| Patents for F04C 25 - Adaptations for special use of pumps for elastic fluids (1,852) |
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| 09/07/2011 | CN102177346A Dry pump |
| 09/01/2011 | WO2010136470A3 Wheel |
| 09/01/2011 | DE102009008906B4 Verfahren zur Herstellung von Drehschiebern Process for the preparation of rotary valves |
| 08/31/2011 | CN102171458A Integrated pump for compressible fluids |
| 08/31/2011 | CN101608619B Spiral anti-clawed vacuum pump |
| 08/24/2011 | CN102162447A Slide valve type vacuum pump applicable to tile vacuum extruder |
| 08/17/2011 | CN102155409A Air-cooled rotary-vane vacuum pump with oil temperature control system and oil temperature control method thereof |
| 08/17/2011 | CN102155408A Rotary-vane vacuum pump suitable for tile vacuum extruder |
| 08/11/2011 | WO2011096274A1 Machine tool for machining screw rotor and method of machining screw rotor using same |
| 08/04/2011 | WO2011092930A1 Pump |
| 07/20/2011 | EP2345813A1 Dry pump |
| 07/20/2011 | CN101676563B Vacuum pump |
| 07/13/2011 | EP2342462A2 Method for operating an oil-tight vacuum pump and oil-tight vacuum pump |
| 07/13/2011 | CN102121475A Trilobal water-cooling roots vacuum pump |
| 07/07/2011 | WO2011081111A1 Negative pressure effect device |
| 07/07/2011 | WO2011080980A1 Vacuum exhaust device and vacuum exhaust method, and substrate treatment device |
| 07/07/2011 | WO2010122021A3 Vacuum pump housing and cooling element set for a vacuum pump housing |
| 07/07/2011 | WO2010122020A3 Vacuum pump housing |
| 06/30/2011 | WO2011077930A1 Multi-stage vacuum pump |
| 06/30/2011 | WO2011077105A2 Pump |
| 06/29/2011 | CN101383534B Motor for vacuum pump |
| 06/22/2011 | CN201874823U Trefoil water-cooled Roots vacuum pump |
| 06/22/2011 | CN201874822U Screw type vacuum pump |
| 06/22/2011 | CN102105653A Use of a rolling-element bearing for bearing rotating components in vacuum devices and vacuum device |
| 06/16/2011 | WO2010136472A3 Microsystems for converting pressures and compression |
| 06/15/2011 | EP2331823A1 Vacuum pump |
| 06/08/2011 | CN201858151U Roots vacuum pump unit |
| 06/03/2011 | WO2011065218A1 Surface protective film, gas contact member, gas processing apparatus, and mechanical pump |
| 06/01/2011 | CN201851360U Sliding sheet type vacuum pump |
| 06/01/2011 | CN102080657A Enclosed rolling rotor compressor |
| 05/26/2011 | WO2011061429A2 Method and device for pumping with reduced power use |
| 05/25/2011 | CN201843783U Claw type oilless vacuum pump |
| 05/25/2011 | CN1944526B Vacuum pump vane and its producing method |
| 05/18/2011 | CN201836055U Vacuum pump with slide valve |
| 05/18/2011 | CN201836051U Air replenishing and cooling high negative pressure Roots vacuum pump |
| 05/12/2011 | WO2010122004A3 Vacuum pump housing |
| 05/12/2011 | DE102010009083A1 Vacuum pump e.g. liquid-sealed vacuum pump, for use as rotary vane pump, has two pumping stages respectively arranged at vacuum side and pressure side, where one of pumping stages is implemented as screw pumping stage with screw pump unit |
| 05/12/2011 | DE102009032752B4 Drehscheibenverdichter zum agglomerationsfreien Überführen von partikelgeladenen Gasvolumina, Verfahren zum Betreiben desselben und Verwendung Turntable compressor for agglomeration-free transfer of particle loaded gas volumes method thereof and use of operating |
| 05/11/2011 | CN201827078U Vacuum device of mixed aromatics extraction and separation system |
| 05/11/2011 | CN201827077U Vacuum pump and blades thereof |
| 05/05/2011 | WO2010130238A3 Vacuum pump |
| 04/28/2011 | WO2011011434A3 Gaseous fluid pump |
| 04/28/2011 | DE102009043133A1 Vorrichtung und Verfahren zum Reinigen eines Pumpenraumes einer Vakuumpumpe Apparatus and method for cleaning a pump chamber of a vacuum pump |
| 04/27/2011 | CN102032186A Vertical swirling liquid-ring vacuum pump |
| 04/27/2011 | CN101392748B Horizontal type dry vacuum pump |
