Matches 1 - 50 out of 83 1 2 >


Match Document Document Title
US20140366517 SYSTEM FOR REDUCING FUEL CONSUMPTION IN EXCAVATOR  
The present disclosure relates to a system for reducing fuel consumption in an excavator, and more particularly, to a system for reducing fuel consumption in an excavator, which may reduce fuel...
US20130074486 MULTI-PUMP SYSTEM WITH PUMP-FLOW DIVERSION  
A work vehicle has a pump group with two fixed-displacement pumps, an electro-hydraulic diverter openable to divert flow from one of the pumps to a fluid reservoir, and a controller configured to...
US20110056192 TECHNIQUE FOR CONTROLLING PUMPS IN A HYDRAULIC SYSTEM  
A hydraulic system includes a plurality of pumps that provide pressurized fluid to a plurality of hydraulic actuators some of which work more that others. That system is controlled by producing a...
US20130098019 Meterless Hydraulic System Having Flow Sharing and Combining Functionality  
A hydraulic system includes a variable-displacement first pump and a variable-displacement second pump. The hydraulic system also includes a first actuator selectively connected either to the...
US20130098016 Meterless Hydraulic System Having Flow Sharing and Combining Functionality  
A hydraulic system includes a variable-displacement first pump, a variable-displacement second pump, and a first actuator selectively connected either to the first pump in a closed loop manner and...
US20140026551 HYBRID CONSTRUCTION MACHINE  
A hybrid construction machine that enables to efficiently cool a generator motor, while suppressing an increase in the entire length of a power unit. A motor housing is provided with a bulging...
US20130098018 HYDRAULIC SYSTEM  
A hydraulic system includes a variable displacement first pump, a first linear actuator fluidly connected to the first pump via a first closed-loop circuit, a variable displacement second pump,...
US20140083089 ENERGY MANAGEMENT SYSTEM FOR MACHINERY PERFORMING A PREDICTABLE WORK CYCLE  
Industrial machines and methods of operating the same. One industrial machine includes at least one controller that is configured to (1) detect an occurrence of a regenerative work cycle segment...
US20130098020 Meterless Hydraulic System Having Flow Sharing and Combining Functionality  
A hydraulic system includes a variable-displacement first pump, an over-center variable-displacement first travel motor selectively connected to receive fluid pressurized by the first pump in a...
US20150135699 HYDRAULIC VALVE ARRANGEMENT WITH CONTROL/REGULATING FUNCTION  
The present invention relates to a hydraulic valve arrangement for controlling/regulating at least one hydraulic consumer of a mobile machine, with a summation interconnection of at least two...
US20150174997 DRIVE SYSTEM, IN PARTICULAR FOR A SELF-PROPELLED CONSTRUCTION MACHINE, IN PARTICULAR A SOIL COMPACTOR  
A drive system, in particular for a self-propelled construction machine, in particular a soil compactor, comprising an internal combustion engine comprising a drive unit, at least one hydraulic...
US20150233394 HYBRID SHOVEL AND HYBRID SHOVEL CONTROL METHOD  
A hybrid shovel includes an engine that is controlled at a constant revolution speed, a motor generator that assists the engine, a control part that controls a drive of the motor generator, and a...
US20150135698 HYDRAULIC VALVE ARRANGEMENT WITH CONTROL/REGULATING FUNCTION  
The present invention relates to a hydraulic valve arrangement for controlling/regulating at least one hydraulic consumer of a mobile machine, with a summation interconnection of at least two...
US20140013736 MIXER DRUM DRIVING DEVICE  
A mixer drum driving device includes a mixer drum, a hydraulic motor, a hydraulic pump, an auxiliary hydraulic pump for rotating the mixer drum for mixing by supplying pressure oil to the...
US20150033727 HYBRID CONSTRUCTION MACHINE  
A hybrid construction machine includes first and second main pumps, first and second supply passages, first and second circuit systems, a hydraulic motor, a motor generator, an assist pump, a...
US20140083092 HYDRAULIC CIRCUIT FOR CONSTRUCTION EQUIPMENT  
A hydraulic circuit for construction equipment is provided, which supplements hydraulic fluid of a hydraulic pump for a cooling fan and hydraulic fluid of a main hydraulic pump and uses the...
