| 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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| 02/26/2004 | US20040037710 Fluid machine |
| 02/26/2004 | US20040035103 Plural pressure oil energies selective recovery apparatus and selective recovery method therefor |
| 02/17/2004 | US6691512 Hydraulic transmission with combination check valve and pressure release valve |
| 02/12/2004 | DE10235660A1 Coupling or transmission unit has driving power from drive shaft variably distributed to driven shaft and third shaft, and power distribution is established by current operating state of hydraulic unit connected to third shaft |
| 02/03/2004 | US6687101 Fault condition protection |
| 01/29/2004 | DE10319484A1 Hydrauliksteuersystem The hydraulic control system |
| 01/27/2004 | US6681570 Hydrostatic transmission with pressure regulation means |
| 01/22/2004 | US20040011195 Operation mechanism of a variable displacement hydraulic pump |
| 01/13/2004 | US6675696 Pump and center section for hydrostatic transmission |
| 01/07/2004 | EP1377757A1 Clutch assembly with a gear pump |
| 01/01/2004 | US20040000142 High-pressure and low-pressure selecting valve and swash-plate type hydraulic motor system |
| 01/01/2004 | US20040000141 Hydraulic energy recovering/regenerating apparatus |
| 12/18/2003 | WO2003040565A3 Continuous-flow pump and stepless speed change drive |
| 12/16/2003 | US6662558 Variable delivery control arrangement for a pump |
| 12/02/2003 | US6655136 System and method for accumulating hydraulic fluid |
| 11/25/2003 | US6651794 Hydro-mechanical combiner |
| 11/25/2003 | US6651544 Controlling the deadband of a fluid system |
| 11/25/2003 | US6651427 Hydrostatic transmission bypass latch |
| 11/06/2003 | US20030205046 Axle driving apparatus |
| 11/05/2003 | CN1126881C Static-pressure controlled clutch |
| 10/30/2003 | US20030200747 Hydraulic control system |
| 10/29/2003 | EP1163453B1 Hydraulic control arrangement for operating a winch with easing, hoisting and mooring modes |
| 10/22/2003 | EP1354141A2 Hydraulic control valve system with pressure compensated flow control |
| 10/02/2003 | US20030183470 Automatic transmission friction clutch |
| 09/30/2003 | US6625983 Hydraulic power system |
| 09/17/2003 | CN1443286A Rotational control apparatus |
| 09/02/2003 | US6612222 Hydrostatic continuously variable transmission |
| 08/26/2003 | US6609368 Automatic downshift and override control for a transmission |
| 08/07/2003 | WO2002012732A3 Hydraulic control valve system with pressure compensated flow control |
| 07/31/2003 | WO2003062634A1 Grid construction to gathering of wave aggregates |
| 07/08/2003 | US6588207 Step-less, hydraulic power transmission |
| 07/03/2003 | US20030121258 Hydraulic control system for reducing motor cavitation |
| 07/03/2003 | US20030121257 Controlling the deadband of a fluid system |
| 07/02/2003 | EP1322877A1 Automatic transmission friction clutch |
| 06/26/2003 | US20030115867 Hydrostatic transmission |
| 06/26/2003 | US20030115863 System and method for accumulating hydraulic fluid |
| 06/24/2003 | US6581742 Fluid clutch |
| 06/24/2003 | US6581741 Axial setting device |
| 06/18/2003 | EP1319855A1 Fluid clutch |
| 06/12/2003 | US20030106764 Hydro-mechanical combiner |
| 06/12/2003 | US20030106760 Fluid clutch |
| 06/10/2003 | US6575282 Yaw damper for a two wheel drive motor vehicle |
| 06/10/2003 | US6575281 Coupling device |
| 06/05/2003 | WO2003046380A1 Axial piston pump/motor with clutch and through shaft |
| 06/05/2003 | US20030103850 Axial piston pump/motor with clutch and through shaft |
| 06/05/2003 | US20030101720 Hydraulic gerotor motor with integral shuttle valve |
| 06/03/2003 | US6571553 Hydraulic control arrangement for operating a winch with easing, hoisting and mooring modes |
| 05/15/2003 | WO2003040565A2 Continuous-flow pump and stepless speed change drive |
