Patents
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)
09/2013
09/10/2013US8528325 Pump assembly
09/03/2013US8522543 Hydraulic control system utilizing feed-forward control
09/03/2013US8522541 Hydraulic circuit of winch for crane
09/03/2013US8522538 Systems and methods for compressing and/or expanding a gas utilizing a bi-directional piston and hydraulic actuator
08/2013
08/28/2013CN102057177B Transmission gear engagement mechanism and method of operation
08/27/2013US8516811 Oil pressure system and valve assembly used in oil pressure system
08/27/2013US8516810 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange
08/21/2013EP2628952A1 A hydraulic transmission system
08/21/2013EP2628951A1 A gerotor device
08/13/2013US8505703 Eccentric gearing type clutch
08/13/2013US8505291 Hydraulic system having load sensing capabilities
08/13/2013US8505290 Drive for rotating structure
08/13/2013US8505289 Fixed/variable hybrid system
07/2013
07/25/2013WO2013107197A1 Transmission device
07/24/2013CN203082072U Blade-type hydraulic transmission torque safety clutch
07/16/2013US8484961 Vacuum accumulator system and method for regenerative braking system
07/11/2013US20130174538 Torque converter
07/09/2013US8479505 Systems and methods for reducing dead volume in compressed-gas energy storage systems
07/09/2013US8479503 Axle driving apparatus
07/02/2013US8474255 Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange
07/02/2013US8474254 System and method for enabling floating of earthmoving implements
07/02/2013US8474253 Pressure accumulator to establish sufficient power to handle and operate external equipment and use thereof
06/2013
06/27/2013WO2013096300A2 Hydraulic system with fluid flow summation control of a variable displacement pump and priority allocation of fluid flow
06/27/2013US20130160443 Hydraulic system with fluid flow summation control of a variable displacement pump and priority allocation of fluid flow
06/25/2013US8469826 Radial piston damped torsional coupling and machine using same
06/25/2013US8468818 HST cooling circuit
06/25/2013US8468816 Hybrid working machine
06/25/2013US8468814 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange
06/18/2013US8464826 Hydraulic traveling vehicle
06/18/2013US8464526 Hydraulic pump control system
06/13/2013US20130145757 Hydraulic control system
06/13/2013US20130145756 System and method for determining accumulator fill
06/11/2013US8459019 System and method for pilot-operated high pressure valve
06/04/2013US8453441 System and method for pump-controlled cylinder cushioning
05/2013
05/28/2013US8448433 Systems and methods for energy storage and recovery using gas expansion and compression
05/28/2013US8448432 Actuators
05/28/2013US8448431 Hydraulic circuit adapted for coupling motors
05/23/2013US20130131937 Method Of Effecting Simultaneous Displacement Changes In Hydrostatic Drive Machine
05/23/2013US20130125536 System and method for energy recovery
05/21/2013US8443596 Hydraulic drive with an independent charge pump
05/16/2013WO2013070641A1 Hydrostatic drive for a machine
05/16/2013US20130124065 Hydrostatic traction drive and vehicle with such a traction drive
05/14/2013US8439784 Braking system
05/14/2013US8438843 Hydraulic system of work machine
05/10/2013WO2013066837A1 Hystat drive system having engine speed control
05/09/2013US20130111893 Hydrostatic Drive
05/09/2013US20130111888 Torque output control for swing pump
05/07/2013US8435010 Control of a fluid pump assembly
05/07/2013US8434302 Hydraulic system including open loop and closed loop valve control schemes
05/07/2013US8434301 Local backup hydraulic actuator for aircraft control systems
05/02/2013US20130104535 Pump displacement control mechanism
05/02/2013US20130104534 Energy harvesting passive and active suspension
04/2013
04/30/2013US8432054 Wind turbine with hydrostatic transmission
04/30/2013US8429909 Control system and method for controlling at least two hydraulic consumers
04/30/2013US8429908 Hydraulic system
04/25/2013US20130098026 Hydraulic Fluid Actuated Equipment Leveling Assembly
04/25/2013US20130098025 Coiled Tubing Injector with a Weight on Bit Circuit
04/24/2013EP2584221A1 Transmission device for transferring a torque and apparatus for generating or converting a torque
04/24/2013EP2582924A2 Advanced adiabatic compressed air energy storage system
04/23/2013US8424301 Hydraulic flow sharing system for excavating and pipe laying work
04/23/2013US8424300 Sea electricity energy production unit
04/23/2013US8424299 Hydraulic drive device for large hydraulic excavator
04/23/2013US8424298 Pump torque control system for hydraulic construction machine
04/16/2013US8418452 Hydrostatic transaxle
04/16/2013US8418451 Piece of working equipment
04/09/2013US8413437 Transmission hydraulic control system having independently controlled stator cooling flow
04/04/2013US20130081383 Closed-loop hydraulic system having energy recovery
04/04/2013US20130081382 Regeneration configuration for closed-loop hydraulic systems
04/03/2013CN101069014B Machine and system for power generation through movement of water
04/02/2013US8407994 Rotation control system for working-machine pump
04/02/2013US8407993 Method for controlling a hydraulic cylinder in a work machine
03/2013
03/26/2013US8402759 Drive having an energy storage device and method for storing kinetic energy
03/21/2013WO2013040338A2 Boundary layer disk turbine systems for hydrocarbon recovery
03/21/2013US20130068328 Gerotor Pump Assembly and Engine Fluid Delivery System Using a Gerotor Pump Assembly
03/21/2013US20130068314 Boundary Layer Disk Turbine Systems for Hydrocarbon Recovery
03/21/2013CA2848393A1 Boundary layer disk turbine systems for hydrocarbon recovery
03/20/2013CN101265952B A hydraulically operable coupling
03/19/2013US8397507 Active brake booster system
03/12/2013US8393151 Flow rate control device of hydraulic pump in power steering system
03/12/2013US8393150 System and method for operating a variable displacement hydraulic pump
03/05/2013US8388321 Positive displacement pump apparatus
03/05/2013US8387378 Hydraulic system having automated ride control activation
03/05/2013US8387376 Hydraulic system with improved complex operation
03/05/2013US8387375 Systems and methods for optimizing thermal efficiency of a compressed air energy storage system
02/2013
02/28/2013WO2012161601A8 Clutch
02/28/2013US20130047600 Charged hydraulic system
02/28/2013US20130047599 Meterless hydraulic system having load-holding bypass
02/28/2013US20130047597 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange
02/27/2013CN202756476U Novel structure plastic liquid storage tank
02/26/2013US8381517 Hydraulic drive apparatus
02/26/2013US8381516 Apparatus and methods for actuation
02/21/2013US20130042751 Fluid-Actuated Controller Capable of Feedback Regulation
02/21/2013US20130042604 Positioning device that performs retracting action using air balance
02/21/2013US20130042602 Power Train For a Hybrid Vehicle
02/19/2013US8375711 Compact vacuum material handler
02/19/2013US8375710 Transmission hydraulic control system having an accumulator for priming a pump
02/14/2013US20130036730 Hybrid power system architecture for an aircraft
02/14/2013US20130036729 Working machine
02/14/2013US20130036727 Device having a hydraulic drive for civil engineering
02/12/2013US8374755 Machine with task-dependent control
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