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Patent Searching and Data


Matches 451 - 500 out of 8,628

Document Document Title
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...  
WO/2013/160188A1
A method for manufacturing a fluid-leading component comprises the positioning of a base element (2) machined by means of a material-removing method with a planar upper face (8) in a mounting support and the multiple carrying out of proc...  
WO/2013/158079A1
In general, systems and methods for controlling work machine implements are described. In one embodiment, a system for controlling a hydraulically-powered third-party work machine implement includes a microcontroller-based conversion mod...  
WO/2013/157672A1
Disclosed is a hydraulic system provided with pressure compensating valves to improve controllability during combined operation of controlling both pivot motion and work equipment. A hydraulic system for construction equipment according ...  
WO/2013/143269A1
Disclosed is a valve bank (1), having a pressure oil port (1P), an oil returning port (1T), a first working oil port (1A), and a second working oil port (1B), and comprising a four-way reversing valve (11) and a two-position two-way reve...  
WO/2013/143799A1
The invention relates to a gas regulating unit (100) of modular construction, in particular for regulating the amount of gas to be supplied to a gas burner, and to a gas regulating valve (1) which, as a whole, is in the form of a module ...  
WO/2013/145819A1
A servo regulator which moves a servo piston on the basis of operating fluid pressures in two pressure chambers is provided with: a sleeve which is inserted in an insertion hole formed in a case and which has a supply port capable of sup...  
WO/2013/148474A1
Methods and apparatus for shared gas panel for supplying a process gas to a plurality of process modules are disclosed. The shared gas panel includes a plurality of mixing valves and at least two mixing manifolds for a given mixing valve...  
WO/2013/143520A1
The present invention relates to a valve for a hydraulically operated percussion mechanism having a main valve (2, 102) which is in the form of a rotary slide valve having a rotary slide. In order to reduce the installation space and the...  
WO/2013/090728A3
A spool valve (100) includes a body (102) defining a bore (104) and a positionable spool (106) located within the bore. The spool includes a central body portion (112) having a diameter and a number of sealing lands (118) separated by th...  
WO/2013/126105A1
The improved servovalve broadly (20) includes: a body (21) having an axis of elongation (y-y), a portion of the body defining a cylinder (43) having an axis (x-x) substantially perpendicular to the body axis; a valve member (44) movably ...  
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/2013/004388A3
A valve is proposed for controlling a hydropneumatic device for pressure transmission with a working plunger and a transmitter plunger for pressure transmission, wherein the transmitter plunger is designed to move the working plunger hyd...  
WO/2013/122899A1
- A sealed anchoring dowel for a supporting material - The anchoring dowel adapted for being introduced in a supporting material, going therethrough, comprises an axial through-hole (6, 6.1) for receiving a member for fastening a part to...  
WO/2013/098800A4
A valve positioner system (12) with zero bleed at steady state is disclosed. The system has a pilot valve (30), the operation of which is controlled by an electronic circuit (34) powered from a signaling and power connection of a positio...  
WO/2013/119240A1
A valve (210) comprising a motor (221) having an output shaft (231) orientated about a motor axis (230), a hydraulic valve having a drive spool (224) configured to move from a first position to a second posiĀ¬ tion, a mechanical linkage ...  
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/2012/083577A8
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/2013/087156A3
Disclosed is a pressure limiting valve arrangement having a pressure limiting valve, preferably a low-pressure limiting valve, having a valve body, onto the first control surface of which a system pressure to be limited is applied in the...  
WO/2013/111948A1
The present invention relates to a hydraulic pressure control device for the combined operation of an optional device and a front operation device of construction machinery. The hydraulic pressure control device comprises: a plurality of...  
WO/2013/111950A1
The present invention relates to a hydraulic pressure control device for a swing motor for construction machinery. The hydraulic pressure control device for a swing motor according to the present invention is controlled to open a bypass ...  
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/2013/106131A1
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/2013/048855A3
A position-adjustable, dual-pod control system (130) for a machine, such as a backhoe loader (1) is disclosed. The system (130) includes a horizontal cross beam (136) connected to a pair of brackets (142). The pair of brackets (142) are ...  
WO/2013/106416A1
Quick connect fluid connectors are described that can be used to connect a first fluid system to a second fluid system for transferring fluids between the first and second fluid systems. The connectors include an eccentric mounted roller...  
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/2013/100458A1
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 ...  

Matches 451 - 500 out of 8,628