooling structure for front/rear covers and end cover of Roots vacuum pump
10/21/2009	CN201330705Y Mechanical seal structure of Roots vacuum pump
10/21/2009	CN201330704Y Principal machine of single-screw air compressor
10/21/2009	CN201330703Y Anti-corrosion Roots vacuum pump
10/21/2009	CN201330702Y Cyclone compressor for preventing liquid impact
10/21/2009	CN101560977A Capacity control rotary compressor
10/21/2009	CN101560976A Energy-saving and environment-friendly vacuum device applied to petrochemical engineering and mixed arene separating system
10/21/2009	CN100552227C Oil supply unit for scroll compressor
10/21/2009	CN100552224C Rotary compressor
10/20/2009	US7604466 Discharge muffler system for a rotary compressor
10/20/2009	US7604465 Fluid machine and scroll compressor having a crankshaft with a large diameter shaft section
10/15/2009	WO2009125782A1 Rotary compressor
10/15/2009	WO2009125737A1 Scroll type fluid machine
10/15/2009	WO2009125608A1 Scroll fluid machine
10/15/2009	WO2009124845A2 Fluid-sealed or fluid-lubricated vacuum pump
10/15/2009	WO2009091996A3 Scroll machine
10/15/2009	US20090257902 Compressor device
10/15/2009	US20090257898 Rotary pump or motor with orbital piston aspiration
10/15/2009	DE10300683B4 Hybridverdichter Hybrid compressor
10/15/2009	DE102009012368A1 Lader mit Auslassstegen zur Abstützung von Rotordichtleisten Loader with Auslassstegen for supporting rotor sealing strips
10/15/2009	DE102008017955A1 Fluidgedichtete oder fluidgeschmierte Vakuum-Pumpe Sealed fluid or fluid-lubricated vacuum pump
10/14/2009	EP2108842A1 Scroll compressor
10/14/2009	EP2108841A2 Shaft coupling for scroll compressor
10/14/2009	CN201326544Y Rotor type compressor
10/14/2009	CN201326543Y Vane type rotary compressor
10/14/2009	CN101558218A System for sealing the piston of rotary piston machines
10/14/2009	CN101555879A Pump
10/14/2009	CN100549426C Oil-injected compressor with a temperature switch
10/14/2009	CN100549425C Dual-shaft vacuum pump

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