| Patents for F04B 25 - Multi-stage pumps specially adapted for elastic fluids (1,208) |
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| 02/17/2015 | US8956128 Spherical expansion compressor adapted to variable working conditions |
| 02/12/2015 | DE102014215663A1 Taumelscheibenverdichter mit variabler Verdrängung Swash plate type compressor with variable displacement |
| 02/10/2015 | US8951021 Dual pump/dual bypass fuel pumping system |
| 01/27/2015 | CA2769353C Ultra high pressure pumps |
| 01/21/2015 | CN204113568U 无油活塞二级压缩装置 Two oil-free piston compression device |
| 01/21/2015 | CN102667154B 用于变排量压缩机的排量控制阀 For variable displacement compressor displacement control valve |
| 01/15/2015 | WO2015004217A1 Piston compressor in a star arrangement and method for the operation thereof |
| 01/15/2015 | DE112013002118T5 System und Verfahren für einen Kompressor System and method for a compressor |
| 01/15/2015 | DE102014213391A1 Kolbenkompressor in Sternanordnung und Verfahren zum Betrieb Reciprocating compressor in a star configuration and method of operation |
| 01/14/2015 | CN101943152B 多级压缩机及摆动活塞 Multi-stage compressor and swing piston |
| 01/07/2015 | CN204082488U 一种低能耗压缩空气冷却系统 A low power air cooling system |
| 01/07/2015 | CN204082474U 一种液驱气往复式高压气体自动增压装置 One kind of high-pressure liquid purging gas reciprocating automatic pressure device |
| 01/07/2015 | CN104265597A 液驱气往复式高压气体自动增压装置及其增压方法 Automatic pressurization system was purged and pressurized gas reciprocating high pressure method |
| 01/06/2015 | US8926293 Motor-pump assembly |
| 12/31/2014 | CN204061088U 一种活塞式压缩机的压缩机构 One kind of piston type compressor compression mechanism |
| 12/30/2014 | CA2621748C System and method for providing oxygen |
| 12/25/2014 | US20140377080 Integrated pump and compressor and method of producing multiphase well fluid downhole and at surface |
| 12/18/2014 | US20140369858 Device and method for preparing liquified natural gas (lng) fuel |
| 12/10/2014 | CN204003322U 无油四级空气压缩机 Four oil-free air compressor |
| 12/10/2014 | CN204003321U 天然气气体压缩机 Natural gas compressor |
| 12/10/2014 | CN204003320U 一种天然气气体压缩机 One kind of natural gas compressor |
| 12/10/2014 | CN204003319U 一种多级压缩式空压机 A multi-stage compression-type compressor |
| 12/10/2014 | CN102575694B 用于控制可变排量液压泵的方法和装置 Method and apparatus for controlling a variable displacement hydraulic pump |
| 12/04/2014 | US20140356196 Natural gas compressor |
| 10/09/2014 | WO2014165243A1 Multi-stage compressors, insert kits for multi-stage compressors, liquefaction systems, and associated systems, processes and methods |
| 10/02/2014 | US20140294615 Actuating Device For An Adjustable Convertible Top System Of A Motor Vehicle |
| 10/02/2014 | DE102014205309A1 Kolbenkompressor Piston Compressor |
| 09/23/2014 | US8840377 Fluid compressor and motor vehicle refuelling apparatus |
| 09/04/2014 | WO2014133671A1 High pressure downhole pump assembly |
| 09/02/2014 | US8821132 Device and method for preparing liquefied natural gas (LNG) fuel |
| 08/28/2014 | WO2014130698A1 Metal/oxygen battery with multistage oxygen compression |
| 08/28/2014 | US20140241910 Submersible pump |
| 08/13/2014 | CN103982395A 一种氧气增压机 One kind of oxygen booster |
| 08/07/2014 | WO2014121251A2 Gas compressor |
| 08/07/2014 | US20140219830 Compressors for natural gas and related devices, systems, and methods |
| 08/06/2014 | CN103967745A 同平面多缸多级凸轮组合压缩机 Plane with a combination of multi-cylinder multi-stage compressor cam |
| 08/06/2014 | CN103967744A 同平面多缸多级组合压缩机 Planar multi-cylinder combination with multi-stage compressor |
| 08/06/2014 | CN103967743A 磁力式同平面多缸多级组合压缩机 Magnetic-type multi-cylinder with a flat-screen multi-stage compressor combination |
| 08/06/2014 | CN103967742A 磁力式同平面多缸多级凸轮组合压缩机 Magnetic-type multi-cylinder with a flat-screen multi-stage compressor combination cam |
| 08/06/2014 | CN103967588A 分缸式多功能气动机 Sub-cylinder multi-function pneumatic machine |
| 07/30/2014 | CN203742928U 叠加式动力冷却塔水力风机 Modular hydraulic power cooling tower fan |
| 07/30/2014 | CN103953522A 低压气体升压机 Low-pressure gas booster |
| 07/24/2014 | US20140205472 Dual pump/dual bypass fuel pumping system |
| 07/24/2014 | DE102013001147A1 Mehrstufiger Kolbenverdichter Multi-stage piston compressor |
| 07/23/2014 | CN203730240U 一种车用双缸双级空压机 A vehicle with twin dual-stage air compressor |
| 07/17/2014 | US20140199192 Fuel injection pump |
| 07/16/2014 | CN203717272U 一种改进型合成氨工艺用压缩机出口双进单出缓冲器装置 An improved process using ammonia compressor outlet double single out buffer means |
