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Patent Searching and Data


Matches 701 - 750 out of 8,687

Document Document Title
WO/2012/091182A1
Disclosed is a hydraulic pump for construction machinery for controlling to inhibit one-way driving when compound-operating two-way driving and work devices, such as a boom, to enhance operation efficiency. The hydraulic system for the c...  
WO/2012/088892A1
Disclosed are a rotating valve and a rotating control loop using the same. The rotating valve comprises a main valve (1) and a control valve (2), the main valve comprises a main valve rod (1h), the control valve comprises a control valve...  
WO/2012/091187A1
Disclosed is a hydraulic control system for matching the drive speed of a boom up and a swing device according to the operation environment when compound-driving for manipulating boom and swing for excavation compensating error operation...  
WO/2012/091192A1
Disclosed is a method of controlling the flow rate of a hydraulic pump, which controls the discharge flow rate in proportion to a manipulated amount of a manipulation lever operated by a user even when the discharge pressure of the hydra...  
WO/2012/085416A1
The invention relates to a device having a casing (9), an electronic control circuit (14) for the device, produced on at least one support (15) fixed to the device, and a cover (40) intended to protect said electronic circuit (14), chara...  
WO/2012/037516A3
A valve actuator control system for use with a valve actuator may include two pump assemblies, two control valve assemblies, two transducers, a fluid reservoir, and a controller assembly. The controller assembly may actuate the pump asse...  
WO/2012/085417A1
The invention relates to the production of electromechanical actuators and in particular the protection of the electronic control circuits of these actuators in harsh environments. For this purpose, the invention relates to a device comp...  
WO/2012/087012A2
The present invention relates to a hydraulic system for a construction machine which uses an electric hydraulic pump, and more particularly, to a hydraulic system including an emergency control unit for temporarily operating the construc...  
WO/2012/083577A1
A compressed air single-action actuator includes an actuator body (113), two ends of which are provided with a piston (102) respectively. A rack (103) is provided on the piston (102), and a center shaft (104) is provided between the two ...  
WO/2012/085460A1
The invention relates to compact actuators that can be used, for example, in a motor vehicle. According to the invention, the electromagnetic actuator (3) comprises a casing (9) having multiple surfaces (20, 21) and an electronic control...  
WO/2012/087081A2
The present invention relates to an oil pressure system for a wheel loader, and more particularly to a wheel loader which includes an oil pressure system having a confluent circuit and reduces the occurrence of impact during a loading wo...  
WO/2012/085411A1
The invention relates to the production of electromagnetic actuators and, in particular, the protection of said actuators in harsh environments. More specifically, the invention relates to a device including a case (9) and a covering (40...  
WO/2012/087571A1
A pressure protection valve (40) is provided which provides a fluid short circuit between a fluid pressure inlet (16) of a hydraulic tool (10) such as a hydraulic hammer (10) and a low pressure region (20) when the pressure at the fluid ...  
WO/2012/082357A2
A hydraulic system (76) for a machine (10) is disclosed. The hydraulic system may have a tank (78) configured to hold a supply of fluid, a pump (80) configured to draw fluid from the tank and pressurize the fluid, a first cylinder (34) o...  
WO/2012/082354A2
An independent metering valve (24) (IMV) assembly is disclosed that includes a metering stem (21) including an inlet (29). The IMV assembly also includes a hydro-mechanical control valve (37) in communication with a fluid source and the ...  
WO/2012/082355A2
A load lock valve (72) for a hydraulic system (44) is disclosed. The load lock valve may have a block (63) with a first bore (88), and a body (90) disposed within the first bore. The body may have a second bore (82), and first and second...  
WO/2012/076035A1
The invention relates to an electrofluidic control device (1), which has a modularly constructed control unit (2). The control unit (2) contains an electrical assembly (5) and a fluidic assembly (6), between which a diagnostic module (7)...  
WO/2012/078255A2
An integrated manifold system maximizes space for the circuit board while enabling efficient control of one or more pneumatic devices. The manifold system includes a manifold block, a solenoid valve attached to the manifold block, and a ...  
WO/2012/033721A3
A hydraulic system and earth-moving vehicle employing the hydraulic system are disclosed. The hydraulic system may include a first hydraulic cylinder and a second hydraulic cylinder, first and second hydraulic pumps and control valves to...  
WO/2012/074145A1
Disclosed is a hydraulic pump control system for minimising flow loss by optimally limiting the discharge flow volume of the hydraulic pump when an upper swivel body is made to swivel abruptly. The hydraulic pump control system according...  
WO/2012/073110A2
A hydraulic fan circuit (10) is disclosed. The hydraulic fan circuit may have a primary pump (14), a high-pressure passage (26) fluidly connected to the primary pump, and a low-pressure passage (24) fluidly connected to the primary pump....  
WO/2012/071204A1
A hydraulic fan circuit (10) is disclosed. The hydraulic fan circuit may have a primary pump (14), a motor (18), a fan (20) connected to and driven by the motor, and a flywheel (28) connected to and driven by one of the motor and the fan...  
WO/2012/070703A1
Disclosed is a flow control valve for a construction machine, wherein a flow rate supplied to a hydraulic actuator is uniformly controlled by a flow rate control spool in a spool. According to the present invention, a flow control valve ...  
WO/2012/015679A3
A solenoid controlled valve (10) can have a valve body (12) with a fluid passage (14) extending at least partially through the valve body (12). A supply port (16) can be disposed through the valve body (12) and operably connected to the ...  
WO/2012/067276A1
Disclosed is a hydraulic cylinder with a variable cushion orifice, wherein the size of an orifice hole, which is provided for cushioning so as to reduce a shock generated at a stroke end of a cylinder rod, may be simply controlled from t...  
