| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 060433000 | Having correlated or joint actuation of controller of input to motive fluid pressurizer and of controller of motive fluid floow | 6 |
| 20090094974 | FUEL FEED CIRCUIT FOR AN AIRCRAFT ENGINE - A head loss element is interposed between the outlet from the pump delivering high pressure fuel and the pipe feeding combustion chamber injectors. A servo-valve for feeding a hydraulic actuator of a variable-geometry component of the engine has an HP admission inlet connected to the outlet from the pump upstream from the head loss element and an LP outlet connected to the feed pipe downstream from the head loss element. Thus, the flow rate taken upstream from the head loss element for driving the actuator is compensated by the flow rate reinjected downstream from the head loss element, thereby avoiding any movement of the variable-geometry component giving rise to a disturbance in the flow rate delivered to the injectors. | 04-16-2009 |
| 20090308066 | Motor Control Device for Construction Machinery - A motor control device for construction machinery includes a hydraulic pump; a hydraulic motor driven by pressure oil from the hydraulic pump; a control valve that controls a flow of the pressure oil from the hydraulic pump to the hydraulic motor; a pair of main conduit lines that connect the hydraulic motor and the control valve on a delivery side and a return side thereof; an operation member that operates a spool of the control valve to either a neutral position that does not allow the pressure oil for driving from the hydraulic pump to pass through control valve to the hydraulic motor or a non-neutral position that allows the pressure oil for driving to pass through the control valve to the hydraulic motor; a braking pressure generating device that generates braking pressure in the main conduit lines on the return side in a state where the spool of the control valve is positioned in the neutral position as a result of being operated by the operation member, the braking pressure opposing rotation of the hydraulic motor; and a flow control device for allowing the pressure oil from the hydraulic pump to flow into the pair of main conduit lines while the braking pressure is generated by the braking pressure generating device. | 12-17-2009 |
| 20100089050 | METHOD FOR OPERATING A WORKING MACHINE AND A WORKING MACHINE - A method for operating a working machine provided with a power source providing power and a plurality of power consuming systems connected to the power source includes the steps of providing a model predicting a power demanded by at least one of the power consuming systems, detecting at least one operational parameter indicative of a power demand, using the detected operational parameter in the prediction model, and balancing a provided power to the demanded power according to the prediction model. | 04-15-2010 |
| 20140041375 | Pneumatic Actuation Assembly - An actuator assembly is provided. The actuator assembly includes housing configured for operable engagement by a user, a trigger assembly operably supported on the housing, a gas cartridge releasably secured to the housing, a valve assembly mounted within the housing for controlling the flow of pressurized gas through the housing and a cylinder actuator operably operably connected to the valve assembly. The cylinder actuator includes a piston selectively extendable therefrom configured for depressing a plunger. The piston includes a head having an inlet surface disposed within an inlet chamber of the cylinder actuator and an outlet surface disposed within the outlet chamber of the cylinder actuator. The exposed surface area of the first surface is equal to the exposed surface of the second surface. | 02-13-2014 |
| 20140157765 | Hydrostatic Positive Displacement Machine - A hydrostatic positive displacement machine ( | 06-12-2014 |
| 20140298792 | HYDRAULIC STEERING ARRANGEMENT - A hydraulic steering arrangement ( | 10-09-2014 |
