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Patent Searching and Data


Matches 551 - 600 out of 33,104

Document Document Title
WO/2013/179502A1
In order to provide a dump trunk that can be precisely guided to a destination even while unmanned without modifications being made to safety-critical parts, the dump trunk is provided with: a manned steering valve (20) for controlling t...  
WO/2013/180753A1
A power machine (100) and a power conversion system (106) for a power machine are disclosed. In an exemplary embodiment, the power conversion system includes a pump (206) configured to provide a source of pressurized hydraulic fluid and ...  
WO/2013/175866A1
With respect to a hydraulic closed circuit system that uses multiple hydraulic pumps, the objective of the present invention is to adjust the flow volume automatically and thus to enable the flow volume balance to be maintained in a sati...  
WO/2013/174716A1
A fluid control system (300) is provided. The fluid control system (300) includes a housing (301 ) with a fluid inlet port (302) configured to be fluidly coupled to a pressurized fluid source (402) and a fluid outlet port (303) configure...  
WO/2013/175699A1
Provided is a device for driving the boom of a construction machine, the device requiring reduced power. This construction machine is provided with: a boom cylinder (6); a variable displacement hydraulic pump (10); a control valve (12) f...  
WO/2013/171801A1
An oil-pressure control system for controlling hydraulic oil discharged from a variable-capacity oil-pressure pump using a closed-center control valve actuated on the basis of operation input from an operation device to supply an oil-pre...  
WO/2013/167286A3
The invention relates to a Kaplan turbine or other continuous flow machine, comprising the following features or components: a hub which supports a plurality of blades by means of drive journals; the drive journals can be rotated around ...  
WO/2013/167225A1
The invention relates to a device for riveting and to a hydropneumatic device (21) for pressure transmission, comprising a working piston (3) and a transmitting piston (17) formed as a double-acting cylinder, for transmitting pressure to...  
WO/2013/167610A1
The invention relates to a method for operating a hydraulic press used for the primary shaping, reshaping, punching or processing of materials or workpieces such as plastic molding compounds, deep-drawing sheets, forged pieces or the lik...  
WO/2013/167286A2
The invention relates to a Kaplan turbine or other continuous flow machine, comprising the following features or components: a hub which supports a plurality of blades by means of drive journals; the drive journals can be rotated around ...  
WO/2013/169996A1
A hydraulic circuit for lifting and lowering a load is disclosed. The hydraulic circuit may include a hydraulic pump (32), a fluid reservoir (34), a load-sense valve (62), and a hydraulic actuator (40) having a first chamber (40A) and a ...  
WO/2013/166875A1
Disclosed is supporting auxiliary equipment for forming a three-way part. A three-way workpiece to be machined is extruded in a main tubular cavity (2) of a mold cavity, such that the workpiece is pushed to extend within a branch tubular...  
WO/2013/164928A1
A hybrid working machine is provided with three pressure sensors (40, 41, 42) for detecting the discharge pressure of a hydraulic pump (2), the output pressure of an engine speed detection valve, and the output pressure of a differential...  
WO/2013/165951A1
A hydraulic actuator system is provided in which operator commanded flow is provided by a variable displacement hydraulic pump with electric control. The system includes an operator interface (5,6) which generates an output signal that i...  
WO/2013/161479A1
A hydraulic circuit (30) for a vehicle equipped with an EHPS system (10) and an oil pressure supply system (20), wherein the oil pressure supply system (20) is equipped with a cylinder (32), which stores oil at a second oil pressure P2 w...  
WO/2013/157295A1
Provided is an external force computation method, with which it is possible to implement, by not having a mechanical sensor, such as a displacement sensor, disposed thereon, miniaturization of a device and ease of sterilization washing. ...  
WO/2013/157125A1
A hydraulic control valve is configured in such a manner that a positive pressure chamber, in which an input port and an output port are open, and a back pressure chamber are respectively formed on one side and the other side of a piston...  
WO/2013/153984A1
A pressure compensation valve that does not fully close at stroke end is used and a travel operation is performed, whereupon pilot primary pressure is reduced and supplied to the remote control valves (34c-34h) of a non-travel operation ...  
WO/2013/150933A1
The valve structure of the present invention is provided with a first valve body, a second valve body attached to the first valve body, and a height setting part for prescribing the position of the second valve body in relation to the fi...  
WO/2013/150613A1
Provided is an oil pressure circuit capable of further improving the depressurizing action responsiveness and depressurizing action reliability of a relief valve device when a main circuit pressure exceeds a predetermined pressure. A rel...  
WO/2013/150985A1
The invention relates to a hydraulic circuit that enables the maintenance of a ganged valve in the hydraulic circuit and that facilitates the implementation of various functions including circuit flushing and trial run, and to a combinat...  
WO/2013/151599A1
[0049] A valve (10) and a hydraulic controller (45) are provider. The valve may combine a rotary-to-linear converter (24) with the hydraulic controller to provide for at least two mechanisms for actuating the valve. Additionally, the val...  
WO/2013/146420A1
This control valve device is provided with: a first working control valve; and a second working actuator-speed-up control valve connected in parallel thereto. The second working actuator-speed-up control valve has: a pilot chamber that s...  
WO/2013/146140A1