| 07/16/2014 | CN103925188A 一种三级半高压打气泵 Of a three and a half dozen high-pressure pump |
| 07/03/2014 | WO2014104420A1 Variable displacement swash plate type compressor |
| 07/02/2014 | CN103899510A 超高压空气压缩机 Ultrahigh-pressure air compressor |
| 06/25/2014 | CN203670128U 同平面多缸多级组合压缩机 Multistage combination with flat multi-cylinder compressor |
| 06/25/2014 | CN103890391A 用于压缩机的控制阀 A control valve for a compressor |
| 06/24/2014 | US8757987 Vacuum pump for differentially pumping multiple chambers |
| 06/18/2014 | DE102012223114A1 Dual-piston compressor unit for pneumatic spring system of vehicle, has motor with drive shaft whose axis is arranged eccentrically to central axis of two cylinders in opposing state |
| 06/17/2014 | CA2710270C Radial cam-driven compressor and cam-driven compressor assemblies |
| 06/10/2014 | CA2749562C Unloader system and method for a compressor |
| 05/27/2014 | US8734126 Screw compressor |
| 05/14/2014 | CN103790798A 一种高压气泵 A high-pressure pump |
| 05/13/2014 | US8721299 Piston member, an apparatus comprising the piston member, and methods and use of the piston member and the apparatus |
| 05/06/2014 | US8714941 Motor-pump assembly |
| 04/23/2014 | CN203560054U Coplanar multi-cylinder multistage combination compressor |
| 04/02/2014 | CN203515991U Magnetic-type coplanar multi-cylinder multistage cam combined compressor |
| 04/02/2014 | CN102052279B High-speed piston type gas compressor |
| 03/26/2014 | CN203499944U Vertical star-shape high-pressure air compressor |
| 03/19/2014 | EP2708745A1 Multi-stage piston type compressor with idler valves to create an idle running function |
| 03/13/2014 | DE102012108576A1 Mehrstufiger Kolbenverdichter mit Leerlaufventilen zur Erzeugung einer Leerlauffunktion Multi-stage piston compressor with idle valves for generating an idle function |
| 03/11/2014 | US8668468 Oil pump system for automatic transmission |
| 03/06/2014 | WO2014033563A2 Simplified construction multistage reciprocating volumetric compressor |
| 02/25/2014 | US8657588 Compression apparatus |
| 02/19/2014 | EP2697513A1 Pressure boosting system |
| 02/19/2014 | CN203441697U Piston type full-oil-less air compressor |
| 02/19/2014 | CN102066752B Reciprocating compressor with rotary valve |
| 02/13/2014 | WO2014023586A1 Device for compressing a gaseous fluid |
| 02/11/2014 | CA2732482C Fluid compression system |
| 01/22/2014 | CN102392808B High-pressure air pump |
| 01/16/2014 | US20140017062 Vacuum pump with longitudinal and annular seals |
| 12/25/2013 | CN103477072A Pressure boosting system |
| 12/18/2013 | EP2673506A1 Compressor circuit for a pneumatic control device of a vehicle |
| 12/03/2013 | US8596991 Thermally efficient multiple stage gear pump |
| 11/27/2013 | CN103410697A Piston type oil-less air compressor |
| 11/20/2013 | CN103403348A Gas compressor |
| 11/13/2013 | EP2661559A1 Double-acting refrigeration compressor |
| 11/13/2013 | EP2661557A1 Gas compressor |
| 11/12/2013 | US8579601 Multistage dry vacuum pump |
| 11/07/2013 | WO2013164867A1 Hydraulic multiplier device for compressing gas |
| 10/30/2013 | CN103380298A Valve plate assembly of compressor |
| 10/30/2013 | CN103375209A Liquid-gas circulating waste heat pressure conversion stepped air compressing multifunctional developing engine |
| 10/29/2013 | US8568108 Fluid channeling device for back-to-back compressors |
| 10/23/2013 | EP2652330A1 Compressor, compressed-air supply system, pneumatic system and method for operating a compressed-air supply system |
| 10/23/2013 | CN203248326U Coaxial gas pressurization mechanism moving in same direction |
| 10/03/2013 | US20130259712 Vacuum evacuation apparatus |
| 09/18/2013 | CN203201742U Magnetic force type same-plane multi-cylinder and multistage combined compressor |
| 09/11/2013 | CN103291580A Minitype high-pressure air compressor |
| 09/11/2013 | CN102046971B Method and device for conveying compressed gas |
| 09/04/2013 | EP2634426A1 Two-stage pump |
| 09/04/2013 | CN203175785U 天然气压缩机 Natural Gas Compressor |
| 09/04/2013 | CN103282656A Double-acting refrigeration compressor |
| 09/03/2013 | US8522538 Systems and methods for compressing and/or expanding a gas utilizing a bi-directional piston and hydraulic actuator |
| 08/28/2013 | CN203161474U Natural gas compressor |
| 08/21/2013 | CN103256201A Coaxially homodromous gas pressurization mechanism and gas pressurization method |