| Patents for F04B 1 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (10,723) |
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| 10/05/2004 | US6799953 Port plate for an axial piston pump |
| 09/30/2004 | WO2004083635A1 Pressure pin and axial piston machine having said pressure pin |
| 09/30/2004 | US20040191099 Reverse-ported pump |
| 09/30/2004 | US20040191091 Engine and pump assembly having combined housing |
| 09/30/2004 | US20040191075 Housing with multiple case drain ports for hydrostatic transmission pumps |
| 09/30/2004 | US20040187677 Compact eccentric-driven pump for a controlled braking system |
| 09/30/2004 | US20040187491 Pump with hot oil shuttle valve |
| 09/30/2004 | DE19804374B4 Axialkolbenmaschine mit Mitteldrucköffnung Axial piston machine with medium pressure opening |
| 09/29/2004 | EP1462647A2 Rotary cylinder fluid pressure machine |
| 09/29/2004 | EP1157210B1 Rotary power unit |
| 09/29/2004 | EP1060334B1 Radial piston pump for fuel high pressure generation |
| 09/29/2004 | EP1007845B1 Wobbling drive of an axial piston machine |
| 09/29/2004 | EP0979353B1 Supply pump for gasoline common rail |
| 09/29/2004 | CN1533478A Double acting simplex plunger with bi-directional valves |
| 09/28/2004 | US6796775 Fuel injection pump |
| 09/28/2004 | US6796774 Axial piston engine |
| 09/23/2004 | WO2004081380A2 High-efficiency, large angle, variable displacement hydraulic pump/motor |
| 09/23/2004 | DE10310123A1 Radialkolbenpumpe Radial piston pump |
| 09/23/2004 | CA2518605A1 High-efficiency, large angle, variable displacement hydraulic pump/motor |
| 09/21/2004 | US6793463 Tandem pump and interface for same |
| 09/21/2004 | CA2257625C Axial plunger slurry pump |
| 09/16/2004 | WO2004079190A1 Radial piston pump |
| 09/16/2004 | WO2004079189A1 Gasket |
| 09/16/2004 | US20040177752 Connecting element for connecting a piston to a restoring element |
| 09/16/2004 | DE10310183A1 Radial piston fluid pump has star array cylinders with eccentric mounting and common outlet for different pressure outlet valves |
| 09/16/2004 | DE10310124A1 Flachdichtung Flat seal |
| 09/15/2004 | EP1457679A2 Screw compressor capable of manually adjusting both internal volume ratio and capacity |
| 09/15/2004 | EP1457675A2 Axial piston pump driven by an electric motor |
| 09/15/2004 | EP1356208B1 Pump system comprising a hydraulic pump, particularly for a steering system |
| 09/15/2004 | CN1529793A Compressor with capacity modulation system utilizing re-expansion chamber |
| 09/12/2004 | CA2460945A1 Screw compressor capable of manually adjusting both internal volume ratio and capacity and combined screw compressor unit accommodating variation in suction or discharge pressure |
| 09/09/2004 | US20040175278 Pressure washer having oilless high pressure pump |
| 09/09/2004 | US20040175277 Hydrostatic pump assembly having symmetrical endcap |
| 09/09/2004 | US20040175275 Tandem pump unit |
| 09/09/2004 | US20040175268 Rotary kinetic tangential pump |
| 09/09/2004 | US20040173089 High-efficiency, large angle, variable displacement hydraulic pump/motor |
| 09/09/2004 | DE19527645B4 Axialkolbenmaschine in Taumelscheibenbauweise Axial piston swash plate design |
| 09/09/2004 | DE19527643B4 Axialkolbenmaschine in Taumelscheibenbauweise Axial piston swash plate design |
| 09/09/2004 | DE10346237A1 Kolbenpumpe Piston pump |
| 09/09/2004 | DE10308912A1 Engine structure for hydrostatic, slow running axial piston engine, includes cylinder block and control body such that cylinder block or control body can be constructed using non-ferrous metal such as bronze, brass |
| 09/08/2004 | EP1454055A1 Radial piston pump having force-feed lubrication |
| 09/08/2004 | CN2639553Y 轴向柱塞泵 Axial Piston Pump |
| 09/08/2004 | CN1527911A Clutch assembly with a gear pump |
| 09/02/2004 | WO2004074682A1 Reciprocating pump with an eccentric bearing that is devoid of play |
| 09/02/2004 | US20040168567 Long-piston hydraulic machines |
| 09/02/2004 | DE19920997B4 Radialkolbenpumpe Radial piston pump |
| 09/02/2004 | DE19626407B4 Radialkolbenpumpe mit druckentlastetem Schraubdeckel Radial piston pump with pressure screw |
| 09/02/2004 | DE19527646B4 Hydrostatische Axialkolbenmaschine in Taumelscheibenbauweise Hydrostatic axial piston swash plate design |
| 09/02/2004 | DE19507295B4 Radialkolbenpumpe, insbesondere Kraftstoffpumpe für einen Verbrennungsmotor Radial piston pump, particularly fuel pump for an internal combustion engine |
