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Matches 1 - 50 out of 8,628

Document Document Title
WO/2020/061343A1
A hydraulic control valve can be one type of a variable characteristic (e.g., coil voltage). A visual identification system is provided to permit the visual identification of the specific type of the variable characteristic that the cont...  
WO/2020/057072A1
Disclosed is a threaded insertion type rotary direct-drive electro-hydraulic servo valve with a harmonic speed reducer. A direct-current brushless servo motor (1) and a harmonic speed reducer (3) are used as an electromechanical conversi...  
WO/2020/060698A1
An example valve includes: (i) a pilot seat member comprising: (a) one or more channels fluidly coupled to a first port of the valve, (b) a pilot seat, and (c) a pilot sleeve portion comprising a pilot chamber and a cross-hole disposed i...  
WO/2020/056395A1
A fluid system includes a fluid control assembly in fluid communication with a fluid source in fluid communication with a fluid supply port and the fluid control assembly is in fluid communication with an actuator via an outlet port. A c...  
WO/2020/053577A1
A prime mover and a plurality of hydraulic actuators, a hydraulic machine having a rotatable shaft in driven engagement with the prime mover and comprising a plurality of working chambers, a hydraulic circuit extending between a group of...  
WO/2020/048696A1
The invention relates to a control module (1) for an air treatment system of a utility vehicle, wherein the control module (1) comprises the following: a first and second pneumatic magnetic valve (4, 14) having a first or second coil (5,...  
WO/2020/044175A1
A diagnostic method to diagnose a malfunction of a solenoid valve comprises: a) detecting the first current peak (IPEAK) of the solenoid current generated by the engagement of the movable core; b) verifying if the waveform of the solenoi...  
WO/2020/032881A2
Invention valve; Directional control valve with three conical populations. Three conicalpopicles (Pt) connected to each other within the valve body (Pt) open two flow paths with the righ taxi almovement of the left (M) (Pt) and close the...  
WO/2020/010635A1
Disclosed are a hydraulic control system and method for a large-angle slewing mechanism. The large-angle slewing mechanism comprises multiple hydraulic cylinders, with output ends of the multiple hydraulic cylinders being pivotally conne...  
WO/2020/013358A1
In a hydraulic machine, first travel control valve 6 and a first attachment control valve 7 are in fluid communication with a second hydraulic source 33. A confluence control valve 3 is in fluid communication with a first hydraulic sourc...  
WO/2019/242116A1
A rotation control valve group, a rotation control system and a crane. The rotation control valve group (3) has an oil inlet opening (P), an oil discharge opening (T), a first working oil opening (A) and a second working oil opening (B),...  
WO/2019/238519A1
The invention relates to a safety valve (1) with an electronic control unit (2) for generating a control voltage, an electro-fluidic preliminary stage (3) that has a piezo bending actuator (4) which can be actuated between a working posi...  
WO/2019/238534A1
A control device for controlling a hydraulic consumer (2), such as a working cylinder, consisting of at least one control valve (18) having a control slide (20), which is guided in a longitudinal displaceable manner in a valve housing (2...  
WO/2019/238682A1
The present disclosure relates to a hydraulic valve arrangement comprising a first pilot operated proportional directional control valve (10) having a first valve member (11) that is displaceable in a first and a second axial direction (...  
WO/2019/235940A1
The invention broadly relates to a pneumatic pumping system to pump at least one fluid from one location to another and, in some forms, to mix fluids together. The system comprises a programmable electronic controller, a data source, a p...  
WO/2019/226937A1
A system and method for providing redundancy in hydraulic circuits in multi-cycle hydraulic tools is described. The problems of dysfunctional hydraulic tool due to the failure of electromechanical actuators are addressed by providing red...  
WO/2019/224426A1
Hydraulic valve (1, 1') comprising an on/off seat-type main valve with two ports comprising a displaceable poppet (10) for opening and closing the main flow channel (8, 9); an on/off seat-type pilot valve with three ports, with a magneto...  
WO/2019/219492A1
The invention relates to a valve having a valve housing (12) which has at least one pressure supply connection (P), a first service connection (A), a second service connection (B) and a return connection (T1, T2) and in which a control s...  
WO/2019/219491A1
The invention relates to a valve, characterized in that, between a neutral position (38) of a control slide (STS) and one of the end positions (34, 42) thereof, a regeneration position (36), in which two utility connections (A, B) are co...  
WO/2019/219489A1
The invention relates to a control device for a hydraulic consumer which is susceptible to vibrations, comprising a valve (24) having a control spool (40) which can be actuated by means of an actuation apparatus (46). The valve (24) has ...  
WO/2019/214887A1
Valve arrangement for supplying a hydraulic consumer with pressure medium, which valve arrangement has two working connectors (A, B) for the fluid connection to the consumer, with a first control valve which - has a first feed line (24),...  
WO/2019/215883A1
A throttle check valve (26) comprises: a poppet valve body (31) on one end of which an orifice (32) is formed, and on a side of which holes (35) are formed; a plug (33) that has a tubular shape surrounding this poppet valve body (31), an...  
WO/2019/210341A1
The invention relates to a hydraulic system, more particularly for a lifting device, comprising: - at least one piston-cylinder assembly (1) for applying a force to at least one movable component, the at least one piston-cylinder assembl...  
WO/2019/201579A1
In a mobile stretcher, in order to change the height position of a patient support mounted on a chassis, the geometry of the chassis is modifiable by means of a hydraulic drive system. The latter comprises a linear actuator, a pressure s...  
WO/2019/152173A3
A valve driver system for driving a plurality of valves of a valve manifold. The system includes a plurality of valve drivers, wherein each valve driver is configured to drive a zone of one or more valves of the manifold; and, a power bo...  
