| 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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| 11/06/2008 | US20080271969 Shaft coupling |
| 11/06/2008 | US20080271444 Return to neutral mechanism for hydraulic pump |
| 11/05/2008 | CN101300433A Modular backup fluid supply system |
| 11/04/2008 | US7446988 Fault condition protection |
| 11/04/2008 | US7444809 Hydraulic regeneration system |
| 11/04/2008 | US7444808 Hydraulic system |
| 10/30/2008 | US20080264054 Integrated hystat having single input and independent output |
| 10/30/2008 | US20080264053 hydraulic system and a method of operating a hydraulic pump |
| 10/29/2008 | EP1984642A2 Variable mode manipulator and drive system |
| 10/29/2008 | CN100429454C Dual check-relief valve |
| 10/28/2008 | US7441407 Hydraulic drive control device |
| 10/28/2008 | US7441406 Fluid circuit and industrial truck having a fluid circuit |
| 10/28/2008 | US7441405 Cylinder with internal pushrod |
| 10/28/2008 | US7441404 Configurable hydraulic control system |
| 10/23/2008 | US20080257677 Viscous friction clutch for driving a cooling fan in a motor vehicle |
| 10/23/2008 | US20080257142 Hydraulic Pressure Control Apparatus and Hydraulic Circuit |
| 10/23/2008 | US20080256943 Hydraulic control device |
| 10/23/2008 | US20080256942 Hydraulic system and automatic gearbox |
| 10/23/2008 | US20080256941 Hybrid hydraulic joystick with an integral pressure sensor and an outlet port |
| 10/21/2008 | US7438475 Bearing unit, and motor and electronic equipment, both equipped with the bearing unit |
| 10/21/2008 | US7437872 Object separating apparatus using gas |
| 10/16/2008 | US20080250783 Flow continuity for multiple hydraulic circuits and associated method |
| 10/16/2008 | US20080250781 Method of Controlling a Hydrostatic Drive |
| 10/14/2008 | US7434394 Hydraulic drive device |
| 10/14/2008 | US7434391 Excavator and a machine for material transfer |
| 10/09/2008 | WO2008045676A3 Hydraulic system for generating power and electricity |
| 10/09/2008 | US20080245067 Hydropneumatic pressure transmission device |
| 10/09/2008 | US20080245065 Control System for Hydraulic Construction Machine |
| 10/07/2008 | US7430860 Hydrostatic transmission circuit |
| 10/02/2008 | US20080236980 Coupling Device |
| 10/02/2008 | US20080236158 Hydraulic oil supply structure and vehicle drive apparatus provided with the same |
| 10/02/2008 | US20080236157 Engine Lag Down Suppressing Device of Construction Machinery |
| 10/02/2008 | US20080236155 Hydrostatic continuously variable transmission |
| 10/02/2008 | US20080236154 Hydraulic circuit for construction equipment |
| 10/02/2008 | US20080236153 Method for operating a multiple speed hydraulic motor |
| 09/25/2008 | US20080230343 Coupling |
| 09/23/2008 | US7426827 Suspension arrangement for a boom assembly mounted on an agricultural sprayer |
| 09/18/2008 | WO2008055147A3 System and method for pilot-operated high pressure valve |
| 09/18/2008 | US20080223631 Working Machine |
| 09/18/2008 | US20080223028 Pump Flow Control of Hydraulic Circuit and Associated Method |
| 09/17/2008 | CN101265952A A hydraulically operable coupling |
| 09/11/2008 | US20080217132 Viscous Fluid Coupling Device |
| 09/04/2008 | WO2008039411B1 Coiled tubing injector with a weight on bit circuit |
| 08/28/2008 | US20080202113 Tandem Pump Unit |
| 08/28/2008 | US20080202112 Method and system for feedback pressure control |
| 08/28/2008 | US20080202111 Load sense boost device |
| 08/28/2008 | US20080202109 Hydraulic Actuation Assembly |
| 08/26/2008 | US7416045 Dual hydraulic machine transmission |
| 08/26/2008 | US7415822 Load sense boost device |
| 08/26/2008 | US7415820 Hybrid powertrain with valve assembly for dual pumps |
| 08/21/2008 | WO2007098389A3 Variable mode manipulator and drive system |
| 08/19/2008 | US7413066 Hydraulically controlled torque coupling device |
| 08/19/2008 | US7412827 Multi-pump control system and method |
