Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps › F04C 25 - Adaptations for special use of pumps for elastic fluids
Patents for F04C 25 - Adaptations for special use of pumps for elastic fluids (1,852)
01/2013
01/02/2013CN202646011U Double-stage mixing type roots vacuum pump
12/2012
12/27/2012WO2012176991A2 Screw-type vacuum pump having a direct cooling device
12/27/2012WO2011135324A3 Scroll pump
12/26/2012CN202628522U Alarm automobile vacuum pump
12/26/2012CN101985935B Three-axis Roots vacuum pump
12/20/2012CA2745009A1 Steam-generator and gas-compressor systems using water-based evaporation coolants, sealants and lubricants
12/19/2012CN102828952A Dry type vacuum pump unit and a dry type vacuum pump with same
12/12/2012EP2532895A1 Vacuum pump with pump rotor bearings on a single side
12/12/2012CN202597104U Sliding valve vacuum pump
12/12/2012CN101943164B Vacuum pump for vehicles
12/06/2012WO2012165646A1 Vacuum pump
12/06/2012WO2012165645A1 Vacuum pump
12/05/2012EP2530325A1 Pump
12/05/2012CN202579194U Vacuum pump
12/05/2012CN101855454B Multi-stage dry pump
11/2012
11/21/2012EP2524142A1 Progressive cavity compressor
11/14/2012CN202531431U Vertical claw type vacuum pump
11/14/2012CN202531430U Mini vacuum pump
11/14/2012CN202531429U Manual type vacuum pump
11/14/2012CN202531428U Oil-gas separation vacuum pump
11/14/2012CN202531427U Improved vacuum pump for automobile
11/07/2012CN202520554U Brake-boosting vacuum pump
10/2012
10/31/2012EP2518323A1 Multi-stage vacuum pump
10/31/2012EP2516863A2 Dry vacuum pump with purge gas system and method of purging
10/26/2012WO2011036590A3 Device and method for cleaning a pump chamber of a vacuum pump
10/24/2012CN202500773U Vacuum composite gear pump
10/18/2012WO2012140406A1 Vacuum pumping system
10/17/2012CN202493440U Vacuum pump
10/17/2012CN202493439U Cylinder type vacuum pump
10/17/2012CN202493438U Improved water ring vacuum pump
10/17/2012CN202493437U Water ring vacuum pump
10/17/2012CN202493436U Improved vacuum pump
10/17/2012CN202493435U Vacuum pump for use in automobile
10/17/2012CN101985937B Triaxial claw vacuum pump
10/10/2012CN102725532A 泵 Pump
10/03/2012CN202468332U Exhaust structure of sliding valve vacuum pump
10/03/2012CN202468326U Vacuum pump
10/03/2012CN102713299A Pumping method and apparatus with low power consumption
10/03/2012CN102713287A Vacuum exhaust device and vacuum exhaust method, and substrate treatment device
09/2012
09/27/2012WO2012126137A1 Claw type vacuum pump
09/26/2012EP2501936A2 Method and device for pumping with reduced power use
09/20/2012WO2012124277A1 Vacuum pump, vacuum exhaust device, and method for operating vacuum pump
09/20/2012WO2012123364A1 Device for producing a vacuum
09/19/2012CN202441603U Vacuum pump with rolling columns and sliding sheet
09/19/2012CN102678560A 油旋转真空泵 Oil rotary vacuum pump
09/12/2012CN102667163A Multi-stage vacuum pump
09/06/2012DE102011015464B4 Vakuumpumpeinrichtung und -verfahren für staubhaltige Gase Vacuum pump means and procedures for dusty gases
09/05/2012CN202417943U Sliding vane rotary vacuum pump of high vacuum degree
09/05/2012CN202417942U Vortex electric vacuum pump
08/2012
08/23/2012WO2012111561A1 Process for manufacturing casing, and vacuum pump
