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Matches 451 - 500 out of 8,068

Document Document Title
WO/2013/130768A1
A hydraulic system (10) that includes a rotating group (600) with a plurality of fluid chambers and a plurality of valve sets that valve a corresponding one of the fluid chambers is disclosed. The hydraulic system may function as a hydra...  
WO/2013/103954A3
A method of controlling a float function of a cylinder 25 having a first side and a second side includes connecting the second side of the cylinder to a reservoir 15; connecting the first side of the cylinder to an output of a pump 20 an...  
WO/2012/171603A3
The invention relates to a method (500) for controlling a torque of an electric motor of an electro-hydraulic system. The method (500) comprises the step of selecting (510) a value of a set point torque depending on a current pressure in...  
WO/2013/121922A1
Construction machinery is provided which can significantly reduce fuel consumption through the efficient use of recovered energy. The construction machinery includes: a first hydraulic pump (3) and a second hydraulic pump (9) for dischar...  
WO/2013/122531A1
A separate hydraulic power pack (2) for providing at least one user with an oil flow is presented. The hydraulic unit (2) comprises: a motor (14), a hydraulic pump driven by the motor (14), a tank (16), an oil inlet (20), an oil outlet (...  
WO/2013/113475A1
The invention relates to a valve (10), comprising a valve housing (12) provided with a fluid inlet (14), a fluid outlet (16), and a throttling device (18), said throttling device forming a permanent connection between the fluid inlet (14...  
WO/2013/115986A1
A hydraulic system includes a pump (22) that draws fluid from a reservoir (24) and an actuator (26) having a first port and a second port. A metering valve arrangement (28) controls fluid flow through the actuator and includes a meter-in...  
WO/2013/115053A1
This hybrid construction machine is provided with: a first and a second main pump; a first and a second supply path; a first and a second circuit system; a hydraulic motor; a motor generator; an assist pump; a branched converging path co...  
WO/2012/091942A8
Example fluid circuits (e.g., within aircrafts) include first (12) and second (32) pump assemblies. The first pump assembly has an electric motor (18) and a first fluid pump (16). The first fluid pump is coupled to the electric motor and...  
WO/2013/111707A1
A hybrid construction machine comprises 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 joint passage which is connected to the assi...  
WO/2013/111705A1
A circuit pressure control apparatus comprises: a relief valve which is connected to a connection passage with which an actuator communicates on the upstream side; and a variable throttle which is upstream of the relief valve and the ope...  
WO/2012/113512A3
The invention relates to a hydraulic fan drive, comprising an adjustable hydraulic machine (10) having an adjusting device (32) for the displacement volume, a hydraulic motor (15) for driving a fan wheel (16), and a pressure line (14) wh...  
WO/2013/109418A1
A method of controlling a valve (206) includes detecting a supply pressure at a fluid source (202) and detecting a first port (208) pressure at a first side of a piston (214). A controller (224) actuates the valve from a closed position ...  
WO/2013/108445A1
A purpose of the invention is to reduce the load acting on an engine at engine startup and startup the engine quickly, and to reliably supply pressure oil to an accumulator from a hydraulic pump. A hydraulic control device comprises: fir...  
WO/2013/107466A1
The invention relates to a method for configuring a fluid control unit (2), having the steps: provision of information about the fluid control unit (2) and about a movement device (7) and about fluid control valves (3, 4, 5, 6) to a proc...  
WO/2013/108575A1
The vehicle body (2) of a dump truck (1) is provided with a hydraulic oil tank (16) for storing hydraulic oil supplied from a hoist cylinder (15) or the like. The hydraulic oil tank (16) is provided with a heating chamber (23). A heating...  
WO/2013/106245A1
A method for operating a materials handling vehicle includes activating the materials handling vehicle and performing a warm up cycle. During the warm up cycle, energy is provided to at least one valve within the materials handling vehic...  
WO/2013/021288A3
A hydraulic transmission system for a vehicle includes a main closed circuit having a first hydraulic flow generator/actuator means (1), a second hydraulic flow generator/actuator means, (4) and a third hydraulic flow generator/actuator ...  
WO/2013/106431A2
A hydraulic circuit architecture for a work vehicle includes a pump, a work circuit, a propel circuit, and a circuit selector. The work circuit is connected to an actuator for driving a work component of the work vehicle. The propel circ...  
WO/2013/106131A1
A method includes energizing a solenoid valve of a hydraulic control system according to a predetermined timing schedule to move a valve member of the solenoid valve. The solenoid valve is operatively connected to the switching component...  
WO/2013/102270A1
An electro/hydraulic circuit enabling two mechanical devices to shadow each other's movements without any direct mechanically-operative linkage between the devices. The two devices incorporate matching sets of hydraulic actuators for ind...  
WO/2013/059110A3
A hydraulic system (72) is disclosed. The hydraulic system may have a unidirectional variable displacement first pump (76), a first hydraulic actuator (26) connected to the first pump via a closed-loop first circuit (74), a unidirectiona...  
WO/2013/100511A1
The present invention relates to a hydraulic system of a construction machine. A hydraulic system of a construction machine according to the present invention includes: an EPPRV (60, Electronic Proportional Pressure Reducing Valve) for c...  
WO/2013/101410A1
A system (64) for controlling a transmission (38) including a fluid pump (42) and a fluid motor (44) operably coupled to one another in a fluid circuit (62) is disclosed. The system includes a controller (66) configured to receive signal...  
WO/2013/100458A1
The present invention relates to a boom cylinder control circuit for a construction machine, comprising: a boom cylinder which includes an ascending-side chamber and a descending-side chamber; a boom control unit which provides the boom ...  
