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Patent Searching and Data


Matches 801 - 850 out of 8,647

Document Document Title
WO/2011/068982A2
A hydraulic reservoir includes a container having an internal volume, an internal wall dividing the internal volume of the container into a first section and a second section for separately containing the hydraulic fluid, and two one-way...  
WO/2011/043867A3
A control system for a variable displacement hydraulic pump is disclosed. The control system utilizes two flow control valves to provide a flow of hydraulic fluid to two control actuators. The control actuators create opposing moments on...  
WO/2011/019644A3
An actuator and counterbalance system including a nonmobile carrier; a mobile carrier, mobile relative to the non mobile carrier; and a counterbalance system in operable communication with the mobile carrier and configured to counterbala...  
WO/2011/061323A1
The invention relates to a valve arrangement for actuating a piston cylinder arrangement (13), comprising a pilot control valve arrangement and a main control valve arrangement, wherein both the pilot control and main control valve arran...  
WO/2011/057542A1
A multi-way valve includes a plurality of parallel combination valves for controlling corresponding actuators (4-1-4-5). Each combination valve comprises a proportion throttle valve (2-1-2-5) and a reversing valve (3-1-3-5). An oil inlet...  
WO/2011/057493A1
A hydraulic system for a rotary drilling rig includes a main hydraulic circuit, which includes a hydraulic pump (3), a hydraulic execution component (140) and a reversing valve (9) connected between the hydraulic pump (3) and the hydraul...  
WO/2011/056302A2
An electro-hydraulic control system for pump (22) control is disclosed. The hydraulic actuator (50) is configured to control the inclination of a swashplate. The position of the hydraulic actuator (50) is controlled by controlling the fl...  
WO/2011/051752A1
The invention relates to a hydraulic pilot control arrangement (16) for a spool valve (14), wherein the spool of the spool valve (14) is biased towards a central position, wherein the arrangement comprises a first and a second pilot hydr...  
WO/2011/028976A3
A control valve (10) comprising a plurality of interchangeable valve body modules (12), each module having a main valve cavity (22) and a plurality of separate cross valve communication ports (26a-d) communicating; and at least one inter...  
WO/2010/144804A3
A system for positioning a device such as a valve with a mechanical input using a fluid operated actuator, a mechanical position feedback member coupled to a feedback element of the fluid operated actuator and an activation fluid valve. ...  
WO/2011/044870A1
The invention relates to a hydraulic pump arrangement, comprising an electrically driven hydraulic pump (2), which is connected on the outlet side to a hydraulic system (12) having a system pressure by means of a hydraulic valve (10, 32,...  
WO/2011/047375A2
A spool for a servo valve. The spool includes a first end land and a second end land. The spool includes an intermediate land having a first side and a second side opposite the first side. The intermediate land is positioned between the ...  
WO/2011/043867A2
A control system for a variable displacement hydraulic pump is disclosed. The control system utilizes two flow control valves to provide a flow of hydraulic fluid to two control actuators. The control actuators create opposing moments on...  
WO/2011/041410A2
Hydraulic systems (40) and methods for using such systems in a variety of machinery (100), including but not limited to machines having multiple functions performed by one or more hydraulic circuits. The systems (40) enable valves (50,52...  
WO/2011/037612A2
A hydraulic manifold has features adapted to the needs of hybrid vehicle applications. In one embodiment, multifunction valves selectively regulate fluid flow among primary and auxiliary flow paths. A normally closed butterfly valve is b...  
WO/2011/034760A2
A tensioner system for an engine including at least one driven sprocket, at least one driving sprocket, a chain, and a tensioner for tensioning the chain. The damping of the tensioner is actively controlled by a valve that allows fluid t...  
WO/2011/031851A2
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 usage value for each of the plurality of ...  
WO/2011/026947A1
A four-path and three-position distribution valve (1) that controls a hydraulic actuator (A, B) in an operating machine, comprises a valve body (2) in which a pressure compensator (8, 15) is integrated that maintains the fluid flow const...  
WO/2011/027192A1
A control device (20) for controlling a speed of a hydraulic motor (22) includes a housing (26) defining a first void (28). A speed valve (30) is disposed within the first void (28) and is moveable between a first speed valve position (9...  
WO/2011/022267A2
A microvalve device is disclosed for controlling fluid flow in a fluid circuit. The microvalve device comprises a body having a bore formed therein. A pilot- operated main valve spool supported by the body is movably disposed in the bore...  
WO/2011/019644A2
An actuator and counterbalance system including a nonmobile carrier; a mobile carrier, mobile relative to the non mobile carrier; and a counterbalance system in operable communication with the mobile carrier and configured to counterbala...  
WO/2011/009870A1
A control arrangement for use in a hydraulic control system including a control valve of the type having at least two movable elements, such as spools or poppets, adapted to control the main flow through the valve, and further comprising...  
WO/2011/009527A1
A hydraulic circuit arrangement for controlling a double-acting working cylinder by means of a multi-way valve of piston-slide-type design is characterized in that the multi-way valve (17) is a standardized valve with five individual por...  
WO/2011/006465A1
The invention relates to a hydraulic system comprising a pressure reducer designed as a sliding valve with positive engagement, comprising a tank connection, a system pressure connection and a working pressure connection that can be conn...  
WO/2011/003210A1
The invention relates to an arrangement for providing a throttle cross-section (1) for a fluid flow. The throttle cross-section (1) can be varied depending on a pressure difference present across said throttle cross-section. The arrangem...  
WO/2011/000515A1
