| Patents for F16D 31 - Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution (2,451) |
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| 09/14/2005 | CN1666917A Power steering system |
| 09/08/2005 | US20050193730 Hydraulic service module |
| 09/08/2005 | US20050193729 Trinity hydro-pneumatic power source |
| 09/08/2005 | US20050193728 Electrical energy from live loads |
| 09/08/2005 | US20050193727 Power steering system |
| 09/08/2005 | DE102004007050A1 Phase adjustment system for shaft concentric with chain drive wheel has hydraulic motor with vanes and eccentric rotor with drive pinion inside housing with sprocket teeth |
| 09/06/2005 | US6938415 Hydraulic/pneumatic apparatus |
| 09/01/2005 | WO2005079461A2 Vehicle system to recapture kinetic energy |
| 09/01/2005 | US20050189190 Electrohydraulic clutch assembly |
| 08/31/2005 | CN1661256A Electrohydraulic clutch assembly |
| 08/30/2005 | US6935454 Valve for a hydraulic drive apparatus |
| 08/30/2005 | US6935107 Three-way pneumatic commutator and volume booster |
| 08/25/2005 | US20050183417 Cooling system for work machine |
| 08/25/2005 | US20050183415 Stopping apparatus and method for oil pump |
| 08/23/2005 | US6931847 Flow sharing priority circuit for open circuit systems with several actuators per pump |
| 08/23/2005 | US6931846 Equalizing flow from pressure compensated pumps, with or without load sensing, in a multiple pump circuit |
| 08/18/2005 | US20050178636 Hydraulically controlled torque coupling device |
| 08/18/2005 | US20050178115 Vehicle system to recapture kinetic energy |
| 08/18/2005 | US20050178113 Self-winding generator |
| 08/18/2005 | DE102004004903A1 Antrieb zum Stellen eines Stellorgans, wie eines Ventils, und Einrichtung zum Regeln einer Stellbewegung Drive to Make an actuator, such as a valve, and means for controlling an actuating movement |
| 08/17/2005 | EP1564427A2 Hydraulically controlled torque coupling device |
| 08/11/2005 | US20050172797 Hydraulic system for synchronized extension of multiple cylinders |
| 08/11/2005 | US20050172796 Hydraulic system for synchronized extension of multiple cylinders |
| 08/11/2005 | US20050172794 Drive mechanism for the positioning of an actuator, such as a valve, and device for the control of an actuator |
| 08/11/2005 | US20050172621 Control valve supply for rotary hydraulic machine |
| 08/04/2005 | WO2005069847A2 Trinity hydro-pneumatic power source |
| 08/04/2005 | US20050166586 Engine control based on flow rate and pressure for hydraulic hybrid vehicle |
| 08/02/2005 | US6922992 Hydraulic drive circuit with flow divider and bypass valve |
| 08/02/2005 | US6922989 Plural pressure oil energies selective recovery apparatus and selective recovery method therefor |
| 07/28/2005 | WO2005068849A1 Pressurized hydraulic fluid system with remote charge pump |
| 07/28/2005 | US20050163405 Bearing unit, and motor and electronic equipment, both equipped with the bearing unit |
| 07/28/2005 | US20050160904 Anti-stall pilot pressure control system for open center systems |
| 07/28/2005 | US20050160729 Rotating fluid machine |
| 07/21/2005 | DE102004059121A1 Steuerungsvorrichtung für eine Fahrzeuglenkung Control device for a vehicle steering |
| 07/19/2005 | US6918247 Assisted hydraulic system for moving a structural member |
| 07/07/2005 | US20050144937 Grid construction to gathering of wave aggregates |
| 06/30/2005 | WO2005059331A2 Bearing system for high-speed rotating machinery |
| 06/23/2005 | US20050132703 Rotating fluid machine |
| 06/23/2005 | US20050132701 Pressurized hydraulic fluid system with remote charge pump |
| 06/23/2005 | US20050132700 Converting energy from flowing fluids into electrical energy |
| 06/23/2005 | US20050132699 Converting pressure energy from renewable energy sources into electrical energy |
| 06/16/2005 | US20050126165 Vehicular steering control device |
| 06/16/2005 | US20050126164 Piston and rod assembly and method |
| 06/15/2005 | CN1626392A Vehicular steering control device |
| 06/14/2005 | US6904748 Hydrostatic transmission with pressure regulation means |
| 06/02/2005 | US20050115234 Electro-hydraulic actuation system |
| 06/02/2005 | US20050115232 Three-way pneumatic commutator and volume booster |
| 05/26/2005 | US20050109027 Axle driving apparatus |
| 05/25/2005 | CN1619206A Dual check-relief valve |
| 05/19/2005 | US20050103004 Velocity intensifying power system |