US20120152575 HYDRAULIC SYSTEM HAVING DUAL TILT BLADE CONTROL  
A hydraulic system for a machine is disclosed. The hydraulic system may have a tank configured to hold a supply of fluid, a pump configured to draw fluid from the tank and pressurize the fluid, a...
US20120048029 HYDRAULIC SYSTEM AND UNIVERSAL TESTING MACHINE  
There is provided a hydraulic system, including an oil tank storing operating oil, a hydraulic actuator, and a hydraulic pump which draws the operating oil from the oil tank and supplies the...
US20090071142 Hydraulic control device for vehicular hydraulic control circuit  
In a vehicular hydraulic control circuit equipped with a mechanically-operated oil pump and an electrically-operated oil pump, a hydraulic control device is provided for reducing a high load...
US20100083649 Configurable Hydraulic System  
A configurable hydraulic system facilitates a variety of oilfield cementing and other oilfield or related applications. The system employs a plurality of prime movers to drive a plurality of...
US20150075150 CLOSED HYDRAULIC CIRCUIT  
The present invention relates to a closed hydraulic circuit between a hydraulic pump and a hydraulic motor that are connected to one another via working lines, a flushing pump being provided in...
US20110056194 HYDRAULIC SYSTEM FOR HEAVY EQUIPMENT  
Heavy equipment includes first and second hydraulic pumps, and first and second hydraulic actuators, where the first hydraulic actuator facilitates a first work function of the heavy equipment and...
US20090266067 ARRANGEMENT FOR OPERATING A HYDRAULIC DEVICE  
A fluid system includes a controllable first pump unit for supplying fluid pressure to at least one implement; a prime mover arranged to supply a driving torque to the first pump The first pump...
US20150204359 CONSTRUCTION MACHINE  
A construction machine includes a first hydraulic pump, a second hydraulic pump, and a hydraulic circuit. The first hydraulic pump supplies hydraulic oil to a hydraulic actuator of a first system....
US20130098011 HYDRAULIC SYSTEM HAVING MULTIPLE CLOSED-LOOP CIRCUITS  
A hydraulic system is disclosed. The hydraulic system may have a first circuit fluidly connecting a first pump to a swing motor in a closed-loop manner, and a second circuit fluidly connecting a...
US20120152056 Multiple-variator control for split power CVT and hydrostatic transmissions  
A system for providing hydraulic power in a machine transmission includes a first hydraulic variator and a second hydraulic variator, each variator having a mechanical input to a hydraulic pump,...
US20110030364 FLOW MANAGEMENT SYSTEM FOR HYDRAULIC WORK MACHINE  
A flow management system capable of providing adjustable hydraulic fluid flow or pressure at a common line to supply bidirectional pumps in electro-hydrostatic actuation systems and conditioning...
US20090266068 System for Selectively Routing Transmission Fluid to a Torque Converter  
A torque converter coupled to a transmission has a torque converter operating mode and a lockup operating mode. A first pump may be configured to supply transmission fluid to a plurality of...
US20090038305 Hydraulic system for an automatic transmission  
A hydraulic system for an automatic transmission operatively connected to an internal combustion engine that is operable in a start-stop mode. The hydraulic system includes a hydraulic energy...
US20090077837 WORK MACHINE  
A boom control circuit for controlling hydraulic fluid fed to a boom cylinder is provided separately and independently from a travel/stick/bucket control circuit, which serves to control hydraulic...
US20120233996 SYSTEM FOR ALLOCATING FLUID FROM MULTIPLE PUMPS TO A PLURALITY OF HYDRAULIC FUNCTIONS ON A PRIORITY BASIS  
A valve assembly has a flow summation node coupled to a displacement control port of the first pump. Each valve in the assembly has a variable metering orifice controlling flow from an inlet to a...
US20150121859 APPARATUS AND METHOD FOR SUPPLYING FUEL TO ENGINE OF SHIP  
Disclosed herein are an apparatus and a method for supplying a fuel to an engine of a ship. The apparatus for supplying a fuel to an engine of a ship includes: a high pressure pump pressurizing a...
US20090229262 Hydraulic system  
The invention relates to a hydraulic system for actuating a belt-driven conical-pulley transmission with a variably adjustable transmission ratio, of a vehicle, having at least one hydraulic...
