| Patents for F04B 1 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (10,723) |
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| 04/02/2003 | EP0922161B1 High-pressure cleaning device |
| 04/02/2003 | CN1407256A Tilted variable axial piston device |
| 04/01/2003 | US6540487 Cavitation control and anti-cavitation elements, especially in rotary pressure exchangers; reverse osmosis of sea water |
| 03/27/2003 | WO2003025441A1 Non-return valve for a pump |
| 03/27/2003 | WO2002014677A9 Fuel tank mounted, motorized high pressure gasoline pump |
| 03/27/2003 | US20030059321 Tappet turning-prevention structure for fuel supply apparatus |
| 03/27/2003 | US20030059314 Multi-piston engine, such as a pump or compressor, with improved vibrational behaviour |
| 03/27/2003 | US20030056765 High pressure fuel supply apparatus |
| 03/26/2003 | EP1090229B1 Device for adjusting hydraulic equipment |
| 03/26/2003 | EP1090227B1 Eccentric system |
| 03/26/2003 | EP0794851B1 Motor driven hydraulic tool |
| 03/26/2003 | CN2541624Y 柱塞泵 Piston |
| 03/25/2003 | US6537040 Radial piston pump |
| 03/25/2003 | US6536212 Operation mechanism of a variable displacement hydraulic pump |
| 03/20/2003 | WO2003023221A1 Hybrid control method for fuel pump using intermittent recirculation at low and high engine speeds |
| 03/20/2003 | US20030053920 Piston pump |
| 03/20/2003 | DE19934218C2 Verfahren zum Herstellen einer Kugelgelenkverbindung zwischen einem Gleitschuh und einem Kolben und Axialkolbenmaschine mit einer Kugelgelenkverbindung A method of manufacturing a ball-joint connection between a sliding block and a piston, and axial piston machine having a ball joint connection |
| 03/19/2003 | EP1293672A1 Reverse-running pump |
| 03/19/2003 | EP1293668A2 Axial piston pump with rocker cam counterbalance feed |
| 03/19/2003 | EP1293667A1 Radial piston pump |
| 03/19/2003 | EP1293663A2 Pump unit and fluid supplying system |
| 03/19/2003 | EP1292768A1 Axial piston engine |
| 03/19/2003 | CN1403711A Variable desplacement pump |
| 03/18/2003 | US6532859 Compressor, in particular for a vehicle air conditioning system |
| 03/13/2003 | US20030047993 Hydraulic pump unit for vehicle brake control system |
| 03/13/2003 | US20030047066 Axial piston pump with rocker cam counterbalance feed |
| 03/13/2003 | US20030046930 Arrangement structure of swash plate hydraulic pump hydraulic pump |
| 03/12/2003 | CA2391544A1 Axial piston pump with rocker cam counterbalance feed |
| 03/11/2003 | US6530417 Cam device for removing and tilting the front plate in a vertical mold casting machine |
| 03/05/2003 | EP1288495A2 Hollow piston for a piston engine |
| 03/05/2003 | EP1287979A1 Ram moving method for hydraulic machine, ram movement controller, method for preventing trapping of axial plunger pump used for the machine, and the pump |
| 03/05/2003 | EP1287944A2 Method of manufacturing a hollow piston for a piston engine |
| 03/05/2003 | EP1287232A1 Axial piston engine |
| 03/05/2003 | EP1090226B1 Dual pump unit |
| 03/05/2003 | EP0840856B1 Pistom pump |
| 03/05/2003 | CN1102699C Variable conpacitance compressor |
| 03/04/2003 | US6527524 Double acting simplex plunger pump with bi-directional valves |
| 03/04/2003 | US6526748 Control device for hydraulic pump |
| 02/27/2003 | WO2002057629A3 Fluid pumping apparatus |
| 02/26/2003 | EP1285164A2 Pump assembly and method |
| 02/26/2003 | EP1047876B1 Radial piston pump for high pressure fuel supply |
| 02/26/2003 | EP0935712B1 Piston pump |
| 02/25/2003 | US6524076 Variable displacement pump including a control valve |
| 02/25/2003 | US6523524 Radial piston pump |
| 02/20/2003 | WO2003014569A1 High pressure feed pump |
| 02/20/2003 | WO2002101242A3 Compressor with a capacity modulation system utilizing a re-expansion chamber |
| 02/20/2003 | US20030033969 Marine steering system having dual hydraulic and electronic output |
| 02/20/2003 | US20030033803 Tandem pump unit |
| 02/19/2003 | EP1283959A2 Roller bearing, piston pump and pump unit |
