| Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462) |
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| 03/21/2007 | CN1932290A 可变容量旋转式压缩机 The variable capacity rotary compressor |
| 03/21/2007 | CN1306170C Apparatus for preventing overheat of scroll compressor |
| 03/21/2007 | CN1306169C Screw compressor and its running method |
| 03/21/2007 | CN1306168C Mixed compressor |
| 03/21/2007 | CN1306167C Method for aligning scroll compressor structural components |
| 03/20/2007 | US7192264 Hyrdraulic motor |
| 03/20/2007 | US7192262 Twin-shaft vacuum pump and method of forming same |
| 03/20/2007 | US7192261 Scroll fluid machine having permanent magnets mounted on respective the stationary and orbiting end plates for preventing axial motion of the orbiting scroll |
| 03/15/2007 | WO2007029481A1 Vane compressor |
| 03/15/2007 | WO2005081890A3 Archimedean conveyors and combustion engines |
| 03/15/2007 | US20070059193 Scroll compressor with vapor injection |
| 03/15/2007 | US20070059192 Flanged sleeve guide |
| 03/15/2007 | US20070059187 Oil and vacuum pumps group for a motor vehicle engine |
| 03/15/2007 | DE102005042451A1 Vacuum pumping device for use as oil-lubricated rotary vane pump, has drive and rotary units arranged such that transient area has sealing units separating conveying area from drive area, where one of sealing units is ferrous fluid seal |
| 03/14/2007 | EP1762727A2 Scroll machine with sleeve guide |
| 03/14/2007 | EP1761707A1 Scroll pump with load bearing synchronization device |
| 03/14/2007 | CN2878735Y Rotor type compressor |
| 03/14/2007 | CN2878734Y Forced self-circulation air cooling oil tank |
| 03/14/2007 | CN2878733Y Enclosed compressor for external gas damping cooling device for engine body |
| 03/14/2007 | CN2878732Y Soft connection sealing type Roots blower |
| 03/14/2007 | CN2878731Y Screw bolt compressor rotor |
| 03/14/2007 | CN1930396A Gas vane pump, and method of operating the pump |
| 03/14/2007 | CN1930395A Modular volumetric compressor |
| 03/14/2007 | CN1930373A Fluid machine |
| 03/14/2007 | CN1304757C Dentiform screw with short seal line |
| 03/14/2007 | CN1304756C Vortex machine with discharge valve |
| 03/13/2007 | US7189067 Scroll compressor having vacuum preventing structure |
| 03/13/2007 | US7189066 Light gas vacuum pumping system |
| 03/13/2007 | US7188621 Portable ventilator system |
| 03/13/2007 | US7188602 Concentric internal combustion rotary engine |
| 03/13/2007 | CA2431715C Lubrication of a hermetic carbon dioxide compressor |
| 03/13/2007 | CA2417794C Compressor |
| 03/08/2007 | WO2007027125A1 Rotary machine |
| 03/08/2007 | WO2007026047A1 Cooling system of an aggregate |
| 03/08/2007 | US20070053782 Rotary type expander and fluid machinery |
| 03/07/2007 | EP1760318A2 Dual volume-ratio scroll machine |
| 03/07/2007 | EP1438509B1 Screw compressor assembly and method |
| 03/07/2007 | CN1924361A Whirl type compressor used displacement variable control device |
| 03/07/2007 | CN1924360A Multi-line whirl disc of whirl compressor and discharge device thereof |
| 03/07/2007 | CN1924359A Capacity controlled compressor with one and two cylinders |
| 03/07/2007 | CN1924358A Eddy liquid machinery |
| 03/07/2007 | CN1303328C Volume fluid machine and piston producing method thereof |
| 03/06/2007 | US7186101 Gerotor apparatus for a quasi-isothermal Brayton cycle Engine |
| 03/06/2007 | US7186100 Variable capacity rotary compressor |
| 03/06/2007 | US7186098 Eccentric pump and method for operation of said pump |
| 03/06/2007 | US7186095 Compressor mounting bracket and method of making |
| 03/06/2007 | US7185625 Rotary piston power system |
| 03/01/2007 | WO2007023904A1 Hermetic compressor and refrigeration cycle device |
| 03/01/2007 | WO2007022798A1 Pump housing |
| 03/01/2007 | WO2007022605A1 Improved low-pressure screw compressor |