| 05/13/2003 | US6560962 Control system of a hydraulic construction machine |
| 05/01/2003 | US20030079470 Hydrostatic transmission |
| 04/22/2003 | US6550244 Axle driving apparatus having an improved hydraulic fluid bypass mechanism |
| 03/27/2003 | US20030057049 Yaw damper for a two wheel drive motor vehicle |
| 03/26/2003 | EP0794851B1 Motor driven hydraulic tool |
| 03/20/2003 | US20030051470 Control system for hydraulic equipment attachments |
| 03/13/2003 | US20030046930 Arrangement structure of swash plate hydraulic pump hydraulic pump |
| 03/12/2003 | EP0865582B1 A coupling device |
| 01/23/2003 | US20030017904 Coupling device |
| 01/21/2003 | US6508059 Hydrostatic transmission |
| 01/09/2003 | US20030005691 Controller for construction equipment |
| 01/02/2003 | EP1075612B1 Hydraulic torque transmitting device |
| 12/11/2002 | EP1265010A2 Control of hydrostatic gearing |
| 12/07/2002 | CA2381918A1 Control system for hydrostatic transmission |
| 12/05/2002 | US20020181179 Fault condition protection |
| 12/05/2002 | US20020178721 Automatic downshift and override control for a transmission |
| 12/05/2002 | US20020178720 High pressure hydrualic system within a single housing |
| 12/05/2002 | DE10210584A1 Hochdruckhydrauliksystem in einem einzigen Gehäuse High-pressure hydraulic system in a single housing |
| 12/04/2002 | CA2382620A1 Automatic downshift and override control for a transmission |
| 11/19/2002 | US6481203 Electric shifting of a variable speed transmission |
| 11/12/2002 | US6477837 Method for operating hydraulic drive apparatus |
| 11/12/2002 | US6477835 Single-motor injection-and-screw drive hybrid actuator |
| 10/10/2002 | WO2002079662A1 Clutch assembly with a gear pump |
| 09/24/2002 | US6456475 Off-line converter with digital control |
| 09/24/2002 | US6454070 Drain mechanism for hydraulic power transmission joint |
| 09/19/2002 | US20020129601 Hydraulic power system |
| 08/29/2002 | WO2002066862A1 Fluid controlled continuously variable transmission |
| 08/21/2002 | EP1013953A4 Machine for producing kinetic energy |
| 08/08/2002 | US20020104313 Hydraulic transformer using a pair of variable displacement gear pumps |
| 08/08/2002 | DE10164330A1 Hydraulikwandler, der ein Paar von Zahnradpumpen mit variabler Verdrängung verwendet Hydraulic converter which uses a pair of gear pumps with variable displacement |
| 08/06/2002 | US6428285 Hydraulic delivery device |
| 07/25/2002 | US20020095933 Hydrostatic transmission with pressure regulation means |
| 07/23/2002 | US6422368 Hydraulic power transmission joint |
| 06/04/2002 | US6398531 Pump drive system |
| 05/10/2002 | WO2002036964A1 Fluid machine |
| 05/09/2002 | US20020053204 Method for operating hydraulic drive apparatus |
| 05/07/2002 | US6382380 Hydraulic power transmission joint |
| 05/07/2002 | US6381957 Vehicle transmission |
| 05/02/2002 | WO2002035110A1 Vehicular clutch of pumping type |
| 05/02/2002 | US20020050435 Fluid clutch |
| 05/02/2002 | EP1201953A2 Fluid clutch |
| 05/01/2002 | CN1083941C 热回收装置 Heat recovery |
| 04/30/2002 | US6381529 Control system for hydrostatic transmission |
| 04/23/2002 | US6374605 Hydrostatic transmission control with pressure feedback |
| 04/23/2002 | US6374604 Hydrostatic transmission bypass latch |
| 04/17/2002 | EP1197662A2 System and method for recovering energy from an air compressor |
| 04/16/2002 | US6370876 Axle driving apparatus having an improved hydraulic fluid bypass mechanism |
| 04/11/2002 | WO2002029285A1 Automatic transmission friction clutch |
| 04/11/2002 | CA2424321A1 Automatic transmission friction clutch |
| 04/03/2002 | EP0966626A4 Hydraulic coupling having supplemental actuation |
| 03/26/2002 | US6360535 System and method for recovering energy from an air compressor |
| 03/14/2002 | US20020030957 Off-line converter with digital control |