| Document |
Document Title |
|
WO/2015/073309A1 |
Apparatus to bias spool valves using supply pressure are disclosed. An example apparatus includes a housing (106) of a spool valve, the housing including a first port (118) to receive a fluid at a supply pressure. The example apparatus f...
|
|
WO/2015/073329A1 |
A hydraulic system (600) and method for reducing boom dynamics of a boom (30), while providing counter-balance valve protection, includes a hydraulic actuator (110), first and second counter-balance valves (300, 400), first and second co...
|
|
WO/2015/071675A2 |
A servo valve (1) for use with an actuator. The servo valve comprises a first set of internal ports (4) including a first inlet port (4a), a first outlet port (4c), a first A-control port (4b) and a first B-control port (4d) and a second...
|
|
WO/2015/068179A1 |
Booster valve (4) for pneumatic circuits, comprising: a hollow body (5), a pilot flow inlet/outlet gap (15) communicating directly with a control volume (16), an inlet/outlet gap (45) communicating with an actuator and communicating dire...
|
|
WO/2015/064785A1 |
Disclosed is a hydraulic circuit for construction equipment, having a floating function for ground leveling work, which can be implemented by a main control valve. According to the present invention, provided is a flow control valve for ...
|
|
WO/2015/064782A1 |
The present invention relates to a hydraulic system of construction equipment, having a float function, comprising: a hydraulic pump and a pilot pump for supplying hydraulic oil for the operation of construction equipment; a remote contr...
|
|
WO/2015/061382A1 |
A system, method, and computer readable medium for controlling a remote valve and facilitating temporarily driving or activating a battery-powered pilot valve assembly to place an operatively coupled output valve in a switch position. On...
|
|
WO/2015/061385A1 |
A system and method for controlling a remote valve includes temporarily driving or activating a battery-powered pilot valve assembly to place an operatively coupled output valve assembly in a switch position. A processor energizes a bist...
|
|
WO/2015/055276A1 |
The invention relates to a control device, in particular for hydraulically controlling components of mobile working machines, consisting of at least one pressure supply connection (P) and a tank or return connection (T) in addition to tw...
|
|
WO/2015/051294A1 |
This disclosure includes hydraulic apparatuses and methods for redundant actuation of a hydraulic device. Some apparatuses include a hydraulic device having a first hydraulic actuator and a second hydraulic actuator, wherein each of the ...
|
|
WO/2015/043377A1 |
An auxiliary hydraulic system and a concrete pumping device. The auxiliary hydraulic system comprises a main oil pump (1), a stirring motor (7), a water-cleaning motor (9), a first reversing valve (6), and a second reversing valve (8). A...
|
|
WO/2015/039734A1 |
The invention relates to a valve device (200) comprising at least one tank pressure port (218), a first pressure port (212), a second pressure port (214), and a pressure shut-off valve (224), which is switched between the individual port...
|
|
WO/2015/041945A1 |
A rotary valve comprises a bushing and a cylindrical spool rotatably received by the bushing. The rotary valve avoids redundant control edge pairs by having exactly one first supply edge pair (P-Cl) for controlling a first fluid supply p...
|
|
WO/2015/032470A1 |
A load-holding valve (1) having at least one main control piston (39) which is guided longitudinally displaceably in a single-piece or multiple-piece valve housing (29) and a non-return piston (43), wherein, in switching positions, in th...
|
|
WO/2015/032492A2 |
The invention relates to a first valve component (10), in particular a pressure compensator-type component, comprising a valve slide (16) that can be guided in a valve housing (12) in a longitudinal direction, said valve slide having a c...
|
|
WO/2015/028112A1 |
A valve, in particular proportional pressure regulating valve, having a valve piston (12) which is guided in longitudinally movable fashion in a valve housing (10) and which can be actuated by means of an operation device (14), wherein t...