| 08/19/2008 | US7412826 Hydraulic system for work vehicle |
| 08/14/2008 | US20080190104 Actuators |
| 08/14/2008 | US20080190103 Hydrostatic Drive and Method of Braking a Hydrostatic Drive |
| 08/12/2008 | US7409826 Compact hydrostatic energy recuperation system and method of operation |
| 08/12/2008 | US7409825 Hydraulic system with a cylinder isolation valve |
| 08/07/2008 | US20080184703 Method for regulating a hydrostatic drive system |
| 08/05/2008 | US7406824 Hydrostatic transmission circuit with replenishing for a vehicle |
| 07/31/2008 | US20080179159 Self-actuating clutch |
| 07/31/2008 | US20080178587 Anti-Cavitation Manifold for Drive Coupled, Dual Motor Reversible Hydraulic Drive Winding And Unwinding Systems |
| 07/24/2008 | WO2008088376A1 Hydroelectric wave-energy conversion system |
| 07/24/2008 | US20080173514 External Control Type Fan-Coupling Device |
| 07/24/2008 | US20080173014 Hydraulic control device of construction machine |
| 07/24/2008 | US20080173013 Screw style hydraulic jack |
| 07/23/2008 | EP1945960A2 Clutch |
| 07/22/2008 | US7401466 Hydraulic drive, in particular for two-cylinder thick matter pumps |
| 07/22/2008 | US7401465 Dual pump dual pressure hydraulic circuit |
| 07/22/2008 | US7401464 Energy regeneration system for machines |
| 07/10/2008 | WO2007133569A3 Pressure shuttle |
| 07/10/2008 | US20080163618 Managed storage and use of generated energy |
| 07/09/2008 | CN100400918C Pump in improved structure |
| 07/08/2008 | US7395664 Hydraulic system for utility vehicles, in particular agricultural tractors |
| 07/08/2008 | US7395662 Hydraulic control arrangement |
| 07/03/2008 | WO2008045789A3 Hydraulic transmission assembly |
| 07/03/2008 | WO2007143021A3 A machine and system for power generation through movement of water |
| 07/03/2008 | US20080155980 Hydrostatic Stepless Transmission |
| 07/03/2008 | US20080155979 Hydrostatic Stepless Transmission |
| 07/03/2008 | US20080155978 Change-Speed Control System for Utility Vehicle Having Stepless Change-Speed Apparatus for Speed-Changing Engine Output and Transmitting the Speed-Changed Output to Traveling Unit |
| 07/03/2008 | US20080155977 Apparatus for easing impact on boom of excavator and method of controlling the same |
| 07/03/2008 | US20080155976 Hydraulic motor |
| 07/03/2008 | US20080155975 Hydraulic system with energy recovery |
| 07/03/2008 | US20080155974 Power Plant for a Motor Vehicle |
| 07/03/2008 | DE10319484B4 Hydrauliksteuersystem The hydraulic control system |
| 07/02/2008 | CN100398874C Hydraulically actuated by-pass valve and control method thereof |
| 07/01/2008 | US7392653 Hydraulic control system for working machine |
| 06/26/2008 | US20080150351 Device for Supplying Pressure to an Actuation Unit of a Motor Vehicle Braking System and Method for Controlling Said Device |
| 06/26/2008 | DE102007060256A1 Electrohydraulic clutch assembly for motor vehicle drive lines, has friction clutch pack disposed between input shaft and output shaft and actuated by secondary piston and has electric brake for rotor of motor |
| 06/25/2008 | CN100396211C Interchangeable grips for power hand tools |
| 06/24/2008 | US7389640 Hydraulic system and automatic transmission |
| 06/19/2008 | WO2008039411A3 Coiled tubing injector with a weight on bit circuit |
| 06/19/2008 | US20080141670 Drive Apparatus |
| 06/19/2008 | US20080141669 Device for increasing pressure in cylinders with control unit |
| 06/19/2008 | US20080141668 Electrohydraulic drawing press cushion drive |
| 06/12/2008 | US20080134674 Hydrostatic Drive with Rotational Speed Limitation |
| 06/11/2008 | CN100393566C Vehicular steering control device |
| 06/05/2008 | US20080128193 Fluid drive system |
| 06/03/2008 | US7380398 Hydraulic metering mode transitioning technique for a velocity based control system |
| 05/29/2008 | US20080120974 Integrated hydrostatic transmission for left and right wheel drive |