The supply and the discharge of pressurized oil with respect to a hoist cylinder (12) that tilts a vessel (3) is controlled by a control valve device (19). A throttle (24C), which restricts the flow volume of operating oil discharged fro...  
WO/2013/146666A1
The device is provided with a switch valve that operates in interlocking fashion to a control valve through pilot pressure supplied through a pilot valve, and that switches the behavior of an operated check valve. The switch valve is pro...  
WO/2013/145528A1
To sufficiently reduce hydraulic-pump drive losses. This control device is provided with a control unit (14) that: controls the action of a regeneration valve (22) so as to switch to a regeneration state when performing a compound action...  
WO/2013/140561A1
The present invention provides a flushing circuit for a hydraulic cylinder drive circuit, the flushing circuit being configured so as to flush both the reciprocating hydraulic cylinder and the inside of the drive circuit for the reciproc...  
WO/2013/141037A1
A travel-control valve is provided with a valve body and a spool. The valve body has a first pump port connected on the upstream side of a drive-control valve, a first connection port connected on the downstream side of the drive-control...  
WO/2013/138473A2
Certain examples present an improved compressed-air energy storage system. The system can include multiple sequential stages, in which accumulators are charged with air, which influences a hydraulic fluid to influence a pump/motor, and v...  
WO/2013/138473A3
Certain examples present an improved compressed-air energy storage system. The system can include multiple sequential stages, in which accumulators are charged with air, which influences a hydraulic fluid to influence a pump/motor, and v...  
WO/2013/135375A1
Device together with hydraulic system for actuating at least one first hydraulic consumer and at least one second hydraulic consumer. A device (32) for actuating at least one first hydraulic consumer (10) and at least one second hydrauli...  
WO/2013/132721A1
The objective of the present invention is to increase the pump absorption torque and increase the exhaust gas temperature in a hydraulic drive device that performs load-sensing control, thereby enabling filter deposits in an exhaust gas ...  
WO/2013/131394A1
A forging and charging/discharging two-purpose machine comprises a cart walking mechanism, a trolley walking mechanism, a rack revolving mechanism, a forceps mechanism, an electrical system, a hydraulic system and an operation console. T...  
WO/2013/127523A1
A hydraulic load-sensing control arrangement for a first and second hydraulic consumer (A1; A2, B2) is disclosed. A variable displacement pump (3) having load-sensing regulation (43) is provided therein. The highest respective load-sensi...  
WO/2013/128690A1
An operation-state determination unit determines whether a hydraulic cylinder is operating or not operating. A discharge-pressure reduction unit reduces the discharge pressure of a charge pump. When the hydraulic cylinder is not operatin...  
WO/2013/128622A1
Provided is a method for controlling a variable displacement pump using a closed center type directional control valve and calculation by a controller. According to the method of the present invention, it is possible to effectively utili...  
WO/2013/127175A1
Disclosed is a hydraulic system (100), comprising an oil tank (110), a hydraulic cylinder (108), a liquid-controlled reversing valve (106), a control apparatus, an apparatus providing a control oil supply and a pressure-sensing apparatus...  
WO/2013/127439A1
The invention relates to a compressed-air device for controlling valves, including, in a longitudinal direction: a first vane-type rotary actuator (1) having a front surface (2) as well as a back surface (4), said front surface (2) being...  
WO/2013/125079A1
A hydraulic drive system, wherein: a shuttle valve (51) connects a second flowpath (18) and a drain flowpath (52), when the oil pressure in a first flowpath (17) is greater than the oil pressure in the second flowpath (18); and the shutt...  
WO/2013/126312A1
A hydraulic system (16) is disclosed for use with a machine (10). The hydraulic system may have a tank (28), a motor (22) with a fluid inlet and a fluid outlet, and a pump (18) configured to draw fluid from the tank and discharge the flu...  
WO/2013/123792A1
A hydraulic control system comprising an oil cylinder (1). A small chamber of the oil cylinder is connected to a first oil line (11); a large chamber of the oil cylinder is connected to a second oil line (12). The first oil line (11) is ...  
WO/2013/121111A1
Invention relates to a valve arrangement (30) for controlling gas flow in a turbocharged internal combustion piston engine (12) comprising at least two parallel valve units (30.1...30.N), characterized in that a first group of the parall...  
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/2013/117052A1
A hydraulic pumping system for concrete pumping equipment, and concrete pumping equipment comprising the same, comprising a first main oil cylinder (1), a second main oil cylinder (2), a main oil pump (10) alternately supplying oil for t...  
WO/2013/115057A1
A structure for an automatic transmission control valve body (1) configured by inserting a separating plate (30) between main valve bodies (10, 20). The openings of the grooves (10a, 20a) formed in the respective opposing surfaces of the...  
WO/2013/114556A1
A hydraulic device (1) wherein an operating cylinder (2) and an acceleration cylinder (3) are equipped with pistons (5, 12), rods (6, 13), and tubes (4, 11), with the tubes (4, 11) partitioned into rod-side compartments (8, 15) and botto...  
WO/2013/113317A1
The present invention relates to a system (2) for control of a hydraulic system primary for pitch control of at least one rotor blade for a windmill which pressure source (4) through valves are connected to at least a first port (28) in ...  
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/2013/114980A1
This fluid pressure control device is provided with: a first control valve that switches in a manner so that a working fluid is supplied to the pressure chamber of a cylinder upon which the load pressure of a load acts, thus controlling ...  

Matches 551 - 600 out of 33,104