| Patents for F04B 1 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (10,723) |
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| 06/20/2012 | CN101611227B Volumetric pump |
| 06/14/2012 | WO2012077157A1 Skew plate-type hydraulic rotary machine |
| 06/14/2012 | WO2012076484A1 Pump, in particular high-pressure fuel pump |
| 06/14/2012 | WO2012076098A1 System having sliding shoes and piston for an axial piston machine |
| 06/14/2012 | WO2012076097A1 Piston machine |
| 06/14/2012 | US20120144996 Axial Piston Pump With Pistons Having Metallic Sealing Rings |
| 06/14/2012 | US20120144995 Offset valve bore in a reciprocating pump |
| 06/14/2012 | DE10344459B4 Kolbenpumpe, insbesondere Hochdruck-Kolbenpumpe Piston pump, in particular high-pressure piston pump |
| 06/14/2012 | DE102010062951A1 Actuating device for e.g. hydrostatic axial piston machine, has coupling device that includes sliding block which is pivotally mounted on actuating piston about rotational axis |
| 06/14/2012 | DE102010062950A1 Actuating device for hydrostatic module, has adjusting piston, pivoted lever connected firmly with the cross beam and radial drill arranged in adjusting piston |
| 06/14/2012 | DE102010062678A1 Pumpe, insbesondere Kraftstoffhochdruckpumpe Pump, in particular high-pressure fuel pump |
| 06/14/2012 | DE102010054415A1 Hydrostatic pump assembly has two displacement pumps, where former displacement pump has working space with high pressure medium flow path that is brought into pressure fluid connection with another working space of latter displacement pump |
| 06/14/2012 | DE102010054044A1 System mit Gleitschuhen und Kolben für eine Axialkolbenmaschine System with sliding blocks and piston for an axial |
| 06/14/2012 | DE102010053804A1 Kolbenmaschine Piston engine |
| 06/13/2012 | CN202273819U Low rotary speed plunger pump device and wind power generation device using same |
| 06/12/2012 | US8197229 Double-headed piston type compressor |
| 06/12/2012 | US8196506 Variable stroke compressor design |
| 06/07/2012 | WO2012075441A1 Regenerative hydraulic pump |
| 06/07/2012 | WO2012072294A1 High-pressure pump |
| 06/07/2012 | WO2012072185A1 Hydrostatic drive |
| 06/07/2012 | US20120141303 Fluid control system |
| 06/07/2012 | CA2725142A1 Rotary reciprocating pump |
| 06/06/2012 | EP2461032A2 High pressure pump |
| 06/06/2012 | CN202266382U 一种水下航行器变排量燃料泵斜盘角控制驱动器 Underwater Vehicle fuel pump variable displacement swash plate angle control drive |
| 06/06/2012 | CN1818379B Piston pump |
| 06/06/2012 | CN101184989B Devices and methods for use in assessing a flow condition of a fluid |
| 06/05/2012 | US8192174 Refrigerant compressor having a connecting rod with a force application point at crank pin which is displaced in a direction of the bearing in relation to the axial center of the crank pin |
| 06/05/2012 | US8192173 Pressure compensated and constant horsepower pump |
| 05/31/2012 | WO2012070881A2 Fluid-circulating device using a cam track and centrifugal force |
| 05/31/2012 | WO2012069734A1 Variable displacement hydraulic machine, in particular for a motor vehicle |
| 05/31/2012 | WO2012069118A1 Axial piston unit having an adjustable displacement volume |
| 05/31/2012 | WO2012069046A1 Radial piston pump |
| 05/31/2012 | DE102010062159A1 Hochdruckpumpe High pressure pump |
| 05/31/2012 | DE102010052561A1 Method for attaching pistons to drive shaft of hydraulic machine, involves compressing securing element for non-positive position securing of pistons in retainer |
| 05/31/2012 | DE102010052559A1 Axialkolbeneinheit mit veränderbarem Verdrängungsvolumen Axial piston variable displacement |
| 05/31/2012 | DE102010052487A1 Pump for conveying fluid from suction area into discharge area, particularly for air conditioner of motor vehicle, has rotor provided with multiple radially extending bore holes |
| 05/30/2012 | EP2456980A2 Suction cutoff unloader valve for compressor capacity control |
| 05/30/2012 | DE202011109897U1 Mehrkolben-Reihenpumpe Multi-piston pump series |
| 05/30/2012 | CN202250658U Special hydraulic-driving pressure testing pump for oil wells |
| 05/30/2012 | CN102483143A 具有连接轭的液压装置 A hydraulic device is connected yoke |
| 05/30/2012 | CN102483031A 环形凸轮以及包括环形凸轮的流体工作机器 An annular cam ring and a fluid working machine comprising a cam |
| 05/30/2012 | CN102483017A 燃料高压泵 High-pressure fuel pump |
| 05/30/2012 | CN102481904A An axial bearing for use in a hydraulic device, a hydraulic transformer and a vehicle with a hydraulic drive system |
| 05/30/2012 | CN101769242B Novel high-pressure radial plunger oil pump |
| 05/24/2012 | WO2012066593A1 Cooling structure for cylinder block and swash plate-type hydraulic device equipped with same |
| 05/24/2012 | WO2012066090A1 Method and control device for the rotational-speed-variable control of an expeller pump unit and expeller pump arrangement |
| 05/24/2012 | WO2012065775A1 Arrangement for mounting the drive shaft of a motor/pump unit, and method for assembling a bearing arrangement of this type |