The invention discloses a pilot-controlled valve having a main stage and a pilot stage. The main stage has a directional valve which is designed for example as a seat valve or slide valve. Such a directional valve has at least one contro...  
WO/2010/151220A1
A method and a device for controlling a load sensing hydraulic system, having a bypass valve (F), which is controlled by a pump pressure (P) and which when the hydraulic system is in operation diverts a pump flow of hydraulic fluid to a ...  
WO/2010/151219A1
The present invention relates to a hydraulic auxiliary valve device (1) adapted to be connected to a hydraulic main valve (20) on a work vehicle, which work vehicle comprises a hydraulic system comprising a pump and a tank, the auxiliary...  
WO/2010/151218A1
The invention relates to a hydraulic valve device (1) including a high pressure connection (P') and a low pressure connection (T'); at least one motor port connection (A') that is connectable to a motor port (A) on a hydraulic motor (M),...  
WO/2010/144804A2
A system for positioning a device such as a valve with a mechanical input using a fluid operated actuator, a mechanical position feedback member coupled to a feedback element of the fluid operated actuator and an activation fluid valve. ...  
WO/2010/142419A1
The invention relates to a modular control system for fluidic control devices, comprising a display and/or operating unit (20) with an inductive interface. The display and/or operating unit can be detachably connected to a fluidic contro...  
WO/2010/118887A4
The present invention relates to a hydraulic valve array comprising a CAN bus circulation valve. In particular, a hydraulic valve array is provided, comprising a plurality of modularly joined valve sections (S1 - S5, Sx), of which at lea...  
WO/2010/141621A1
A valve system is provided including a first valve having a first inlet port and a first exit port. The first valve is moveable between a first position, in which the first inlet port is fluidly connected to the first exit port, and a se...  
WO/2010/141625A1
A valve manifold includes a first exit port and a second exit port, and a first valve having a first member and a second member movable relative to the first member between a first position and a second position. The first member includi...  
WO/2010/141733A1
A method of valving a fluid device (12) includes receiving a signal that is correlated to a displacement of a volume chamber of a displacement assembly of a fluid device. A check ball (96) is delatched from a magnetic pole (70) of a firs...  
WO/2010/133271A1
The invention relates to a directional control valve arrangement having a valve slide for controlling the pressure medium connection between a pressure connection, and tank connection, and two consumer connections. In a regeneration mode...  
WO/2010/134001A1
The invention relates to a hydraulic switching mechanism (10) for the mobile hydraulics of, for example, hydraulic excavators, with a valve block, with electrohydraulically activatable valve units for controlling the movement of a workin...  
WO/2010/130334A1
The invention relates to a hydraulic valve device (1) having a fluid connection arrangement (10) comprising a multiplicity of fluid connection points which can at least partially be actuated by means of a control device (18). As a result...  
WO/2010/129669A1
Valve positioner isolation apparatus (40) and methods facilitate isolation of one or more compressible fluid control circuits (S, O1, O2, e.g., in pneumatic control systems) from their associated valve positioner (80), so that compressib...  
WO/2010/127744A1
The invention relates to a hydraulic system, particularly in a high-pressure application, comprising a pressure medium tank (1), a pressure medium pump (4) driven by a drive unit, at least one hydraulic load to which said pressure medium...  
WO/2010/127760A1
The invention relates to a check valve designed as a seat valve having a main valve body (6) in which a pilot valve (23) having a pilot valve body (30) and a pressure limiting valve (46, 50) are disposed. The pressure limiting valve is t...  
WO/2010/075335A3
An apparatus for determining the weight of a payload (44) in a bucket (24) of a machine (20) where the bucket (24) is attached to a chassis (26) of the machine (20) by a linkage. The apparatus comprises an energy storage device (82) for ...  
WO/2010/124763A1
The invention relates to a proportional throttle valve comprising a valve piston (2) which is displaceably guided in the longitudinal direction in a valve housing (3) having a fluid inlet (4) and a fluid outlet (5) and is pretensioned by...  
WO/2010/118887A1
The present invention relates to a hydraulic valve array comprising a CAN bus circulation valve. In particular, a hydraulic valve array is provided, comprising a plurality of modularly joined valve sections (S1 - S5, Sx), of which at lea...  
WO/2010/118798A1
The invention relates to a valve device for the fluid supply of fluid consumers, comprising several valve modules (2) arranged next to each other in the direction of stacking (3). Said valve modules (2) respectively comprise a plate-shap...  
WO/2010/118797A1
The invention relates to a valve device for the fluid supply of fluid consumers, comprising several valve modules (2) arranged next to each other in the direction of stacking (3). Said valve modules (2) respectively comprise a plate-shap...  
WO/2010/118802A1
The invention relates to a fluidic system having a valve device for the fluid supply of fluidic loads, which has a plurality of valve modules (2); the valve modules (2) in each case comprise a channel element (11) and four 2/2-way valves...  
WO/2010/118808A1
The invention relates to a valve device for the fluid supply of fluid consumers, comprising several valve modules (2) arranged next to each other in the direction of stacking (3). Said valve modules (2) respectively comprise a plate-shap...  
WO/2010/118800A1
The invention relates to a valve device for supplying fluid to fluid consumers, comprising several valve modules (2) which are arranged in rows next to each other in the direction of stacking (3). Said valve modules (2) respectively comp...  
WO/2010/118811A1
The invention relates to a valve device for the fluid supply of fluid consumers, comprising several valve modules (2) arranged next to each other in the direction of stacking (3). Said valve modules (2) respectively comprise a plate-shap...  

Matches 801 - 850 out of 8,647