08/22/2012CN202391738U Roots vacuum pump
08/22/2012CN102080657B Enclosed rolling rotor compressor
08/16/2012WO2011138318A3 Screw vacuum pump
08/15/2012CN101349072B Vacuum system
08/09/2012DE102009043133B4 Vorrichtung und Verfahren zum Reinigen eines Pumpenraumes einer Vakuumpumpe Apparatus and method for cleaning a pump chamber of a vacuum pump
08/08/2012CN102628441A Vacuum pump
08/08/2012CN101182845B Dry-type vacuum pump
08/01/2012CN202360403U Improved roots vacuum unit
08/01/2012CN202360402U Roots vacuum pump
08/01/2012CN202360401U Improved single-stage oil seal sliding vane rotary vacuum pump
08/01/2012CN202360400U Improved Roots vacuum pump device
08/01/2012CN202360399U Improved rotary-vane type oil seal vacuum pump
08/01/2012CN202360398U Rotary-vane vacuum pump
08/01/2012CN202360397U Improved single stage rotary-vane vacuum pump
08/01/2012CN202360396U Improved rotary-vane vacuum pump
08/01/2012CN202360392U Improved vortex vacuum pump
07/2012
07/25/2012CN202348681U Exhaust duct structure of sliding-vane rotary vacuum pump
07/25/2012CN202348673U Single-stage sliding valve vacuum pump
07/25/2012CN202348672U Two-stage slide valve vacuum pump
07/25/2012CN202348671U Improved Roots vacuum pump
07/25/2012CN202348670U Improved air-cooled type roots vacuum pump
07/25/2012CN202348669U Improved slide valve vacuum pump
07/19/2012WO2012096057A1 Dual-shaft rotor pump
07/12/2012WO2011067499A3 Sound attenuator device for a vacuum pump
07/12/2012WO2011061429A3 Method and device for pumping with reduced power use
07/11/2012CN202326262U 一种滑阀真空泵泵腔辅助进气装置 A valve vacuum pump chamber auxiliary intake device slip
07/11/2012CN202326261U Exhaust port structure of scroll vacuum pump
07/11/2012CN202326255U 一种滑阀真空泵的供油系统 One kind of vacuum pump oil supply system
07/11/2012CN202326253U 滑阀真空泵主轴定位结构 Vacuum pump spindle positioning structure
07/11/2012CN202326247U Magnetic drive screw vacuum pump
07/11/2012CN202326246U Roots and claw-type rotor combined multi-stage dry vacuum pump
07/11/2012CN202326237U 一种立式干式螺杆真空泵 Provide a vertical dry screw vacuum pump
07/04/2012EP2470790A1 Vacuum pump with pressure equalization
07/04/2012CN202301037U 一种真空泵 In a vacuum
07/04/2012CN102536822A Pin roller sliding vane vacuum pump
07/04/2012CN101532492B Screw-type vacuum pump
06/2012
06/28/2012DE102010061494A1 Pumpvorrichtung Pumping device
06/27/2012CN101985939B Dry vacuum pump with shaft end dynamic seal structure
06/27/2012CN101985936B Asymmetric claw type vacuum pump
06/21/2012DE102011054607A1 Vakuumpumpe Vacuum pump
06/20/2012EP2466141A1 Dry pump
06/20/2012EP2464871A2 Vacuum pump
06/20/2012EP2137411B1 Vacuum pump
06/20/2012CN202280624U 一种废旧油处理生产线的罗茨真空泵排压结构 One kind of waste oil processing line Roots pump discharge pressure structure
06/20/2012CN101657644B Vane type vacuum pump
06/14/2012CA2818294A1 Vacuum pump for applications in vacuum packaging machines
06/13/2012CN101225821B Fluid machine connected to a drive source via a magnetic coupling
06/06/2012CN202266431U 一种真空泵转子 In a vacuum rotor
05/2012
05/31/2012WO2012070282A1 Protective mesh for vacuum pump and vacuum pump with same
05/31/2012WO2012069347A2 Microsystems for compressing or for converting a pressure difference into a displacement
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