| 05/24/2012 | WO2012065682A1 Hydraulic piston engine |
| 05/23/2012 | EP2288804B1 High-pressure fuel pump |
| 05/23/2012 | CN102472269A 用于压缩机容量控制的抽吸截流卸载器阀 Suction cutoff unloader valve for the compressor capacity control |
| 05/23/2012 | CN102472268A 用于压缩机容量控制的旁路卸载阀 Unloader valve for bypassing the compressor capacity control |
| 05/23/2012 | CN102472259A 多活塞泵 Multi-piston pump |
| 05/23/2012 | CN102472258A 高压泵 High-pressure pump |
| 05/23/2012 | CN102472257A 高压泵 High-pressure pump |
| 05/23/2012 | CN101979875B Compact high-pressure plunger variable double pump |
| 05/23/2012 | CN101913716B Small reverse osmosis seawater desalting system with energy reclaiming high-pressure pump |
| 05/23/2012 | CN101876302B Multi-cylinder reciprocating pump |
| 05/23/2012 | CN101776055B Drum-type displacement pump |
| 05/23/2012 | CN101487458B Axial variable displacement plunger pump of swash plate |
| 05/22/2012 | US8182239 Control valve, and control valve for variable displacement compressor using the control valve |
| 05/22/2012 | US8181564 Fuel pump |
| 05/18/2012 | WO2012063119A2 Radial cylinder hydraulic machine with improved oscillating radial cylinder |
| 05/18/2012 | WO2012028363A3 Piston pump for delivering fluids, and associated vehicle brake system |
| 05/16/2012 | EP2452073A2 Bypass unloader valve for compressor capacity control |
| 05/16/2012 | DE102011053642A1 Hydrostatic axial piston machine e.g. bent-axis pump, has sleeve freely rotatable around rotational axis with respect to cylinder block and arranged in gap between housing and cylinder block |
| 05/16/2012 | CN102454567A Low-noise and large-power hydraulic plunger pump |
| 05/15/2012 | US8177009 Independent displacement opposing pump/motors and method of operation |
| 05/10/2012 | WO2012059319A1 Pump, in particular a high-pressure fuel pump |
| 05/10/2012 | WO2012059315A1 Pump, in particular high-pressure fuel pump |
| 05/10/2012 | WO2012059298A1 Fuel conveyor for a combustion engine |
| 05/10/2012 | WO2012058894A1 Hyperboloidal limit baffle for swinging barrel type positive displacement pump |
| 05/10/2012 | WO2012058893A1 Swing barrel type positive displacement pump using cross shaft joint bearing |
| 05/10/2012 | US20120111185 Compact Eccentric Radial Piston Hydraulic Machine |
| 05/10/2012 | DE102010050738A1 Hydrostatic machine unit comprises hydrostatic machine having housing which is provided with housing wall, where active noise damping unit of active acoustic attenuation system is provided for active noise reduction in closed space |
| 05/10/2012 | DE102010043357A1 Roller shaft for e.g. common-rail of ship diesel engine fuel system, has roller rotatably mounted on roller pin and providing running surface for cam of camshaft, where roller pin is manufactured from bearing material |
| 05/09/2012 | EP2449262A1 Multi-piston pump |
| 05/09/2012 | EP2449261A1 High pressure pump |
| 05/09/2012 | CN102449349A Cam follower roller device, notably for a fuel injection pump |
| 05/09/2012 | CN102449310A Reciprocating compressor wrist pin bearing and lubrication passageway |
| 05/09/2012 | CN102449306A Light weight crankcase casting for compressor |
| 05/08/2012 | US8172800 Device and method employing shape memory alloy |
| 05/08/2012 | US8172552 Variable displacement compressor |
| 05/03/2012 | WO2012056392A1 Axial piston machines |
| 05/03/2012 | WO2012055629A1 Pump, in particular high-pressure fuel pump |
| 05/03/2012 | DE102011116962A1 Axial piston machine of swash plate construction, has sight glass that is inserted into receptacle in housing comprising pivoting cradle on which cylindrical drums are supported |
| 05/02/2012 | CN102439307A Return to neutral mechanism for hydraulic pump |
| 05/02/2012 | CN102439306A Fluid working machine with cylinders coupled to split exterior ports by electrohydraulic valves |
| 05/02/2012 | CN102434415A Low-noise axial plunger pump based on indexing angle of pumps in series |
| 05/02/2012 | CN101798999B Variable stroke plunger pump and starting method thereof |
| 05/01/2012 | US8167580 Axial piston machine with hydrostatic support of the holding-down device |
| 04/26/2012 | WO2012052225A1 Fuel pump for a fuel pump injection system of an internal combustion engine |
| 04/26/2012 | WO2012010261A3 Piston unit for a radial piston machine |
| 04/26/2012 | WO2012010241A3 Radial piston machine and piston for a radial piston machine of this type |
| 04/26/2012 | WO2012010137A3 Hydraulic dual axial piston machine |
| 04/26/2012 | WO2011104544A3 Variable displacement radial piston fluid working machine |
| 04/25/2012 | EP2444666A1 Oscillating displacement vacuum pump |
| 04/25/2012 | EP2444146A1 Method and apparatus for mixing liquids |
| 04/25/2012 | CN102428272A 用于可变排量泵的控制阀 A control valve for a variable displacement pump |
| 04/25/2012 | CN102425537A 一种隔膜泵 One kind of diaphragm pump |
| 04/25/2012 | CN102425533A 一种正弦流量发生装置 One kind of sinusoidal flow generating device |