| 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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| 02/12/2013 | US8371117 Torque control apparatus for construction machine three-pump system |
| 01/30/2013 | EP2550466A1 Variable speed hydraulic pump apparatus and method |
| 01/29/2013 | US8362629 Energy management system for heavy equipment |
| 01/29/2013 | US8359856 Systems and methods for efficient pumping of high-pressure fluids for energy storage and recovery |
| 01/29/2013 | US8359852 Hydraulic unit of a hydraulic vehicle brake system |
| 01/29/2013 | US8359849 Control of a fluid circuit using an estimated sensor value |
| 01/22/2013 | US8356477 Dual linear actuator |
| 01/17/2013 | WO2011159586A3 Advanced adiabatic compressed air energy storage system |
| 01/17/2013 | US20130014500 Drive Train of a Mobile Machine |
| 01/17/2013 | US20130014498 Variable Displacement Hydraulic Pump Control |
| 01/15/2013 | US8353157 Open center hydraulic system |
| 01/10/2013 | US20130009612 Energy extraction device with electrical generator and method of operating energy extraction device electrical generator |
| 01/10/2013 | DE112010004679T5 Hydraulikbehälter für hydraulische Regenerativschaltung Hydraulic reservoir for hydraulic regenerative circuit |
| 01/08/2013 | US8347620 Bypass/flushing valve for closed hydraulic circuit |
| 01/08/2013 | US8347619 System and method of controlling torque of plural variable displacement hydraulic pumps |
| 01/03/2013 | US20130000294 Transmission shifting with speed dither and torque dither |
| 01/03/2013 | US20130000292 Electronic high hydraulic pressure cutoff to improve system efficiency |
| 01/03/2013 | US20130000291 Hydraulic circuit having energy storage and reuse |
| 01/03/2013 | US20130000290 Energy recovery system having accumulator and variable relief |
| 01/01/2013 | US8341956 Hydraulic fluid supply device and electric actuator |
| 12/27/2012 | US20120324876 Subsea accumulator system |
| 12/27/2012 | US20120324874 Independent supply and exhaust metering within a valve casting |
| 12/25/2012 | US8336613 Back pressured hydraulic pump for sucker rod |
| 12/25/2012 | US8336232 Multi-function wheel loader linkage control with optimized power management |
| 12/20/2012 | US20120317969 Hydraulic pressure controller for continuously variable transmission |
| 12/20/2012 | US20120317968 Dump truck |
| 12/20/2012 | US20120317964 Hydrostatic Circuits with Variable Charge and Variable Flushing Systems |
| 12/13/2012 | US20120312006 Control system for hybrid construction machine |
| 12/13/2012 | US20120312004 Emission-free devices and method for performing mechanical work and for generating electrical and thermal energy |
| 12/12/2012 | CN102822552A System and methods for optimizing efficiency of a hydraulically actuated system |
| 12/11/2012 | US8327637 Hydraulic energy recovery system with dual-powered auxiliary hydraulics |
| 12/04/2012 | US8322997 Eccentric pump |
| 11/29/2012 | WO2012161601A1 Clutch |
| 11/28/2012 | CN202560876U Control system of hydro-viscous speed-adjusting clutch |
| 11/28/2012 | CN102797773A Safety clutch for hydraulic transmitting torque |
| 11/27/2012 | US8317007 Clutch device |
| 11/21/2012 | CN102792045A Hydraulic reservoir for hydraulic regenerative circuit |
| 11/20/2012 | US8312716 Hydraulic drive system |
| 11/15/2012 | US20120285158 Pressure limiting in hydraulic systems |
| 11/15/2012 | US20120285154 Efficiency of liquid heat exchange in compressed-gas energy storage systems |
| 11/15/2012 | US20120285153 Drive System for Electric Vehicles |
| 11/08/2012 | US20120279210 Transmission of a motor vehicle, having an input shaft and an output shaft |
| 11/06/2012 | US8302396 Control method for hydraulic type continuously variable transmission |
| 11/06/2012 | US8302395 Hydraulic system |
| 11/06/2012 | US8302394 Fluid pressure unit |
| 10/31/2012 | EP2516874A1 System and methods for optimizing efficiency of a hydraulically actuated system |
| 10/30/2012 | US8301276 Control device for the position control of a hydraulic cylinder unit comprising a linearization unit |
| 10/26/2012 | WO2012145401A1 Engine augmentation of hydraulic control system |
| 10/24/2012 | CN102753851A Hydrostatic torque converter and torque amplifier |
| 10/23/2012 | US8291702 Hydrostatic transmission |