| 04/27/2011 | CN101375063B Vacuum pump unit |
| 04/20/2011 | EP2312166A1 Vane pump with a supplementary suction passage |
| 04/20/2011 | EP2310632A1 Use of a rolling-element bearing for bearing rotating components in vacuum devices and vacuum device |
| 04/20/2011 | CN201802623U Synchronous air flue no-pulse paw-shaped dry type oiless vacuum pump |
| 04/20/2011 | CN101349073B Vacuum collecting and discharging system |
| 04/13/2011 | CN201794789U Water-sealed single-stage sliding vane rotary vacuum pump |
| 04/07/2011 | WO2011039812A1 Positive displacement dry vacuum pump |
| 04/06/2011 | CN201786661U Miniature oil seal type double-stage vacuum pump |
| 04/06/2011 | CN101203677B 旋转式真空泵 Rotary vacuum pump |
| 03/31/2011 | WO2011037178A1 Dry vacuum pump |
| 03/31/2011 | WO2011037132A1 Oil rotary vacuum pump |
| 03/30/2011 | CN201779017U Vacuum pump rotor axial floating positioning device |
| 03/30/2011 | CN101158353B Composite dry vacuum pump having roots and screw rotor |
| 03/23/2011 | CN201771768U Double-arc double-positioning vacuum pump |
| 03/16/2011 | CN201763610U Shaft and shaft sleeve of Roots vacuum pump |
| 03/16/2011 | CN201763609U Rotor and shaft structure of multi-stage dry vacuum pump |
| 03/16/2011 | CN101985939A Dry vacuum pump with shaft end dynamic seal structure |
| 03/16/2011 | CN101985938A Three-axis composite dry pump with screw and roots rotor |
| 03/16/2011 | CN101985937A Triaxial claw vacuum pump |
| 03/16/2011 | CN101985936A Asymmetric claw type vacuum pump |
| 03/16/2011 | CN101985935A Three-axis Roots vacuum pump |
| 03/03/2011 | WO2011023448A1 Vacuum pump with pressure equalization |
| 02/24/2011 | WO2010066988A3 Dry vacuum pump, and associated assembly method |
| 02/17/2011 | WO2011019048A1 Dry pump |
| 02/17/2011 | DE102009038132A1 Vakuumpumpe Vacuum pump |
| 02/17/2011 | DE102008063132B4 Verfahren zur Identifizierung eines Typs einer Vakuumpumpe A method for identifying a type of vacuum pump |
| 02/09/2011 | CN201739179U Compound sealing device of claw type dry vacuum pump |
| 02/09/2011 | CN201739178U Novel vacuum pump |
| 02/09/2011 | CN201739175U Vacuum pump for improving pumping speed and vacuum degree |
| 02/02/2011 | CN201730826U Axial double-action type liquid-ring vacuum pump |
| 01/27/2011 | WO2011011434A2 Gaseous fluid pump |
| 01/26/2011 | CN201723446U Dry vacuum micro-system |
| 01/19/2011 | EP2275685A2 Vacuum pump for vehicles |
| 01/18/2011 | US7871254 Magnetic bearing and coupling device |
| 01/12/2011 | CN101943164A Vacuum pump for vehicles |
| 01/05/2011 | CN201696296U Vacuum pump structure |
| 12/29/2010 | WO2010149738A1 Method for predicting a rotation fault in the rotor of a vacuum pump, and associated pumping device |
| 12/29/2010 | EP2267313A1 Cleaning method of a rotary piston vacuum pump |
| 12/29/2010 | CN101392750B Dry vacuum pump |
| 12/23/2010 | WO2010125368A3 Vacuum pump |
| 12/15/2010 | CN201671816U Vacuum pump for improving emptying rate |
| 12/15/2010 | CN201671815U Double-inlet double-outlet vacuum pump |
| 12/15/2010 | CN101210556B Roots dry type vacuum pump rotor capable of directly discharging to air and processing technique thereof |
| 12/02/2010 | WO2010136472A2 Microsystems for converting pressures and compression |
| 12/02/2010 | WO2010136470A2 Wheel |
| 12/01/2010 | CN201661465U Novel direct connection vacuum pump |
| 12/01/2010 | CN101120175B Vane pump |
| 12/01/2010 | CN101120174B Vane pump |
| 11/25/2010 | WO2010134427A1 Dry vacuum pump |
| 11/24/2010 | CN201650735U Minitype vacuumizing device |
| 11/24/2010 | CN201650734U Compound corrosion-resistant water-ring type vacuum pump |
| 11/24/2010 | CN201650733U Vacuum pump |
| 11/17/2010 | EP2250375A1 Integrated pump for compressible fluids |
| 11/17/2010 | EP1434896B1 Multi-chamber installation for treating objects under vacuum, method for evacuating said installation and evacuation system therefor |
| 11/17/2010 | CN201636007U Magnetic force liquid-ring vacuum pump |