WO/2012/065692A1
The invention relates to a hydraulic valve device (1) having a fluid connection arrangement (3) extending at least partially in a valve housing (2) and containing connections such as a pressure medium supply connection (P), a return conn...  
WO/2011/141086A3
The invention relates to a hydraulic valve for exposing the supply pressure line of a hydraulic load supplied by a normal pressure source to a substitute pressure source. The invention should further develop the hydraulic valve so that t...  
WO/2012/064017A2
The present invention relates to an intensifier for discharging a constant flow. The intensifier of the present invention comprises a hydraulic pump, a hydraulic motor, a supply passage, first control means, and second control means. The...  
WO/2012/062493A1
The invention relates to a valve housing (31, 51) for a control valve of a camshaft adjuster, comprising a housing flange (33, 55) for fastening to a control unit, and a substantially cylindrical housing component (1, 53) for receiving a...  
WO/2012/030495A3
A semi-closed hydraulic system for use with heavy equipment includes a double-acting cylinder, a reservoir, first and second electric motors, first and second electric pumps, a pressure sensor, and a controller. The double-acting cylinde...  
WO/2012/057391A1
The present invention pertains to a flow path conversion valve, which comprises: a tubular body (3) having at least one or more inlets (13) for supplying fluid to the inside, two or more outlets (15, 16) for the selective crossover disch...  
WO/2012/055486A1
The invention relates to a hydraulic control block comprising a plurality of valve segments (2, 2',2") lying one on top of another, wherein a control piston (14) is arranged in each valve segment (2, 2', 2") and controls the inflow of hy...  
WO/2012/053672A1
Disclosed is a hydraulic system for a construction machine, which makes it possible to adjust the geometric position of a working device comprising a boom and an arm by means of a single manipulation lever, thereby enabling a leveling/fl...  
WO/2012/019622A8
A valve (10) includes a first valve housing portion (12) and a second valve housing portion (14). The first valve housing portion and the second valve housing portion are separate components attached together to define a valve housing. T...  
WO/2012/054453A1
A pilot regulator system includes a housing having a fluid inflow port, a ball valve to regulate fluid flow among two fluid outflow ports, two regulator outputs each associated with one of said two fluid outflow ports, and a regulator se...  
WO/2012/048963A1
The invention relates to a method for producing a hydraulic device (17), in which a least one hydraulic duct (90) and at least one connection (122) are produced and/or connected hydraulically to each other, wherein the hydraulic device (...  
WO/2011/149550A3
A double-sealed cross-port fitting for use in a series progressive divider valve comprises an adapter body, a passage and a ring segment. The adapter body extends axially from a first end to a second end and includes an adapter segment a...  
WO/2012/048179A2
A fluid mover includes a first dynamic armature attached to a flexible member and a second dynamic armature attached to a second flexible member. The fluid mover also includes a housing and first and second flexible members being attache...  
WO/2012/045547A1
Described is an apparatus (20) for controlling a hydraulic accumulator (10) of a hydraulic system (12), for example of a vehicle gearbox (14), having a valve device (26) by means of which an accumulator-side port (B) of the apparatus (20...  
WO/2012/045546A1
Described is an apparatus (20) for controlling a hydraulic accumulator (10) of a hydraulic system (12), for example of a vehicle gearbox (14), having a valve device by means of which an accumulator-side port (B) of the apparatus (20) can...  
WO/2011/149551A3
A series progressive divider valve comprises a valve body and pistons. The valve body comprises a fluid inlet, piston bores, outlet bores and porting. The fluid inlet extends into an exterior of the valve body. The piston bores extend th...  
WO/2011/149549A3
A series progressive divider valve comprises a valve body and pistons. A fluid inlet extend into the valve body. Stations are disposed in the valve body and extend from a first end to a second end; each station comprises piston stations ...  
WO/2012/037516A2
A valve actuator control system for use with a valve actuator may include two pump assemblies, two control valve assemblies, two transducers, a fluid reservoir, and a controller assembly. The controller assembly may actuate the pump asse...  
WO/2012/033830A1
An apparatus comprises a body, a first poppet, and a second poppet. The body comprises a first fluid channel and a second fluid channel. The first fluid channel and the second fluid channel are operable to be fluidly isolated from each o...  
WO/2012/031325A1
A pneumatic control for activation and control of hydraulic and/or pneumatic equipment; said control combining activation and control of at least a first hydraulic device by rotation of a first control element and control of a second hyd...  
WO/2012/033721A2
A hydraulic system and earth-moving vehicle employing the hydraulic system are disclosed. The hydraulic system may include a first hydraulic cylinder and a second hydraulic cylinder, first and second hydraulic pumps and control valves to...  
WO/2012/033233A1
The present invention pertains to a hydraulic pressure control device of a variable displacement type hydraulic pump for construction equipment, wherein operable sections of operation systems are formed in a wide manner while the hydraul...  
WO/2011/149548A3
A series progressive divider valve comprises a valve body and pistons. The valve body comprises a fluid inlet, piston bores, outlet bores, porting and undercuts. The fluid inlet extends into an exterior of the valve body. The piston bore...  
WO/2011/150010A3
A hydraulic system (34) for a machine (10) is disclosed. The hydraulic system may have a first pump (40) with variable displacement and being load- sense controlled, and a first hydraulic circuit (36) associated with the first pump. The ...  
WO/2012/028050A1
A compact two-way cartridge valve using a combined flange-controlled plate comprises the combined flange-controlled plate(1-1), a small normalized and miniaturized pilot control stage, and a miniaturized seat valve main stage (1-2); ...  

Matches 701 - 750 out of 8,687