| Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462) |
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| 04/02/2008 | CN101153591A Circular side bevel rotor pump |
| 04/02/2008 | CN101153585A Evacuation apparatus |
| 04/02/2008 | CN100378337C Overheating protection apparatus of scroll compressor |
| 04/02/2008 | CN100378335C Dual volume-ratio scroll machine |
| 04/02/2008 | CN100378334C Scroll compressor |
| 04/02/2008 | CN100378332C Refrigerant compressor, and refrigerating machine using the same |
| 03/27/2008 | WO2008035690A1 Rotation preventing member and scroll compressor |
| 03/27/2008 | WO2008034551A1 A rotary pump with vanes |
| 03/27/2008 | US20080075609 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 03/27/2008 | DE102007039628A1 Spiralverdichter Scroll compressor |
| 03/27/2008 | DE102007039190A1 Positive displacement supercharger e.g. Roots type or screw type compressor, for supercharging internal combustion engine, has fan driven by pulley and positioned to blow cooling air directly onto front cover of case for cooling oil in case |
| 03/27/2008 | DE102007036213A1 Pumpe Pump |
| 03/26/2008 | EP1773434A4 Method and apparatus for reducing noise in a roots-type blower |
| 03/26/2008 | CN201041159Y Composite star-wheel sheet for double screw compressor |
| 03/26/2008 | CN201041158Y Low noise compact type movable type single screw compressor |
| 03/26/2008 | CN201041157Y Roots blower units |
| 03/26/2008 | CN101151465A Scroll fluid machine |
| 03/26/2008 | CN101149053A Vortex fluid machinery |
| 03/26/2008 | CN100376815C Lubricating-fluid infusion apparatus |
| 03/26/2008 | CN100376801C Vacuum pump for vehicle |
| 03/26/2008 | CN100376800C Fluid compressor |
| 03/26/2008 | CN100376798C Vortex compressor |
| 03/26/2008 | CN100376797C Vortex compressor |
| 03/26/2008 | CN100376792C Hermetic compressor |
| 03/25/2008 | US7347678 Friction reducing seal ring for gear pump |
| 03/25/2008 | US7347676 System for the construction of pumps, compressor, and motor engines, formed by a rotary chamber and pistons which are driven in the same direction at varying velocities alternatively opposite to each other, inside a fixed open or closed structure |
| 03/25/2008 | US7347673 Fluid machine served as expansion device and compression device |
| 03/20/2008 | DE102007000410A1 Verdichterlager Compressor bearing |
| 03/19/2008 | EP1900943A1 Method of controlling the stopping operation of vacuum pump and device therefor |
| 03/19/2008 | EP1899608A1 Rotary vacuum pump |
| 03/19/2008 | EP1899606A1 Gear pump with improved inlet port |
| 03/19/2008 | EP1220736A4 Ergonomically friendly random orbital sander construction |
| 03/19/2008 | CN201037461Y Rotary piston compressor with stage-shape spring hole |
| 03/19/2008 | CN201037460Y Rotary compressor double-exhaust structure |
| 03/19/2008 | CN101147003A Hybrid compressor |
| 03/19/2008 | CN101144475A Supercharger with housing internal noise attenuation |
| 03/19/2008 | CN101144474A Scroll machine |
| 03/19/2008 | CN100375849C Vortex compressor with oil adjusting function |
| 03/19/2008 | CN100375847C Device for decreasing rotary compressor lubricant oil loss discharge |
| 03/19/2008 | CN100375846C Anti-reverse device of vortex compressor |
| 03/19/2008 | CN100375845C Method for machining baffle slot of compressor |
| 03/18/2008 | US7344367 Rotary compressor having a discharge valve |
| 03/18/2008 | US7344366 Hermetic compressor having a high pressure chamber |
| 03/18/2008 | US7344365 Scroll compressor with bypass holes communicating with an intake chamber |
| 03/18/2008 | US7344364 Fluid machine |
| 03/18/2008 | US7343894 Modular rotary engine |
| 03/13/2008 | WO2008030572A1 Compressor data module |
| 03/13/2008 | WO2008030491A2 Two stage pressure regulation system for variable displacement hydraulic pumps |
| 03/13/2008 | WO2008030014A1 Scroll compressor |
| 03/13/2008 | WO2008029759A1 Screw pump and screw rotor |
| 03/13/2008 | US20080063553 Flanged sleeve guide |
