| 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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| 04/21/2009 | US7520130 Hydraulic pressure control device of construction machine |
| 04/21/2009 | US7520129 Subsea pressure accumulator systems |
| 04/16/2009 | US20090094974 Fuel feed circuit for an aircraft engine |
| 04/16/2009 | US20090094972 Hydraulic control assembly |
| 04/16/2009 | US20090094971 System and apparatus to synchronize a plurality of hydraulically actuated components |
| 04/14/2009 | US7516615 Pump |
| 04/14/2009 | US7516614 Hydraulic arrangement |
| 04/09/2009 | US20090090592 High-Frequency Anti-Lock Clutch System and Method |
| 04/08/2009 | EP2044462A2 Flow deflection devices and method for energy capture machines |
| 04/07/2009 | US7513113 System and method for electronic actuation of axle driving apparatus |
| 04/07/2009 | US7513112 Reservoir built-in type actuator |
| 04/07/2009 | US7513110 Control apparatus of construction machine and method for calculating input torque |
| 04/07/2009 | US7513109 Hydraulic controller for working machine |
| 04/02/2009 | US20090084103 Hydraulic balancing for steering management |
| 04/02/2009 | US20090084101 Apparatuses for Converting Pressure Differences of Gaseous or Liquid Media Into Rotary Motion |
| 03/26/2009 | US20090077959 Orbital transmission with geared overdrive |
| 03/24/2009 | US7506717 Hydraulically driven vehicle |
| 03/24/2009 | US7506507 Arrangement and a method for controlling a work vehicle |
| 03/24/2009 | US7506506 Multi-purpose hydraulic system |
| 03/19/2009 | WO2008010200A3 Flow deflection devices and method for energy capture machines |
| 03/18/2009 | CN201209638Y Pressure clutch |
| 03/17/2009 | US7503173 Control devices for swashplate type variable displacement piston pump |
| 03/12/2009 | US20090064675 Flushing system having a single charge relief valve |
| 03/12/2009 | US20090064674 Accumulator |
| 03/11/2009 | CN201206623Y Operation oil way for marine gear box |
| 03/10/2009 | US7500362 Axle driving apparatus |
| 03/10/2009 | US7500361 Hydraulic pump unit and working vehicle |
| 03/05/2009 | US20090057049 Hydraulic traveling vehicle |
| 03/05/2009 | US20090057045 Hydraulic system to deter lift arm chatter |
| 03/03/2009 | US7497081 Hydraulic fluid supply structure |
| 03/03/2009 | US7497080 Hydraulic controlling device of working machine |
| 02/26/2009 | WO2006014337A4 Forestry machine with hydraulic system and method for rotor braking |
| 02/26/2009 | US20090055061 Power set for vehicles |
| 02/24/2009 | US7493758 Axle driving apparatus |
| 02/24/2009 | US7493757 Hydraulic pressure supply unit |
| 02/19/2009 | WO2009021584A1 Manual transmission |
| 02/19/2009 | US20090044528 Pump control apparatus for construction machine |
| 02/19/2009 | US20090044527 Hydraulic control system |
| 02/18/2009 | EP2024655A2 A machine and system for power generation through movement of water |
| 02/18/2009 | CN100462584C Coupling |
| 02/12/2009 | US20090038304 Hydraulic Isolating Manifold |
| 02/10/2009 | US7487636 Hydraulic drive apparatus |
| 02/04/2009 | CN100458391C Hydraulic machine, system for monitoring health of hydraulic machine, and method thereof |
| 02/03/2009 | US7485979 Method and system for controlling power generator having hydraulic motor drive |
| 02/03/2009 | US7484814 Hydraulic system with engine anti-stall control |
| 01/29/2009 | US20090025378 Hydraulic Actuator Control System for Refuse Collection Vehicle |
| 01/28/2009 | CN201187536Y Automobile clutch |
| 01/27/2009 | US7481053 Hydraulic pressurizer system |
| 01/27/2009 | US7481052 Fluid circuit with multiple flows from a series valve |
| 01/20/2009 | US7478531 Hydraulic circuit for heavy construction equipment |
| 01/20/2009 | US7478530 Hydraulic circuit for working machine |
