| 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) |
|---|
| 07/17/2012 | US8220380 Hydraulic unit |
| 07/17/2012 | US8220257 Axle driving apparatus for a zero turn radius vehicle |
| 07/17/2012 | US8220256 Hydrostatic drive with braking energy recovery |
| 07/12/2012 | US20120174570 Transmission hydraulic control system having flow augmentation |
| 07/11/2012 | CN102575731A Variable speed hydraulic pump apparatus and method |
| 07/10/2012 | US8215111 Electrical generation from explosives |
| 07/10/2012 | US8215108 Control apparatus and control method for a piston/cylinder arrangement |
| 07/10/2012 | US8215106 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| 07/10/2012 | US8215105 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| 07/10/2012 | US8215104 Energy from subterranean reservoir fluid |
| 07/03/2012 | US8209975 Arrangement for operating a hydraulic device |
| 07/03/2012 | US8209973 Wave responsive electrical generator |
| 06/28/2012 | US20120159939 Electric pump |
| 06/26/2012 | US8207708 Power generation control method of hybrid construction machine and hybrid construction machine |
| 06/26/2012 | US8206264 Speed control structure and method for work vehicle |
| 06/21/2012 | US20120151910 Variable pressure control system for dual acting actuators |
| 06/21/2012 | US20120151909 Load sensing hydraulic system |
| 06/21/2012 | US20120151905 Control Apparatus and Method for a Hydrostatically Actuated Vehicle |
| 06/21/2012 | US20120151904 Hydraulic control system having energy recovery |
| 06/19/2012 | US8204655 Construction machine |
| 06/19/2012 | US8201407 Drive unit with an internal combustion engine and a reciprocating piston engine which is self-starting without regulation |
| 06/19/2012 | US8201403 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| 06/19/2012 | US8201402 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| 06/14/2012 | US20120144820 Supplementary boosting for hydrostatic transmission circuit |
| 06/14/2012 | US20120144815 High efficiency infinitely variable fluid power transformer |
| 06/13/2012 | EP2461873A2 System and method for supervised home care rehabilitation of stroke survivors |
| 06/12/2012 | US8196399 Hydraulic pump and motor module for use in a vehicle |
| 06/12/2012 | US8196395 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| 06/07/2012 | US20120138409 Liquid friction clutch |
| 06/07/2012 | US20120137667 Regenerative Hydraulic Pump |
| 06/05/2012 | US8192175 Method of controlling a cyclically commutated hydraulic pump |
| 06/05/2012 | US8191363 Hydraulic actuator control system for refuse collection vehicle |
| 06/05/2012 | US8191361 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| 06/05/2012 | US8191360 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| 05/31/2012 | US20120131913 Hydraulic swing-controlling apparatus of work machine |
| 05/31/2012 | US20120131912 Aircraft actuator hydraulic system |
| 05/29/2012 | US8186155 Hydraulic energy storage system with accumulator and method of varying charge of same |
| 05/29/2012 | US8186154 Rotary flow control valve with energy recovery |
| 05/24/2012 | US20120124991 Method and apparatus for lever stroke adjustment |
| 05/22/2012 | US8184413 Fault condition protection |
| 05/22/2012 | US8181458 Pressure recovery system |
| 05/17/2012 | US20120117959 Remote Control Circuit for a Hydraulically Operated Device |
| 05/16/2012 | EP2452093A1 Engine clutch and method of using same |
| 05/15/2012 | US8176734 Hydrostatic transmission having proportional pressure variable displacement pump for loop charge and fan flow supply |
| 05/08/2012 | US8172339 Compressed air supply system for a utility vehicle |
| 05/08/2012 | US8171728 High-efficiency liquid heat exchange in compressed-gas energy storage systems |
| 05/03/2012 | WO2011016024A3 System and method for supervised home care rehabilitation of stroke survivors |
| 05/02/2012 | CN102439307A Return to neutral mechanism for hydraulic pump |
| 04/24/2012 | US8162618 Method and device for controlling pump torque for hydraulic construction machine |
| 04/24/2012 | US8161742 Electro-hydraulic actuator mounting |
| 04/19/2012 | WO2012021360A4 Aircraft emergency and backup secondary power apparatus |