| 10/23/2012 | US8291701 System for generating electrical power and potable water from sea waves |
| 10/18/2012 | US20120260647 Hydraulically operated setting device with a hydraulic aggregate and a joining method for connecting at least two components |
| 10/18/2012 | US20120260644 Engine augmentation of hydraulic control system |
| 10/16/2012 | US8286426 Digital hydraulic system |
| 10/11/2012 | WO2012138314A1 Hydroelectric control valve for remote locations |
| 10/11/2012 | US20120255294 Hydrostatic transmission apparatus making improved braking possible |
| 10/11/2012 | US20120255292 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| 10/09/2012 | US8281897 Automatic accumulator switching apparatus and system |
| 10/09/2012 | US8281583 Hydraulic control assembly |
| 10/09/2012 | US8281582 Method for supplying a fluid to a transmission component |
| 09/27/2012 | US20120240568 Multiple variable pedaling force energy summator |
| 09/26/2012 | EP2501950A2 Hydrostatic torque converter and torque amplifier |
| 09/26/2012 | CN102691734A 传动轴结构 Shaft structure |
| 09/25/2012 | US8272315 Dual pump |
| 09/25/2012 | US8272213 Hydraulic control device for vehicular hydraulic control circuit |
| 09/25/2012 | US8272212 Systems and methods for optimizing thermal efficiencey of a compressed air energy storage system |
| 09/25/2012 | US8272211 Tide operated energy system |
| 09/20/2012 | US20120233992 Wheel end with integrated motor assembly |
| 09/20/2012 | US20120233990 Method for operating a hydraulic drive device and method of operating the same |
| 09/18/2012 | US8266903 Engine lag down suppressing device of construction machinery |
| 09/18/2012 | US8266902 Valve module |
| 09/13/2012 | WO2012120094A2 A gerotor pump, a gerotor motor and a gerotor transmission system |
| 09/13/2012 | US20120227392 System and method for storing, disseminating, and utilizing energy in the form of gas compression and expansion including thermo-dynamic battery |
| 09/12/2012 | EP2497950A1 Georotor pump with capacity control valve provided rotatable within the shaft. |
| 09/11/2012 | US8262063 Tool with hydraulic valve system |
| 09/11/2012 | US8261545 Electric power actuator and control method for such an actuator |
| 09/11/2012 | US8261544 Control system and method for braking a hydrostatic drive machine |
| 09/05/2012 | CN102655914A System and method for supervised home care rehabilitation of stroke survivors |
| 08/30/2012 | US20120216521 Methods of controllling hydraulic motors |
| 08/30/2012 | US20120216519 Hydraulic control system having cylinder flow correction |
| 08/28/2012 | US8255115 Method for controlling external control type fan coupling device |
| 08/28/2012 | US8250862 Vehicle |
| 08/28/2012 | US8250861 Energy storage system including pressurized reservoir |
| 08/21/2012 | US8245508 Improving efficiency of liquid heat exchange in compressed-gas energy storage systems |
| 08/21/2012 | US8245507 Hydraulic control device |
| 08/16/2012 | US20120206842 Fault condition protection |
| 08/16/2012 | US20120204548 Cold Start Valve |
| 08/15/2012 | EP2486278A1 Return to neutral mechanism for hydraulic pump |
| 08/14/2012 | US8240144 Method for controlling a hydraulic machine in a control system |
| 08/14/2012 | US8240142 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| 08/14/2012 | US8240140 High-efficiency energy-conversion based on fluid expansion and compression |
| 08/09/2012 | US20120198829 Energy management system using hydraulic compensator for the production of electricity from one or several networks of cynetic energy sources |
| 08/07/2012 | US8235195 Engine clutch and method of using same |
| 08/07/2012 | US8234862 Systems and methods for combined thermal and compressed gas energy conversion systems |
| 08/07/2012 | US8234860 Machine control system having hydraulic warmup procedure |
| 07/31/2012 | US8230771 Hydraulic arrangement |
| 07/24/2012 | US8225607 Vane-cell machine and method for waste heat utilization, using vane-cell machines |
| 07/24/2012 | US8225606 Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression |
| 07/19/2012 | US20120180473 Hydrodynamic torque converter having a vibration absorber and torsional vibration damper |
| 07/17/2012 | US8224495 Control of power generation system having thermal energy and thermodynamic engine components |