| Patents for F04C 25 - Adaptations for special use of pumps for elastic fluids (1,852) |
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| 05/31/2012 | DE102011015464A1 Vacuum pump device for evacuating vacuum vessel used for vacuum-treating substrate, has pressure pump that is executed as screw pump by applying atmospheric pressure to outlet |
| 05/30/2012 | EP2456982A2 Gaseous fluid pump |
| 05/30/2012 | CN202250866U Novel rotary vane type vacuum pump |
| 05/30/2012 | CN102483063A 干式真空泵 Dry Vacuum Pumps |
| 05/30/2012 | CN102477983A 两角旋转式真空泵 Corners rotary vacuum pump |
| 05/30/2012 | CN102477982A 双弧面固定刮片真空泵 Double arc fixed blade vacuum pump |
| 05/24/2012 | WO2012066782A1 Vacuum exhaust device coupling structure and vacuum exhaust system |
| 05/24/2012 | WO2012066781A1 Vacuum exhaust device connection structure and vacuum exhaust system |
| 05/23/2012 | CN102472285A 干泵 Dry Pumps |
| 05/23/2012 | CN102472279A 真空泵 Vacuum pump |
| 05/23/2012 | CN102465879A 多级干燥真空泵 Multi-stage dry vacuum pump |
| 05/23/2012 | CN101392749B Vortex vacuum pump |
| 05/16/2012 | DE102010051316A1 Vakuumpumpe Vacuum pump |
| 05/16/2012 | CN102459914A 用于预测真空泵的转子旋转时的故障的方法及相关的抽吸装置 Method for predicting failure of the vacuum pump when the rotation of the rotor and associated suction means for |
| 05/03/2012 | WO2012055734A2 Vacuum pump |
| 05/02/2012 | EP2446147A1 Method for predicting a rotation fault in the rotor of a vacuum pump, and associated pumping device |
| 05/02/2012 | CN102434461A Slide valve vacuum pump |
| 05/02/2012 | CN102434460A Water-sealed single-stage rotary vane vacuum pump |
| 04/11/2012 | CN202187918U 一种高负压罗茨真空泵 Roots of a high vacuum pump |
| 04/11/2012 | CN102414449A 真空泵 Vacuum pump |
| 04/11/2012 | CN102410224A 真空泵 Vacuum pump |
| 04/11/2012 | CN102410223A 具有通风装置的真空泵 Ventilation apparatus having a vacuum pump |
| 04/11/2012 | CN102410219A 一种立式干式螺杆真空泵 To provide a vertical dry screw vacuum pumps |
| 04/05/2012 | WO2012043018A1 Vane pump |
| 04/04/2012 | EP2435706A2 Microsystems for converting pressures and compression |
| 04/04/2012 | EP2435705A2 Wheel |
| 04/04/2012 | CN202182028U 一种汽车真空泵 An automobile pumps |
| 04/04/2012 | CN102405330A 真空泵壳体和用于真空泵壳体的冷却元件组 Pump housing and cooling elements for the pump housing group |
| 03/28/2012 | EP2434156A1 Dry vacuum pump |
| 03/26/2012 | DE202010013190U1 Pumpvorrichtung Pumping device |
| 03/22/2012 | DE102010045881A1 Vakuumpumpe Vacuum pump |
| 03/22/2012 | DE102010045880A1 Vakuumpumpe Vacuum pump |
| 03/21/2012 | CN202170870U 一种新型滑阀式真空泵 A new slide valve vacuum pump |
| 03/15/2012 | DE102010044918A1 Method for determination of working area of high vacuum pumping system, involves describing maximum amount of gas intakeable into high vacuum pump by upper border lines, and defining area lying below curves as working area |
| 03/07/2012 | EP2425137A2 Vacuum pump |
| 03/07/2012 | EP1886025B1 Vane-cell pump |
| 03/07/2012 | CN202157965U 智能调节真空系统 Smart regulation vacuum system |
| 03/07/2012 | CN202157964U 一种智能调节真空系统 An intelligent regulator vacuum system |
| 03/07/2012 | CN202157963U 一种新型防返油旋片式真空泵 A new anti-back oil rotary vane vacuum pump |
| 03/01/2012 | DE102010055798A1 Vakuumpumpe Vacuum pump |
| 02/29/2012 | CN102365462A Vane pump |
| 02/29/2012 | CN102365461A 叶片泵 Vane pump |
| 02/23/2012 | WO2011018294A3 Vacuum pump |
| 02/23/2012 | DE10159835B4 Vakuumpumpsystem The vacuum pumping system |
| 02/22/2012 | CN202149030U 一种罗茨真空泵 One kind of Roots vacuum pump |
| 02/08/2012 | CN202140315U 分段式变螺距转子结构 Segmented variable pitch rotor structure |
| 02/08/2012 | CN202140313U 干式螺杆真空泵双摆线转子 Dry Screw Vacuum Pump dual gerotor |
| 02/01/2012 | CN202132237U 一种真空泵转子与缸体安装结构 In a vacuum pump rotor and the cylinder mounting structure |
| 01/26/2012 | WO2012011206A1 Vane compressor |