| 03/13/2008 | CA2662482A1 Compressor data module |
| 03/12/2008 | EP1898096A2 Lobe pump |
| 03/12/2008 | CN201034078Y Minitype wiper type air pump |
| 03/12/2008 | CN201034077Y Vehicle-carrying coal bed gas compressor arrangement |
| 03/12/2008 | CN101142410A Volumetric rotary machine with rotors having asymmetric profiles |
| 03/12/2008 | CN101142409A Apparatus for preventing vacuum of scroll compressor |
| 03/12/2008 | CN101139991A Screw rod line of novel screw air compressor |
| 03/12/2008 | CN101139990A Impeller-type compressor |
| 03/12/2008 | CN100374727C Low-noise Roots blower |
| 03/12/2008 | CN100374726C Fixed structure of constant vortex in vortex type compressor |
| 03/12/2008 | CN100374177C Rotating compressor |
| 03/11/2008 | US7341440 Scroll compressor |
| 03/11/2008 | US7341439 Scroll fluid machine having an adiabatic expansion chamber |
| 03/11/2008 | US7341438 Scroll-type fluid machine including passage formed in movable scroll |
| 03/06/2008 | WO2008026496A1 Movable vane compressor |
| 03/06/2008 | WO2008026494A1 Vane type compressor |
| 03/06/2008 | WO2008026428A1 Multi-stage rotary fluid machine and refrigeration cycle device |
| 03/06/2008 | US20080056913 Capacity Varying Type Rotary Compressor |
| 03/06/2008 | US20080053438 Portable ventilator system |
| 03/06/2008 | DE102006040933A1 Two stage stage rotation piston compressor for fluids, has automatically controlled radial blades as hot-cold machine or hot gas motor, housing with housing cover of rotor, in which four rotor slits are provided |
| 03/06/2008 | DE10009673B4 Spiralkompressor Scroll compressor |
| 03/05/2008 | CN201031797Y Totally enclosed double screws type ammonia refrigerating compressor |
| 03/05/2008 | CN201031796Y Swirl type cold compressor |
| 03/05/2008 | CN201031795Y High flow rate high-pressure pump |
| 03/05/2008 | CN101135309A Multi-stage rotary compressor and its method for setting elimination volume ratio |
| 03/05/2008 | CN101135308A Rotary compressor |
| 03/05/2008 | CN101135307A Vane room unit and rotary compressor having the same |
| 03/05/2008 | CN100373056C Variable sliding-vane central rotation compressor |
| 03/05/2008 | CN100373055C Screw compressor injected with water |
| 03/04/2008 | US7338268 Discharge valve device of a compressor |
| 03/04/2008 | US7338267 Hinged paddle pump |
| 03/04/2008 | US7338266 Screw pump and method of operating the same |
| 03/04/2008 | US7338265 Scroll machine with single plate floating seal |
| 03/04/2008 | US7338261 Hybrid compressor |
| 02/28/2008 | WO2008023417A1 Oldham's coupling structure of scroll fluid machine |
| 02/28/2008 | WO2008022726A1 Rotating-slide vacuum pump or compressor of block design having a disc-rotor synchronous motor which is mounted on flying bearings |
| 02/28/2008 | US20080050995 Hydroxyl-Terminated Thiocarbonate Containing Compounds, Polymers, and Copolymers, and Polyurethanes and Urethane Acrylics Made Therefrom |
| 02/28/2008 | DE102006039958A1 Drehschieber-Vakuumpumpe bzw.-Verdichter in Blockbauweise mit fliegend gelagertem Scheibenläufer-Synchronmotor Rotary vane vacuum pump or compressor block design with cantilevered disc rotor synchronous motor |
| 02/27/2008 | CN201027651Y Helical-lobe compressor rotor |
| 02/27/2008 | CN201027650Y Roots vacuum pump |
| 02/27/2008 | CN101133126A Composition for slide member, slide member and fluid machinery |
| 02/27/2008 | CN101131157A Scroll compressor |
| 02/27/2008 | CN100371605C Eccentric coupling device in radial compliance scroll compressor |
| 02/27/2008 | CN100371604C Eccentric coupling device in radial compliance scroll compressor |
| 02/27/2008 | CN100371603C Eccentric bush structure in radial compliance scroll compressor |
| 02/27/2008 | CN100371600C Vortex type compressor for preventing leakage of compressed gas |
| 02/27/2008 | CN100371599C Discharge portion for screw compressor with tangential flow guide cusp |
| 02/27/2008 | CN100371598C Scroll compressor |
| 02/26/2008 | US7335004 Apparatus for varying capacity in scroll compressor |