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Patent Searching and Data


Matches 451 - 500 out of 8,687

Document Document Title
WO/2014/083493A1
Described herein is a valve assembly (1; 1') in particular designed for use in a pneumatic network (N) and comprising a first valve (2), a second valve (4), and a third valve (6). The second valve (4) and the third valve (6) are configur...  
WO/2014/079615A1
The invention relates to a method for producing a valve device (1) having a valve block (2) and at least one attachment part (3, 4) contacting a contact surface (7, 8) of the valve block (2), wherein the valve block (2) is produced by me...  
WO/2014/067640A1
Valve with a spool for the control of the start and of the stop of a hydraulic motor (17) in which an oblong spool (4) is mobile within an oblong seat (3) obtained in a body, the movement of the spool being controllable in two opposite d...  
WO/2014/067204A1
An expansion valve block, comprising: a first mounting side and an oppositely disposed second mounting side; a first control valve mounting area (10) disposed on the first mounting side, and comprising first control valve mounting area o...  
WO/2014/066592A1
A hydraulic valve is provided that includes an interior spool and a surrounding cage. A supply port and a return port are connected to the cage and the interior of the cage is in fluid communication with a control port. The interior spoo...  
WO/2014/061834A1
Disclosed is an automatic pressure control device for a construction machine for constantly maintaining an initially set pressure of a main relief valve which sets a maximum pressure of a hydraulic system. According to the present invent...  
WO/2014/056592A1
The invention relates to a valve block (10) comprising a plurality of main sliders (40), which are supplied in parallel with pressure fluid via a first and a second pump conduit (80; 81), the fluid stream, which flows in from the respect...  
WO/2014/048181A1
Disclosed is a modular combined electrohydraulic multi-way valve system using a compact two-way cartridge valve, comprising: two reversible controlled cavities which are controlled by two groups of, each group comprising two, compact two...  
WO/2014/047874A1
Disclosed is a proportional steering valve, comprising a directional control valve and a proportional throttle valve (4), wherein the directional control valve is at least provided with an oil inlet port (10), an oil return port (11), a ...  
WO/2014/051472A1
A hydraulic system for a work machine, comprising a first and a second hydraulic actuator: a first and a second hydraulic machine for providing hydraulic fluid to at least one of the first and the second actuator via a first and a second...  
WO/2014/037090A1
The invention relates to a fluidic actuator comprising a drive element (2) that can be supplied with a pressure fluid and a two-stage proportional position controller (3) controlling the supply with pressure fluid to the drive element, s...  
WO/2014/037089A1
The invention relates to a controlled three-way proportional valve unit comprising: a valve assembly with two individual valves; an actuating device actuating the individual valves of the valve assembly; and a control unit (21) acting up...  
WO/2014/034974A1
Disclosed is a hydraulic system for a construction machine which prevents a working fluid from being excessively supplied to a hydraulic actuator of a lower pressure due to a pressure difference between hydraulic actuators when working w...  
WO/2014/009011A3
The invention relates to a wind turbine with at least one pitch adjustment system for adjusting the pitch of at least one rotor blade of the wind turbine. The pitch adjustment system comprises at least one electrohydraulic drive which ha...  
WO/2014/036224A1
A hydraulic control system (50) includes an implement (16) movable to perform an excavation cycle having a plurality of segments, a variable displacement motor (49) configured to swing the implement (16) at a desired speed during the exc...  
WO/2014/036235A1
A hydraulic control system (50) is disclosed for use in a machine (10). The hydraulic control system may have a work tool (16), a motor (49) configured to swing the work tool, a tank (60), a pump (58) configured to draw fluid from the ta...  
WO/2014/034969A1
Disclosed is a hydraulic system wherein a driver first selects or disengages a function when performing, by way of example, an excavation operation or suspend operation using an excavator. The hydraulic system according to the present in...  
WO/2014/036232A1
A hydraulic control system (150) for a machine (10) is disclosed. The hydraulic control system may have a tank (64), a pump (53) configured to draw fluid from the tank and pressurize the fluid, an actuator (49), and a control valve (63) ...  
WO/2014/036229A1
A hydraulic control system (50) is disclosed for use with a machine (10). The hydraulic control system may have a tank (60), a pump (58), a swing motor (49), and at least one control valve (56) configured to control fluid flow between th...  
WO/2014/035984A2
The invention is directed to controlling a hydraulic actuation system (50) having at least one degree of freedom, a prime mover (101), at least one actuation module (110, 120, 130) and a controller (103), with each actuation module (110,...  
WO/2014/036226A1
An electro-hydraulic control system (22) manages speed of a hydraulic fan (17) by using a solenoid (25) to bias a three position pool (24) of a control valve (23) coupled to a hydraulic pump (30) driving the fan (17). In a first position...  
WO/2014/027706A1
The present invention relates to a hydraulic control valve for construction machinery that is used to maintain secondary pilot pressure which is formed proportionally to the switching of a switching device so as to be equal to or below a...  
WO/2013/192281A3
A variable flow valve with position feedback is disclosed. The variable flow valve includes a housing having an inlet port and a discharge port and one or more control ports, and also includes a piston connected to a primary valve to ope...  
WO/2014/019647A1
The invention relates to a valve, in particular a pilot-operated proportional directional poppet valve, having a valve housing (7) which has a fluid inlet (21) and a fluid outlet (23), wherein the fluid stream between the fluid inlet (21...  
WO/2014/022334A2
A hydraulic flow sensing apparatus is provided. The apparatus includes: a manifold; a hole in the manifold in fluid communication with a fluid pathway; a poppet valve in the hole in the manifold configured to move when fluid in the pathw...  