US20090151346 SHOCK ABSORPTION DEVICE AND CONTROL METHOD THEREOF FOR SMALL SWING RADIUS EXCAVATOR  
A shock absorption device and a control method thereof for a small swing radius (SSR) excavator are provided, which can relieve shock generated on a boom cylinder by controlling only the discharge...
US20080203234 Trim Actuator Actuating System for a Hydraulically Actuatable Trimmable Horizontal Stabilizer Actuator  
The present invention relates to a trim actuator actuating system having two separate hydraulic power supply systems, through which it is possible for the first time to use a hydraulic linear...
US20090293468 SYSTEM AND METHOD OF CONTROLLING TORQUE OF PLURAL VARIABLE DISPLACEMENT HYDRAULIC PUMPS  
A system and method of controlling torque of plural variable displacement hydraulic pumps in construction equipment are provided, which can control torque of the variable displacement hydraulic...
US20060277905 Hydraulic control device of industrial machinery  
A hydraulic control device for an industrial machine, which can efficiently control a high flow rate of a pressure oil by a simple hydraulic instrument configuration, is provided. For this...
US20100000209 Hydraulic control system in working machine ( as amended  
A hydraulic control system in a working machine includes hydraulic cylinders that make a working part ascend and descend; a first main pump that suctions oil from an oil tank and discharges the...
US20090090102 METHOD OF REDUCING THE LOAD OF ONE OR MORE ENGINES IN A LARGE HYDRAULIC EXCAVATOR  
A method of reducing the load of at least one engine arranged in an hydraulic excavator during a speed overload situation of a respective engine, includes reducing a delivery quantity of at least...
US20130055704 Apparatus for Controlling Raise Speed of Working Machine for Heavy Equipment  
The present disclosure relates to an apparatus for controlling a raise speed of a working machine for heavy equipment that includes first and second pumps, a main control valve unit that includes...
US20100071359 HYDRAULIC DEVICE AND WORK MACHINE  
A hydraulic device has a first pump, a second pump, an operating state detector configured and arranged to detect an operating state, a connection switching unit configured and arranged to...
US20100205951 Hydrostatic differential transmission  
A hydrostatic differential transmission comprising a cylinder housing containing an input pump and an output pump. The two hydraulic pumps are mounted with the output pump inside the input pump....
US20110005214 Hydraulic system  
A hydraulic system for actuating a motor vehicle transmission by a control hydraulic power source that includes a control hydraulic pump for providing a high hydraulic pressure, a control pressure...
US20140245730 PRIORITY CONTROL SYSTEM FOR CONSTRUCTION MACHINE  
Disclosed is a lower track for mounting rubber pads on a track shoe to be attachable and detachable after assembling a steel plate which is adhered with divisionally formed rubber pads as a single...
US20150047335 MIXER DRUM DRIVING APPARATUS  
A mixer drum driving apparatus includes an auxiliary fluid pressure pump that is provided independently of a fluid pressure pump and is capable of supplying a working fluid to a fluid pressure...
US20080209902 Hydraulic system  
A hydraulic system for actuating a clutch and/or a variable speed drive unit of a belt-driven conical-pulley transmission of a vehicle, such as a commercial vehicle, and having a variable...
US20150113971 HYDRAULIC CONTROL SYSTEM  
A hydraulic control system includes a first oil passage, a first oil pump, a second oil passage, a second oil pump and a check valve. The first oil pump is disposed in the first oil passage. The...
US20090255247 Method of controlling a hydraulic actuator  
A control method for controlling a hydraulic actuator to impart oscillatory excitation to a load, the actuator comprising at least one hydraulic chamber and a movable member capable of moving in...
US20100107622 SYSTEM AND METHOD FOR PILOT-OPERATED HIGH PRESSURE VALVE  
A system and method for operating a two-stage, high-pressure pumping system includes a low-pressure pump having an output configured to deliver a hydraulic fluid under a low-pressure at a...
US20120093624 WORK MACHINE AND CONTROL METHOD FOR WORK MACHINES  
In a work machine, a control unit controls a pilot control valve for controlling the opening area of a first direction switch valve in executing the combined operation to be less than or equal to...

Matches 1 - 50 out of 83 1 2 >