|
|
WO/2015/025094A1 |
The reversible hydraulic pressure converter with tubular valves (1) comprises a medium-pressure stage (44) consisting of a medium-pressure cylinder (2) and a medium-pressure double-acting piston (3), the position of which is transmitted ...
|
|
WO/2015/024152A1 |
Disclosed is an energy-recycling hydraulic control main valve, which is provided with end covers (1), a valve core (2), a left one-way valve (3) and a right one-way valve (4), wherein each of the two ends of the valve core (2) is provide...
|
|
WO/2015/022135A1 |
The invention relates to a valve apparatus having a primary valve (22) and a pilot valve (25), which comprises a closing body (42), which can be actuated by a magnet apparatus having an armature (30), in order to connect a first pressure...
|
|
WO/2015/023010A1 |
Disclosed is a flow control valve for construction equipment capable of effectively operating travelling and working apparatuses when the construction equipment performs complex work by operating the working apparatus while travelling. T...
|
|
WO/2015/018730A1 |
The invention relates to an intermediate plate (30) for installing between two channel sides (24, 26) of housing parts (12, 14) of a controller for loads operated by a pressure medium, which channel sides can be laid against the intermed...
|
|
WO/2015/015155A1 |
A servovalve pilot stage assembly is provided having a first fluid conduit (152) having a first orifice (156), a second fluid conduit (154) having a second orifice (158), a flapper (44) having a deformable first region (176) disposed bet...
|
|
WO/2015/014887A1 |
A valve having a valve piston (13) which can be moved linearly in a valve housing (10) and a linear drive (20) which comprises a stator (21) which is connected immovably to the valve housing (10) and a rotor (22) which can be moved there...
|
|
WO/2015/015154A1 |
A servovalve has a pilot stage (100) having a piezoelectric element (150) actuating a pilot stage spool valve (196), which pilot stage spool valve comprises an output control fluid line to a main stage.
|
|
WO/2015/012423A1 |
Disclosed is a hydraulic circuit for a construction machine, for preventing the loss of pressure at the time of complex work. A hydraulic circuit for a construction machine, according to the present invention, comprises: variable displac...
|
|
WO/2015/009922A1 |
Embodiments of a directional valve assembly (300) that provides a single device with functionality of a two-position design for automated operation and functionality of a three-position design for manual operation. The embodiments can in...
|
|
WO/2015/007566A1 |
The invention relates to a valve device, comprising a main valve (2) and a pilot valve (3), which comprises a closing element (28), which can be actuated by a magnet device having an armature (30) in order to connect a first pressure con...
|
|
WO/2015/007565A1 |
The invention relates to a valve device having a main valve (2) and a pilot valve (3), said pilot valve comprising a closing body (28) which can be actuated by a magnet device having an armature (30), so as to connect a first pressure po...
|
|
WO/2015/004249A1 |
PROBLEM: To provide a working vehicle traveling by an operation, the operation chosen by operators from either an oil-pressured pilot operation which drives a traveling device based on an operation of an oil-pressured pilot controller to...
|
|
WO/2015/005856A1 |
The invention relates to an actuator for axial displacement of an object. The actuator comprises an actuator piston disc that is displaceable in a cylinder volume, an inlet channel (11), a first inlet valve body (15) arranged in the inle...
|
|
WO/2015/000495A1 |
The invention relates to a valve (1), which comprises at least one seal ring (7) arranged in a recess (3) of a valve housing (2), which seal ring has a seal housing (25) having a U-shaped cross-section, in which an annular sealing elemen...
|
|
WO/2015/000496A1 |
The invention relates to a valve (1), which has at least one seal ring (7) arranged in a recess (3) of a valve housing (2), which seal ring has a seal housing (25) having a U-shaped cross-section, in which seal housing an annular sealing...
|
|
WO/2014/208796A1 |
The present invention relates to a hydraulic pressure control device for construction machinery, comprising: a pilot pump; a swing motor for rotary-actuating an upper turning body; a brake control valve for controlling the direction of a...