WO/2014/022202A1
A system can include one or more valve arrangements (12, 240, 242, 244, 246, 410, 510, 312, 314, or 316) with a working chamber (W) to receive a working fluid at a first pressure, and a control chamber (C) to receive fluid at a second pr...  
WO/2014/019648A1
The invention relates to a valve, in particular a pilot-operated proportional directional poppet valve, having a valve housing (7) which has a fluid inlet (21) and a fluid outlet (23), wherein the fluid stream between the fluid inlet (21...  
WO/2014/022152A1
A hydraulic system (56) is disclosed. The hydraulic system may have a pump (66) configured to draw low-pressure fluid from one of a first passage (68) and a second passage (70) and discharge fluid into the other of the first and second p...  
WO/2014/022534A1
A valve for selectively fluidly communicating a first fluid volume and a second fluid volume includes a valve body, an inlet orifice in fluid communication with the first fluid volume, and an outlet aperture in fluid communication with t...  
WO/2014/018606A1
A fluid sensing and distributing apparatus having a distribution plate and an indexing plate is provided. The distribution plate may include a first distribution face and a second distribution face and a plurality of ports extending betw...  
WO/2014/017685A1
Disclosed is a hydraulic system capable of reducing the discharge flow rate of a hydraulic pump during the operation of a relief valve in the hydraulic system having the relief valve. The hydraulic system for a construction machine accor...  
WO/2014/014146A1
Disclosed is a flow control valve for construction machinery, the flow control valve being adapted to reduce pressure loss due to flow on return to a hydraulic tank during the boom-down operation of a large-scale excavator. The flow cont...  
WO/2014/014131A1
Disclosed is a method for controlling a hydraulic system for minimizing a loss of pressure by expanding the open area of a joining spool if a work device such as a boom or the like operates autonomously. The present invention provides a ...  
WO/2014/009977A1
A valve unit (1,100) for controlling the fluid supply of an actuator (2) of a mobile device (3) comprises a unit body (10), at least two valve seats (12) with an axial extension made in said unit body, and at least two valves (14a, b) ho...  
WO/2014/009543A1
The invention relates to a control device (16) that includes a valve (26) including a body (30) connected to the first chamber (22) of a cylinder (6) via a first hydraulic connection (32) and to the second chamber (24) of the cylinder (6...  
WO/2012/095561A3
A directional valve for controlling an actuator by means of pressurized medium, the directional valve comprising: a spool (4) fitted to move axially inside the directional valve; a first position of the spool (4), in which the spool tend...  
WO/2014/005396A1
A hydraulic system and excavator comprising same, the hydraulic system comprising a proportional directional valve assembly for controlling a first movement mechanism requiring speed regulation to work, and a switching directional valve ...  
WO/2014/004829A1
A rotary fluid pressure device includes a housing section defining an inlet port and a return port. A valving assembly is in fluid communication with the inlet port and the return port. A first fluid meter defines a plurality of volume c...  
WO/2014/004389A1
A fluid system includes a loading arm connected to a swivel joint. A counterbalance mechanism is connected between the loading arm and the swivel joint. An adjustment mechanism adjusts the counterbalance force applied by the counterbalan...  
WO/2013/192003A1
A solenoid valve is provided having a hydraulic body with an undulated expansion artery to prevent an exchange of fluid between an interior of the hydraulic body and the exterior of the solenoid valve.  
WO/2013/188035A1
A hydraulic system for an access arrangement having a platform configured for movement between a deployed position and a stowed position, the hydraulic system including: at least one hydraulic power unit configured to urge hydraulic flui...  
WO/2013/184539A1
A hydraulic system (50) includes a hydraulic actuator (30), a pump (54) configured to supply fluid to the hydraulic actuator (30), and a first accumulator (72) fluidly connected to the hydraulic actuator (30). The first accumulator (72) ...  
WO/2013/180428A1
The present invention relates to a pressure-control-type independent flow control hydraulic system for excavators, and the aim is to provide a pressure-control-type independent flow control hydraulic system for excavators wherein electro...  
WO/2013/174489A1
The invention relates to a valve (18) for a valve assembly (10) for regulating the pressure of a fluid guided in a hydraulic system for supplying pressure to at least one hydraulic consumer (12a, 12b), comprising a pilot control stage (4...  
WO/2013/176003A1
This control device is provided for use in industrial vehicles that are equipped with: a cargo loading platform; an actuator for driving the cargo loading platform; a hydraulic circuit that supplies hydraulic fluid to the actuator and th...  
WO/2013/176298A1
Disclosed is a hydraulic system for performing land preparation works by means of a simultaneous boom-up and arm-in operation. The hydraulic system according to the present invention includes: an arm cylinder and a boom cylinder that are...  
WO/2013/172520A1
A solenoid valve includes a valve configured to control a flow of a fluid; and a solenoid configured to operate the valve. The valve includes a pipe-like holder; a supply chamber, a control chamber and an exhaust chamber formed in the ho...  
WO/2013/171193A1
In order to facilitate side extraction of the roller holder cartridge (3) in a rolling mill stand (100), the strokes of the hydraulic capsules needed to take the pistons of the same clear from the trajectory traveled by the roller holder...  
WO/2013/168834A1
Disclosed is a hydraulic system which can convert a quantity of the fluid discharged from a pilot pump into a pilot signal pressure or return same directly to a hydraulic tank by operating a manipulation lever or not. The present inventi...  
WO/2013/168723A1
In a solenoid valve system (10, 10a, 100, 200, 300, 300a), a plurality of first through third solenoid valve units (14a to 14d, 16a to 16d, 18a to 18d) are divided into a plurality of first through third groups (14, 16, 18). In this case...  

Matches 451 - 500 out of 8,687