| 04/19/2012 | US20120090308 Hybrid hydraulic systems for industrial processes |
| 04/17/2012 | US8156738 Hydrostatic transmission having two axial piston units |
| 04/10/2012 | US8151688 Hydraulic circuit of construction machine |
| 04/05/2012 | US20120079821 Excavator drive system with bi state motor transfer switches |
| 04/03/2012 | US8146356 Procedure to align working equipment mounted to a liftable and lowerable hoisting frame of a working machine |
| 04/03/2012 | US8146354 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| 03/29/2012 | US20120073282 Hydraulic system |
| 03/29/2012 | US20120073280 Compressed air engine |
| 03/27/2012 | US8142729 Drive system and actuation method |
| 03/27/2012 | US8141355 Hydraulic system for an automatic transmission |
| 03/20/2012 | US8136355 Pump control apparatus for hydraulic work machine, pump control method and construction machine |
| 03/20/2012 | US8136354 Adsorption-enhanced compressed air energy storage |
| 03/20/2012 | US8136353 Method and apparatus for automatic pump shutoff |
| 03/15/2012 | US20120060488 Hydraulic energy source for supplying a downstream hydraulic system with hydraulic energy |
| 03/15/2012 | US20120060486 Hydraulic control device, control method of thereof, and automatic transmission |
| 03/15/2012 | US20120060485 Hydraulic control device, control method of thereof, and automatic transmission |
| 03/08/2012 | US20120055149 Semi-closed hydraulic systems |
| 03/08/2012 | US20120055148 Magnetic motor and automobile |
| 03/06/2012 | US8127541 Working fluid cooling control system for construction machine |
| 02/28/2012 | US8122718 Systems and methods for combined thermal and compressed gas energy conversion systems |
| 02/28/2012 | US8122713 Hydraulic circuit of a servo-assisted mechanical transmission |
| 02/23/2012 | US20120042642 Method for Predefining a Rotational Speed of a Drive Machine of a Drive System |
| 02/21/2012 | US8118148 Control method of external control type fan clutch |
| 02/21/2012 | US8117842 Systems and methods for compressed-gas energy storage using coupled cylinder assemblies |
| 02/21/2012 | US8117837 Hydrostatic transmission having integrated pressure compensated load sensing auxiliary pump |
| 02/16/2012 | WO2012021360A1 Aircraft emergency and backup secondary power apparatus |
| 02/14/2012 | US8113193 Reciprocating solar engine with attached solar windows |
| 02/14/2012 | US8112991 Hydrostatic transmission |
| 02/09/2012 | US20120032879 Method, Apparatus, and Article for Force Feedback Based on Tension Control and Tracking Through Cables |
| 02/09/2012 | US20120031086 Systems and methods for selectively disengaging a clutch to protect engines from damage |
| 02/02/2012 | US20120023920 Device for recovering energy |
| 02/02/2012 | US20120023918 Fluid working machine and method of operating a fluid working machine |
| 02/01/2012 | EP1595088B1 Torque-limiting coupling |
| 01/31/2012 | US8108081 System and method for associating a load demand with a variable power generation |
| 01/31/2012 | US8104277 Pump assembly |
| 01/31/2012 | US8104276 Hydraulic circuit to prevent bucket separation from bucket rest during traveling of heavy equipment |
| 01/31/2012 | US8104275 Hydraulic circuit for heavy equipment |
| 01/26/2012 | US20120017580 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| 01/19/2012 | US20120011842 Hydraulic transmission control |
| 01/19/2012 | US20120011841 Hydraulic device for stepless transmission |
| 01/19/2012 | US20120011839 Auxiliary hydraulic power generation system |
| 01/18/2012 | CN101493122B Seal assembly for reducing fluid loss from transmission pump |
| 01/17/2012 | US8096117 Compressor and/or expander device |
| 01/12/2012 | US20120006155 Shift transmission |
| 01/12/2012 | US20120006013 High-efficiency energy-conversion based on fluid expansion and compression |
| 01/05/2012 | US20120000192 Universal Control Scheme For Mobile Hydraulic Equipment And Method For Achieving The Same |
| 01/03/2012 | US8087241 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| 01/03/2012 | US8087240 Control apparatus for work machine |
| 01/03/2012 | CA2549910C Pressurized hydraulic fluid system with remote charge pump |