|
|
WO/2014/208828A1 |
Disclosed are a hydraulic circuit for using a hydraulic fluid in a hydraulic pump in another hydraulic actuator, during levelling and grading work by means of an excavator, and a method for controlling a floating function. A hydraulic ci...
|
|
WO/2014/208787A1 |
Disclosed are a device for controlling a control valve of a construction machine, a method for controlling the same, and a method for controlling the discharge flow rate of a hydraulic pump, for the purpose of controlling the spool switc...
|
|
WO/2014/208795A1 |
Disclosed are a hydraulic circuit for using a hydraulic fluid in a hydraulic pump in another hydraulic actuator, during levelling and grading work by means of an excavator, and a method for controlling a floating function. A hydraulic ci...
|
|
WO/2014/205955A1 |
A modular electro-hydraulic multiway valve employing novel combined slide valve and MINISO CV, comprising a group of one combined three-way slide valve main stage (1-1-0) and a group of two MINISO CV valves main stage (2-1-1-0) with a ca...
|
|
WO/2014/199158A1 |
A method for producing a manifold is disclosed, wherein an additive manufacturing process is used to produce the manifold.
|
|
WO/2014/199157A1 |
A servo valve (1) comprises a fluid inlet (50), a fluid outlet (52) and a cylindrical spool (8). The spool (8) has a surface including a curvilinear groove (11) and is mounted for rotational movement between a first position in which the...
|
|
WO/2014/200131A1 |
Disclosed is a flow rate control valve for a construction machine for controlling operating oil supplied from a hydraulic pump to a hydraulic actuator. A flow rate control valve for a construction machine according to the present inventi...
|
|
WO/2014/195040A1 |
A hydraulic system (1) is provided comprising a group of at least two valves (2a, 2b, 2c) connected to a bus (8), each of said valves (2a, 2b, 2c) comprising a primary memory (9a, 9b, 9c) for storing a set of parameters of the valve (2a,...
|
|
WO/2014/183149A1 |
A diaphragm pump (10) including a body (11) that provides a pair of opposed pump chambers (12) and (13). Mounted in the body (11I) is a piston assembly (14) providing a pair of pistons (15) joined by a transverse piston rod (16) so that ...
|
|
WO/2014/186201A1 |
The present disclosure relates to a valve arrangement (60) for a boom control system (30) or for other control systems for work machine (10) components that may be lowered under gravity. The problem addressed is the prevention of the boo...
|
|
WO/2014/173102A1 |
A pre-tensioning-pre-twisting full-bridge 2D electro-hydraulic proportional directional valve. Two ends of a 2D valve each are connected with a linear electro-mechanical converter (2, 16) through a pressure-torsion coupling and a spring....
|
|
WO/2014/158249A1 |
A control system valve assembly includes a valve port (221), a valve stem (230) in the valve port, and an actuator (240) connectable to the valve stem and actuable to control a flow of hydraulic fluid through the valve port. A method for...
|
|
WO/2014/157946A1 |
The present invention relates to a hydraulic system for construction equipment and, more specifically, to a hydraulic system of which an actuator is controlled by a pump/motor. The hydraulic system for construction equipment according to...
|
|
WO/2014/148855A1 |
The present invention relates to a method for controlling a hydraulic system of construction machinery. The method for controlling a hydraulic system of construction machinery according to the present invention comprises an engine RPM pr...
|
|
WO/2014/148748A1 |
The present invention relates to an apparatus for controlling a hydraulic pump for a construction machine. The apparatus for controlling a hydraulic pump for a construction machine according to the present invention comprises: a hydrauli...
|
|
WO/2014/142562A1 |
The present invention relates to a hydraulic system for a construction machine, and more particularly, to a hydraulic system for a construction machine including a plurality of actuators. Each of the actuators has a pump/motor, is operat...
|
|
WO/2014/135285A1 |
An object of the present invention is to solve such problems associated with installing of a spool-type regenerative valve, in that an overall installation space of a hydraulic valve increases and processing that requires accuracy become...
|