| 03/01/2007 | US20070048163 Tip seal in a scroll fluid machine |
| 03/01/2007 | DE102005056270B3 Rotary pump for pumping fluid has blade body and tip releasably connected to each other and groove in one of them in which spring engages |
| 03/01/2007 | DE102005040921A1 Dry running screw type compressor has a venting valve controlled by an actuator operated by the delivery pressure |
| 03/01/2007 | DE102004038924B4 Seitenkanal-Drehschieberpumpe Side channel rotary vane pump |
| 03/01/2007 | CA2618729A1 Pump housing |
| 02/28/2007 | EP1757813A1 Tip seal in a scroll fluid machine |
| 02/28/2007 | EP1757812A1 Rotating fluid machine |
| 02/28/2007 | EP1756487A2 Compressor |
| 02/28/2007 | CN2874071Y Compressor with elliptical cylinder |
| 02/28/2007 | CN2874070Y Double blade compressor with direct flow air suction valve |
| 02/28/2007 | CN2874069Y Full closed rolling rotor type compressor of air conditioner with double bearing structures |
| 02/28/2007 | CN1920305A Compressor |
| 02/28/2007 | CN1302206C Device for preventing vaccum in vortex compressor |
| 02/27/2007 | US7182586 Scroll compressor |
| 02/27/2007 | US7182106 Fluid dispensation method |
| 02/27/2007 | US7182061 Rotary internal combustion engine |
| 02/27/2007 | US7181919 System utilizing waste heat of internal combustion engine |
| 02/22/2007 | WO2007021371A2 Scroll compressor discharge port |
| 02/22/2007 | WO2006071787A3 Improved rotor position control fore rotary machines |
| 02/22/2007 | US20070041861 Screw rotor and vacuum pump |
| 02/22/2007 | US20070041860 Rotary vane air pump |
| 02/22/2007 | US20070041852 Rotary compressor |
| 02/21/2007 | EP1754889A1 Air pump |
| 02/21/2007 | EP1753959A2 Scroll compressor with wrap walls provided with an abradable coating and a load-bearing surface at radially outer locations |
| 02/21/2007 | EP1486677B1 Rotary compressor |
| 02/21/2007 | CN2871925Y Vortex compressor of automobile |
| 02/21/2007 | CN2871923Y Anti-explosive and leadkage-proofing Roots blower |
| 02/21/2007 | CN1916423A Impeller for compressor |
| 02/21/2007 | CN1916422A Fixed construction between engine body and engine shell of compressor, and fixing method |
| 02/21/2007 | CN1916421A Baffle structure of compressor cylinder, and control mathod |
| 02/21/2007 | CN1916420A Fixed construction between engine body and engine shell of compressor |
| 02/21/2007 | CN1916419A Compressor |
| 02/21/2007 | CN1916418A Fixed construction between engine body and engine shell |
| 02/21/2007 | CN1916417A Revolve type compressor |
| 02/21/2007 | CN1916416A Fluid control device for rotor in twin shaft |
| 02/20/2007 | US7179070 Variable capacity pump/motor |
| 02/20/2007 | US7179068 Electric compressor |
| 02/20/2007 | US7179067 Scroll compressor with wrap walls provided with an abradable coating and a load-bearing surface at radially outer locations |
| 02/20/2007 | US7178352 Compressor |
| 02/15/2007 | WO2007018527A1 Positive displacement rotary device and method of use |
| 02/15/2007 | US20070036668 Scroll compressor discharge port improvements |
| 02/15/2007 | US20070036666 Rotary fluid machine |
| 02/15/2007 | DE102005037729A1 Joule process engine, has screw compressor and screw expander, each with rotor provided with twelve screw pistons with convex circular arc profile in cross section where rotors are made from aluminum alloy as precision pressure cast part |
| 02/14/2007 | EP1751425A2 Rotary vane pump |
| 02/14/2007 | CN2869390Y Sealed rotary compressor casing and cylinder fixing structure |
| 02/14/2007 | CN2869389Y Screw compressor rotor |
| 02/14/2007 | CN1912393A 螺杆机 Screw Machine |
| 02/14/2007 | CN1912392A Method and system for positioning scroll-type fluid machine |
| 02/14/2007 | CN1300464C 旋转式压缩机 Rotary compressor |
| 02/14/2007 | CN1300450C 负压泵 Vacuum pump |