| 01/13/2009 | US7475537 Maintaining the position of an electro-hydraulic servo valve controlled device upon loss of position command |
| 01/08/2009 | WO2009004623A2 Self-contained hydraulic actuator system |
| 01/08/2009 | WO2006014337A3 Forestry machine with hydraulic system and method for rotor braking |
| 01/08/2009 | DE102007031297A1 Synchronizing device for shifting gear wheels in manual gearbox, has idler gear rotatably connected with pump housing or displacement element, and shaft rotatably connected with displacement element or pump housing |
| 01/06/2009 | US7473207 Transmission shaft rotation sensor switch |
| 01/01/2009 | US20090000897 Hydraulic control for a dual clutch transmission |
| 01/01/2009 | US20090000290 Energy recovery system |
| 12/30/2008 | US7469537 Hydraulic transaxle and hydraulically driven vehicle |
| 12/30/2008 | US7469536 Series-parallel hydrostatic transmission |
| 12/30/2008 | US7469535 Hydraulic driving control device and hydraulic shovel with the control device |
| 12/23/2008 | US7467516 Axle driving apparatus |
| 12/18/2008 | US20080310988 Vane Pump |
| 12/18/2008 | US20080307783 Load sense boost device |
| 12/17/2008 | EP2002139A2 Petroleum to pneumatic engine conversion zero emission&fuel cost |
| 12/16/2008 | US7464545 Hydraulic system and work machine comprising such a system |
| 12/16/2008 | US7464544 Pressure device |
| 12/11/2008 | WO2008150440A1 Integrated compressor/expansion engine |
| 12/11/2008 | WO2008148512A1 Torque transmission device |
| 12/11/2008 | US20080304187 Fault condition protection |
| 12/11/2008 | US20080302097 Hydraulic Unit |
| 12/11/2008 | US20080302096 Drive Assembly for a Reciprocating Pump Utilizing a Linear Actuator |
| 12/11/2008 | DE102007026141A1 Drehmomentübertragungseinrichtung Torque transfer device |
| 12/10/2008 | CN100441896C Electrohydraulic clutch assembly |
| 12/10/2008 | CN100441863C Two-stage pressure relief valve |
| 12/09/2008 | US7461626 Powertrain including a rotary IC engine and a continuously variable planetary gear unit |
| 12/04/2008 | US20080295508 Force feedback poppet valve having an integrated pressure compensator |
| 12/04/2008 | US20080295506 Vehicle behavior control apparatus |
| 12/02/2008 | US7458311 Return to neutral for dual hydrostatic transmission |
| 12/02/2008 | US7458212 Back-pressure valve and actuation system |
| 12/02/2008 | US7458211 Hydraulic control system for heavy construction equipment |
| 11/27/2008 | WO2008144177A1 Torque transfer device with hydrostatic torque control system |
| 11/27/2008 | US20080289327 Linear Drive |
| 11/27/2008 | US20080289326 Pump Unit |
| 11/26/2008 | CN100436889C HST driving circuit |
| 11/25/2008 | US7454906 Hydraulic control system |
| 11/25/2008 | US7454904 Laying apparatus for cables, lines, conductors or suchlike, and relative laying method |
| 11/25/2008 | US7454903 Air servo cylinder |
| 11/20/2008 | US20080287251 Power Transmission Device |
| 11/20/2008 | US20080284168 Pulsed energy transfer |
| 11/20/2008 | US20080282692 Hydraulic Controller Arrangement |
| 11/18/2008 | US7451686 Fluid system with signal-mimicking device and associated method |
| 11/13/2008 | US20080276609 Dual hydraulic machine transmission |
| 11/13/2008 | US20080276608 Hydraulic drive system with temperature compensation for pressure limit |
| 11/13/2008 | US20080276607 Hydraulic drive system with precharge logic |
| 11/12/2008 | CN100432470C Integrated valve system |
| 11/11/2008 | US7448209 Axle driving apparatus |
| 11/11/2008 | US7448208 Hydraulic arrangement for a lifting arm pivotably mounted on a vehicle |
| 11/06/2008 | WO2008092137A3 Methods and apparatus for advanced windmill design |
| 11/06/2008 | WO2008092136A3 Methods and apparatus for advanced wind energy capture system |