| 02/18/2003 | US6520066 Adjusting means for an axial piston machine of inclined-axis construction |
| 02/13/2003 | WO2003012289A1 Axial piston motor |
| 02/13/2003 | WO2003012258A1 Rotary cylinder device |
| 02/13/2003 | US20030031568 Radial piston pump for producing high fuel pressure, as well as method for operating an internal combustion engine, computer program, and control and/or regulating unit |
| 02/12/2003 | EP1283366A2 Radial piston pump and control method therefor |
| 02/12/2003 | CN1101523C Plunger pump |
| 02/11/2003 | US6517331 Oil inlet for a wobble plate pump |
| 02/11/2003 | US6517325 Air compressor and method of operating the same |
| 02/11/2003 | US6517322 Hydrostatic variable displacement pump having a compact housing to facilitate swash plate installation |
| 02/11/2003 | US6516784 Pressure accumulating distribution type fuel injection pump |
| 02/06/2003 | US20030027677 Axle driving apparatus |
| 02/06/2003 | US20030024240 Control device for a proportionally adjustable hydraulic pump and a variable displacement pump for a hydrostatic drive |
| 02/05/2003 | CN1395509A Variable volume positive displacement dispensing system and method |
| 02/04/2003 | US6514569 Simple, reliable, less expensive computer controlled metering of liquid or paste on such as printed circuit boards and integrated circuit chips |
| 02/04/2003 | US6514056 Piston pump |
| 02/04/2003 | US6514055 Piston pump having a hollow piston |
| 02/04/2003 | US6514050 High pressure seal means for a radial piston pump |
| 02/04/2003 | CA2084299C Valve porting for rotating barrel ram pump |
| 01/30/2003 | US20030021709 Plunger pump device |
| 01/30/2003 | US20030021702 Swash plate pump with low stress housing |
| 01/29/2003 | EP1279830A1 Swash plate pump |
| 01/29/2003 | EP1278960A1 Hydrostatic machine |
| 01/29/2003 | EP1278959A2 Method for producing a ball-and-socket joint between a slipper and a piston, and a ball-and-socket joint of this type |
| 01/29/2003 | CN2533289Y 高压清洗泵 High pressure cleaning pump |
| 01/29/2003 | CN2533288Y Low-noise hydraulic plunger pump with energy accumulator |
| 01/29/2003 | CN1394273A Hydraulic hybrid vehicle |
| 01/28/2003 | US6511306 Zero leakage valveless positive fluid displacement device |
| 01/28/2003 | US6511304 Radial plunger machine |
| 01/28/2003 | US6510843 Valve system for controlling the fuel intake pressure in a high-pressure pump |
| 01/28/2003 | US6510779 Electronic bore pressure optimization mechanism |
| 01/23/2003 | WO2003006827A1 Rotary fluid energy converter |
| 01/23/2003 | US20030017060 Fluid pumping apparatus |
| 01/23/2003 | US20030017057 Pump unit and fluid supplying system |
| 01/23/2003 | DE10138554C1 Control device for proportionally adjustable hydraulic pump of closed hydraulic circuit includes valve configuration with valve for each swivel direction of piston and a mechanical touch |
| 01/22/2003 | EP1277955A2 High-pressure plunger pump |
| 01/22/2003 | EP1277950A1 High-pressure pump |
| 01/22/2003 | EP1277949A1 High-pressure pump and assembly structure of high-pressure pump |
| 01/22/2003 | EP1276991A2 Method for reducing noise and cavitation in machines and pressure exchangers which pressurize or depressurize fluids by means of the displacement principle |
| 01/22/2003 | EP1276970A1 Piston assembly for a radial piston hydraulic motor |
| 01/22/2003 | EP1121531B1 Radial piston pump for supplying fuel at high pressure |
| 01/22/2003 | EP1121530B1 Piston pump for supplying fuel at high pressure |
| 01/21/2003 | US6510366 Apparatus and method for customizing cosmetic products |
| 01/16/2003 | WO2003004872A1 Piston pump |
| 01/16/2003 | US20030012670 Pump and pump piston assembly |
| 01/16/2003 | US20030012660 Fuel injection pump |
| 01/16/2003 | US20030010319 Fuel injection device |
| 01/16/2003 | US20030010199 Swashplate arrangement for an axial piston pump |
| 01/16/2003 | US20030010195 Axial piston engine |
| 01/15/2003 | EP1275848A1 Fuel pump for a fuel system of an internal combustion engine |
| 01/15/2003 | EP1275845A2 High pressure fuel pump |
| 01/15/2003 | EP0927305B1 Piston pump |