WO/2013/100457A1
The present invention relates to a system for reducing fuel consumption in an excavator, comprising: first and second hydraulic pumps which are driven by the power of an engine and respectively discharge first and second hydraulic oils; ...  
WO/2013/097918A1
The invention relates to a valve unit to be mounted at a mounting point (221a) on a connection plate (200), wherein the valve unit (100) can be actuated, particularly electrically, in order to control a fluid supply to a working channel ...  
WO/2013/099710A1
The amount of operation of an operation lever (4a) is detected by a pressure sensor (16) and input into a controller (9), at the lowering operation of a boom (111). The controller (9): finds a target flow rate (QO) for return oil dischar...  
WO/2013/093511A1
A hydraulic system including hydraulic fluid, a hydraulic machine (142) for pressuring the hydraulic fluid, a hydraulic circuit for delivering the hydraulic fluid to a hydraulic actuator (103A, 103B), the hydraulic machine (142) being co...  
WO/2013/094793A1
Disclosed is a drive merge control system for securing a driving speed by merging low RPM and a low-capacity pump discharge flow rate when driving a wheel-type excavator at a high speed. The present invention provides the drive merge con...  
WO/2013/094794A1
Disclosed is a hydraulic fan drive control system for construction machinery which is capable of reducing the engine horsepower required to drive a hydraulic fan by starting or stopping the driving of the hydraulic fan used to cool a rad...  
WO/2013/095208A1
The invention relates to a method for controlling lowering of an implement (3) of a working machine. The working machine has a hydraulic system (10) comprising a hydraulic cylinder (11) for moving the implement and a first control valve ...  
WO/2013/045167A3
The invention relates to a hydraulic system, preferably for piloting and actuating a two-cylinder thick matter pump. The hydraulic system comprises a tank (68) for receiving hydraulic oil, a primary circuit having at least one hydraulic ...  
WO/2013/004521A3
The present invention relates to a braking system module (1), such as an coilbox (2), comprising a housing (3) and a connector (6). The connector comprises a connector body (7) and contact elements (8) defining a connection interface (9)...  
WO/2013/007743A3
The invention relates to a compressed air processing system (10) for a vehicle, in particular a commercial vehicle, which comprises a compressor control output (12), a solenoid valve device (16) which can be actuated by an electronic con...  
WO/2013/087153A1
The invention relates to a method for monitoring a fluid-conveying system, in particular a hydraulic system, comprising ascertaining the presence of particles in the fluid and/or the determination of the degree of soiling by means of at ...  
WO/2013/090152A1
A hydraulic system (50) for a machine (10) is disclosed. The hydraulic system may have a pump (58) configured to pressurize fluid, a swing motor (44) driven by pressurized fluid to swing a body (38) of the machine relative to an undercar...  
WO/2013/089299A1
The present invention relates to a driver self-tuning method using an electro-hydraulic actuator system, the method comprising: a step in which a specific EHA system is selected by a HMI; a step of displaying a graph defining the mapping...  
WO/2013/089130A1
The present invention addresses the problem of providing, in a return oil passage that returns operating oil from hydraulic actuators to an operating oil tank, a bypass oil passage that bypasses an oil cooler, and of enabling the operati...  
WO/2013/055156A4
The present invention relates to a hydraulic control device using a hydraulic actuator, provides a hydraulic control device using a hydraulic actuator, and comprises: a hydraulic actuator having a clearance pocket; an oil supply line and...  
WO/2013/085086A1
Disclosed is a hydraulic system for increasing the fuel efficiency of equipment by lowering the relief pressure of a relief valve so as to minimize the loss of power of an engine when in a standby mode, in which a working device or the l...  
WO/2013/078810A1
Provided are a hydraulic motor system for a unit head of a self-cooling rotary drilling rig and the rotary drilling rig. The hydraulic motor system for a unit head of a self-cooling rotary drilling rig comprises one or more hydraulic mot...  
WO/2013/080767A1
An oil pump (28) is operated full-time to suction hydraulic oil (o) from an oil tank (24), and accumulation is performed so that the hydraulic oil (o) becomes pressurized in an accumulator (30). During steering, the hydraulic oil (o) is ...  
WO/2013/079151A1
The invention relates to a system for improving the energy efficiency in hydraulic systems, comprising at least one working cylinder (58) which, in an operating state, operates as a consumer of hydraulic energy and, in a different operat...  
WO/2013/080633A1
In order to provide a regeneration control device for work vehicles which is capable of preventing the operational discomfort and uneasiness of an operator by attenuating the disparity between driving performance during regeneration, i.e...  
WO/2013/078213A1
A hydraulic system includes a tank (20) for hydraulic fluid, a supply line (18) connected to a pump (22) and a plurality of hydraulic functions (12, 14, 16)connected to the supply line (18). Each hydraulic function includes an actuator (...  
WO/2013/077968A1
A control system 108 for a work implement 116 on a machine 100 is disclosed including a first hydraulic circuit 201, a second hydraulic circuit 208, and a controller 182. The first hydraulic circuit 201 includes a hydraulic cylinder asse...  
WO/2013/070466A1
A hydraulic circuit (200) including a hydraulic swing motor (16) having a first port (214) and a second port (216). A first motor conduit (210) connected to the first port (214) of the hydraulic swing motor, and a second motor conduit (2...  
WO/2013/070762A1
Systems and methods for providing tube end forming equipment or machines that utilize the advantage of hydraulic power without having the constant noise, heat, and energy usage associated with traditional hydraulic power units. The end f...  
WO/2013/064564A1
A launch system (1) for a lifeboat including a hydraulic subsystem configured for emergency launch of a lifeboat. The subsystem includes a motor (10) configured for, during launch operation, establishing a flow of pressurized hydraulic o...  

Matches 451 - 500 out of 8,068