| 05/18/2005 | CN1616839A Bearing unit, and motor and electronic device with said bearing unit |
| 05/12/2005 | US20050097887 Dual check-relief valve |
| 05/11/2005 | CN1201091C Loop flushing circuit for lubricating rotary element of static hydraulic driving unit |
| 05/10/2005 | CA2487461A1 Anti-stall pilot pressure control system for open center systems |
| 05/05/2005 | US20050091973 Method and apparatus for driving hydraulic motors with agricultural tractors |
| 05/05/2005 | US20050091972 Electrohydraulic actuator |
| 05/03/2005 | US6886315 Circuit for a transmission shaft rotation sensor |
| 04/19/2005 | US6880686 Transmission shaft rotation sensor |
| 04/19/2005 | US6880448 Pump and center section for hydrostatic transmission |
| 04/19/2005 | US6880333 Control assembly for a hydraulic device |
| 04/12/2005 | US6877593 Automatic transmission friction clutch |
| 04/07/2005 | WO2004088467A3 Method, apparatus, and article for force feedback based on tension control and tracking through cables |
| 03/10/2005 | US20050050886 Hydro-pneumatic spring support arrangement |
| 03/01/2005 | US6860106 Axle driving apparatus |
| 02/23/2005 | EP1508460A1 Hydropneumatic suspension |
| 02/03/2005 | US20050024331 Method, apparatus, and article for force feedback based on tension control and tracking through cables |
| 02/01/2005 | US6848254 Method and apparatus for controlling a hydraulic motor |
| 01/27/2005 | US20050016168 Hydraulic drive system and improved control valve assembly therefor |
| 01/27/2005 | US20050016167 Hydraulic drive system and improved filter sub-system therefor |
| 01/27/2005 | US20050016166 Hydraulic drive system and improved filter sub-system therefor |
| 01/27/2005 | US20050016165 Method of storing and transporting wind generated energy using a pipeline system |
| 12/30/2004 | US20040261407 Method and apparatus for controlling a hydraulic motor |
| 12/16/2004 | WO2004109172A2 A method of storing and transporting wind generated energy using a pipeline system |
| 12/16/2004 | US20040250537 Machine and system for power generation through movement of water |
| 12/16/2004 | CA2527623A1 A method of storing and transporting wind generated energy using a pipeline system |
| 12/07/2004 | US6826909 Hydraulic gerotor motor with integral shuttle valve |
| 11/18/2004 | US20040226295 Rotationally balanced hydraulic swash plate plunger unit, and hydraulic continuously variable transmission incorporating same |
| 11/18/2004 | US20040226294 Hydraulic continuously variable transmission |
| 11/10/2004 | EP1474606A1 Grid construction to gathering of wave aggregates |
| 11/02/2004 | US6810664 Slotted spool valve |
| 10/19/2004 | US6804958 Hydrostatic transmission bypass latch |
| 10/14/2004 | WO2004088467A2 Method, apparatus, and article for force feedback based on tension control and tracking through cables |
| 10/14/2004 | US20040200215 Bearing system for high-speed rotating machinery |
| 10/14/2004 | DE10315594A1 Camshaft adjustment device to change rotational position of camshaft in relation to crankshaft has driving power of camshaft directed from crankshaft via hydraulic transmission formed by pump unit and hydromotor unit |
| 10/07/2004 | US20040194460 Swash plate type servo device for a plunger hydraulic unit |
| 09/22/2004 | EP1354141B1 Hydraulic control valve system with pressure compensated flow control |
| 09/09/2004 | US20040172940 Hydrostatic transmission |
| 09/08/2004 | CN1527911A Clutch assembly with a gear pump |
| 09/02/2004 | WO2004074711A1 Torque-limiting coupling |
| 08/19/2004 | DE10305181A1 Torque-transmission unit for hydrostatic engines has a casing to rotate on bearings and pistons to oscillate in a cylinder and to maintain an active connection with the casing |
| 07/29/2004 | US20040146406 Hydraulic/pneumatic apparatus |
| 07/22/2004 | US20040139744 Hydrostatic transmission with pressure regulation means |
| 07/13/2004 | US6761182 Method for configuration of a valve |
| 07/01/2004 | US20040123596 Power unit for vehicle with internal combustion engine |
| 07/01/2004 | US20040123595 Axle driving apparatus |
| 06/30/2004 | CN1155771C Fittings for hydraulic operation and system with same |
| 05/20/2004 | US20040095694 Fault condition protection |
| 05/12/2004 | CN1496449A Hydraulic control valve system with pressure compensated flow control |
| 03/11/2004 | US20040046740 Position sensing methods for interface devices |
| 03/09/2004 | US6704002 Position sensing methods for interface devices |