| 09/01/2004 | EP1452733A1 Swash plate axial piston pump |
| 08/31/2004 | US6783337 Check valve seal assembly |
| 08/31/2004 | US6783130 Seal mechanism and fuel pump provided therewith |
| 08/26/2004 | WO2004072478A1 Piston pump |
| 08/26/2004 | WO2004072477A1 High pressure pump |
| 08/26/2004 | US20040166002 Axial piston pump driven by an electric motor |
| 08/26/2004 | US20040165999 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 08/26/2004 | US20040165998 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 08/26/2004 | US20040165996 Swash plate for axial piston pump |
| 08/26/2004 | US20040165798 Eccentric bearing for a poppet drive system |
| 08/26/2004 | US20040164013 Pump for liquid chromatograph |
| 08/26/2004 | US20040163715 Non-return valve for a pump |
| 08/26/2004 | DE19650272B4 Axialkolbenpumpe Axial piston pump |
| 08/26/2004 | DE10305136A1 Hohlkolben für eine Kolbenmaschine und Verfahren zum Herstellen eines Hohlkolbens Hollow piston for a piston machine and method for manufacturing a hollow piston |
| 08/26/2004 | DE10195707T5 Hydraulischer Drucktransformator Hydraulic pressure transformer |
| 08/26/2004 | DE10120252B4 Pumpe mit veränderlichem Förderhub Pump with variable delivery stroke |
| 08/24/2004 | US6779990 Bearing mechanism and a pump |
| 08/24/2004 | US6779987 Pressure washer having oilless high pressure pump |
| 08/24/2004 | US6779986 Radial piston pump |
| 08/24/2004 | US6779433 Axial piston engine |
| 08/19/2004 | WO2004070205A1 Tubular piston for a piston engine and method for producing a tubular piston |
| 08/12/2004 | WO2003060321A8 Rotary radial piston machine |
| 08/12/2004 | US20040156733 High pressure feed pump |
| 08/12/2004 | US20040156731 Straight-cut motor shaft with pinned eccentric |
| 08/12/2004 | US20040156727 Variable displacement pump |
| 08/12/2004 | US20040154329 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 08/12/2004 | DE10354477A1 Sensor für eine Pumpe mit variabler Verdrängung Sensor for a variable displacement pump |
| 08/11/2004 | CN1161539C Reciprocating fluid machines |
| 08/10/2004 | US6772591 Pump unit |
| 08/05/2004 | WO2004065290A2 Integrated electrostatic peristaltic pump method and apparatus |
| 08/05/2004 | US20040151603 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 08/05/2004 | US20040151594 High pressure reciprocating pump and control of the same |
| 08/05/2004 | US20040148928 Rotary hydraulic machine |
| 08/05/2004 | DE4216703B4 Getriebeanordnung für ein Fahrzeug Transmission assembly for a vehicle |
| 08/05/2004 | DE10206728A1 Hohlkolben und Verfahren zu dessen Herstellung durch Diffusionsschweißen oder Sintern A hollow piston and a process for its preparation by diffusion bonding or sintering |
| 08/04/2004 | EP1443209A2 Water pump |
| 08/04/2004 | EP1442213A1 Intake valve for a high-pressure pump, in particular for internal combustion engine fuel |
| 08/04/2004 | EP0995036B1 Pump unit |
| 08/03/2004 | US6769413 Fuel injection pump |
| 08/03/2004 | US6769351 Radial piston pump |
| 07/29/2004 | WO2004063559A1 Fuel feed pump |
| 07/29/2004 | US20040144088 Expander |
| 07/29/2004 | DE10359939A1 Pumpe mit variabler Lieferung und fester Verdrängung Variable delivery pump and fixed displacement |
| 07/29/2004 | DE10307128B3 Piston pump for providing high pressure in hydraulic system e.g. automobile braking system or IC engine fuel injection system |
| 07/28/2004 | EP1440241A1 Variable stroke balancing |
| 07/28/2004 | EP1068449B1 Pump unit for a slip-regulated hydraulic automobile brake system |
| 07/28/2004 | CN2628747Y High-pressure water engine |
| 07/22/2004 | WO2004061303A1 Radial piston pump |
| 07/22/2004 | DE10300774A1 Radial piston pump has thrust bearing installed between end face of shaft journal and base, with outer race of radial bearing constructed as closed needle bush formed in non-cutting process with base |
| 07/22/2004 | DE10235813B4 Gleitschuh und Verfahren zum Herstellen von erhabenen Anlageflächen eines Gleitschuhs Shoe and method for manufacturing of raised contact surfaces of the sliding shoe |
| 07/22/2004 | DE10010945B4 Pumpe zur Versorgung eines Kraftstoffeinspritzsystems und einer hydraulischen Ventilsteuerung für Brennkraftmaschinen Pump for supplying a fuel injection system and a hydraulic control valve for internal combustion engines |