| 01/25/2012 | CN102330686A Vacuum pump |
| 01/11/2012 | EP1476661B1 Vacuum pump |
| 01/11/2012 | CN202108731U Internal cooling vacuum pump |
| 01/11/2012 | CN102312837A Dry-type vacuum pump |
| 01/11/2012 | CN101865135B Axial float positioning device for rotor shaft of vacuum pump |
| 01/04/2012 | CN202100465U Air cooled roots vacuum pump |
| 01/04/2012 | CN101560976B Energy-saving and environment-friendly vacuum device applied to petrochemical engineering and mixed arene separating system |
| 12/28/2011 | CN202091201U 内啮合圆弧齿面双级组合真空泵 The ring arc tooth surface two-stage vacuum pump combination |
| 12/28/2011 | CN202091200U 防堵塞螺杆真空泵 Anti-blocking screw vacuum pumps |
| 12/21/2011 | EP2397696A1 Vane pump |
| 12/21/2011 | CN102287375A 一种爪型立式无油真空泵 One kind of claw-type vertical oil-free vacuum pump |
| 12/21/2011 | CN101429939B 压缩真空两用机 Squeezed vacuum dual-purpose machine |
| 12/14/2011 | CN202073788U 一种带有油温控制系统的风冷式旋片真空泵 An air-cooled rotary vane vacuum pump with oil temperature control system |
| 12/14/2011 | CN202073787U 一种适用于砖瓦真空挤出机的滑阀式真空泵 One for vacuum brick extruder rotary piston vacuum pump |
| 12/14/2011 | CN202073786U 一种适用于砖瓦真空挤出机的旋片式真空泵 One for vacuum brick extruder rotary vane vacuum pump |
| 12/14/2011 | CN102282371A 干式真空泵 Dry vacuum pump |
| 12/14/2011 | CN102278311A 一种多级干式真空泵转子与轴结构及应用 A multi-stage dry vacuum pump rotor and shaft structure and application |
| 12/14/2011 | CN102278310A 智能调节真空系统 Smart regulation vacuum system |
| 12/14/2011 | CN102278309A 一种真空泵结构 In a vacuum structure |
| 12/14/2011 | CN101012827B 涡旋式流体机械 The scroll-type fluid machine |
| 12/13/2011 | US8075288 Screw pump and pumping arrangement |
| 12/01/2011 | WO2011148797A1 Screw vacuum pump |
| 12/01/2011 | WO2011126032A3 Vacuum pump |
| 11/24/2011 | DE102010021240A1 Method for surface treatment of pumping elements or pump chamber inner walls of vacuum pump, involves flushing pump chamber with dispersion medium which is deposited on pump chamber inner walls or surfaces of pump elements |
| 11/23/2011 | CN202047987U Air-cooled Roots vacuum pump assembly |
| 11/23/2011 | CN102251821A Engine assembly including camshaft with integrated pump |
| 11/17/2011 | WO2011141725A2 Vacuum pumping system |
| 11/16/2011 | CN102242714A Compound seal device of claw type dry vacuum pump |
| 11/16/2011 | CN102242713A Novel vacuum pump |
| 11/16/2011 | CN102242712A Double-inlet and double-outlet vacuum pump |
| 11/16/2011 | CN102242710A Vacuum pump |
| 11/16/2011 | CN102242709A Vacuum pump for improving pumping speed and vacuum degree |
| 11/03/2011 | WO2011135747A1 Vane pump |
| 11/03/2011 | WO2011135746A1 Vane pump |
| 11/02/2011 | CN101641040B Flexible impeller pumps for mixing individual components |
| 11/01/2011 | US8047817 Cleaning method of a rotary piston vacuum pump |
| 10/26/2011 | CN101392751B Large pumping speed high vacuum dry vacuum pump |
| 10/20/2011 | DE102010014884A1 Vakuumpumpe Vacuum pump |
| 10/19/2011 | EP2378125A2 Dry vacuum pump apparatus |
| 10/19/2011 | EP2378122A2 Dry vacuum pump apparatus and method of cooling the same |
| 10/19/2011 | EP2378063A2 Vacuum pump |
| 10/19/2011 | CN102220981A Dry vacuum pump apparatus, exhaust unit and silencer |
| 10/19/2011 | CN102220980A Dry vacuum pump apparatus and method of cooling the same |
| 10/13/2011 | WO2011126032A2 Vacuum pump |
| 10/12/2011 | EP2375074A2 Rotor for a vacuum pump |
| 10/05/2011 | CN202001304U Medium pressure difference roots vacuum pump |
| 10/05/2011 | CN101603536B Electric vacuum pump for automobile |
| 09/28/2011 | CN201991775U 加强型转子 Enhanced rotor |
| 09/21/2011 | CN102192151A Inner cooled type vacuum pump |
| 09/07/2011 | CN201963550U Pump casing of rotary vane vacuum pump |
| 09/07/2011 | CN201963548U Rotating sheet vacuum pump |