WO/2019/197813A1
A hydraulic manifold is formed in one piece. It comprises an exterior wall defining an inner space within which there is at least one flow gallery for conveying hydraulic fluid. The flow gallery provides a fluid flow path and is bounded ...  
WO/2019/192649A1
The invention relates to an electro-hydraulic unit (1) comprising at least one hydraulic valve (3, 4) activated by means of an electromagnet (2), at least one volume flow source (5), which comprises a hydraulic pump (31) driven with the ...  
WO/2019/185755A1
The invention relates to a fluid valve (50) for a hydraulic circuit of an aircraft, comprising: - a valve body (20) comprising one inlet (22), two outlets (23); - a solenoid electric actuator (40) comprising a ferromagnetic mobile driver...  
WO/2019/186379A1
Described herein is a valve device specifically provided for being used within a hydraulic system that uses sea non-demineralised water as work fluid. The device is characterised in that it envisages a plurality of axial valves (42, 44, ...  
WO/2019/186031A1
The invention relates to a servo valve for controlling the flow rate or the pressure of a fluid, comprising: a control stage comprising at least one permanent magnet, at least one coil and an armature (13) configured to be able to be rot...  
WO/2019/171248A1
The hydraulic distributor (1) comprises: a plurality of modules (2) connected to each other in a removable manner, where each of the modules (2) comprises a relative body (3) provided with: at least one supply channel (4) connectable to ...  
WO/2019/162097A1
A valve device having a feed connector (ZA) of a feed side for the supply of a hydraulic consumer which can be connected to the feed connector (ZA) with pressure fluid, an outlet connector (AA) of an outlet side for the discharge of pres...  
WO/2019/157429A1
An example valve assembly is configured: generate a valve load-sense pressure signal indicative of a pressure level at a workport of an actuator; generate a pilot fluid signal to be communicated to a worksection of a valve assembly to en...  
WO/2019/149988A1
The pipe element (15) for a starting air system (1) of a piston engine (20) comprises a longitudinal central conduit (14) for conveying pressurized air, the central conduit (14) comprising a branch (14a) for connecting cylindrical outer ...  
WO/2019/152173A2
A valve driver system for driving a plurality of valves of a valve manifold. The system includes a plurality of valve drivers, wherein each valve driver is configured to drive a zone of one or more valves of the manifold; and, a power bo...  
WO/2019/149751A1
The invention relates to a control valve assembly (1) for an indirect pneumatic control and to a method for controlling a working fluid pressure. The aim of the invention is to provide a control valve assembly (1) and a method for contro...  
WO/2019/144615A1
A hydraulic support system for a magnetic levitation train and the magnetic levitation train, the system comprising hydraulic support devices (1), a control panel and a hydraulic station, wherein the hydraulic station is fixed to the bot...  
WO/2019/143408A1
A redundant balance line operating system including first and second control lines, first and second balance lines, a first and second compensators and first and second actuators, the components being hydraulically connected to operate r...  
WO/2019/138612A1
This control valve (60) is provided with a housing (70) in which a first and a second supply port (71d, 71e), a first and a second actuator port (71h, 71i) and a pilot port (71j) are formed, and a spool (80) which is slidably housed in t...  
WO/2019/134832A1
The invention relates to a hydraulic valve assembly for use within a hydraulic control block, i.e. a valve disc with a common housing for different valves. A disc-like valve housing has two parallel running contact surfaces as outer surf...  
WO/2019/134788A1
The invention relates to a releasable check valve having a housing, a first closing body guided in a displaceable manner in the housing, the first closing body enabling the fluid connection from a consumer port to an inlet to be shut off...  
WO/2019/132951A1
A control system can include a resettable chamber and a bidirectional valve. The bidirectional valve can be switchable between (i) a first configuration for enabling fluid flow from the control line into a first port of a well tool and f...  
WO/2019/120128A1
An enclosed hydraulic rock drill working system, comprising a hydraulic rock drill (18) and a water tank (2); the water tank (2) supplies water to the hydraulic rock drill (18) by means of a high pressure water supply system, and returns...  
WO/2019/126095A1
In an exemplary method of monitoring performance of a fluid driven actuator for a valve, pressurized fluid is supplied through an actuator supply line to an inlet port of the actuator during a first time period to operate the actuator. C...  
WO/2019/117383A1
A hydraulic machine. A first flow control valve directs fluid from a first fluid supply to a first actuator when the first flow control valve is in a first position. A conflux control valve directs fluid from the first fluid supply to a ...  
WO/2019/117375A1
A first required flow rate is calculated as a function of a first maximum allowable flow rate and a value of a first signal. A second required flow rate is calculated as a function of a value of the second signal. When the first maximum ...  
WO/2019/114557A1
A solenoid valve, comprising a housing (10). The housing (10) is provided with: a coil (20) that generates a magnetic field during turn-on; a static iron core (30) fixedly mounted with respect to the coil (20) and located in the magnetic...  
WO/2018/080958A3
A hinged structure includes a hinge that is actuatable using a hydraulic cylinder. A method of monitoring a load applied to the hinged structure involves leaking the hydraulic fluid from the hydraulic cylinder in a way that compensates f...  
WO/2019/097273A1
This industrial apparatus (2) comprises a pneumatic system (4), a first mechanical device (36) and a second mechanical device (38). The pneumatic system (4) includes: a first pneumatic actuator (6) for commanding the first mechanical dev...  
WO/2019/093538A1
When a first control valve 250 and a second control valve 240 are in non-neutral positions, respectively, a fifth fluid passage 450 and a second fluid passage 420 are closed, thereby generating a first pressure within a fifth portion 451...  

Matches 1 - 50 out of 8,628