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Patent Searching and Data


Matches 101 - 150 out of 8,699

Document Document Title
WO/2019/059431A1
A time-based power boost control system. A fluid source supplies fluid. A relief device relieves pressure of the fluid supplied by the fluid source when the pressure of the fluid exceeds a relief pressure level. A control device controls...  
WO/2019/056043A1
The present disclosure relates to a check valve for a hydraulic cylinder performing a safety critical function, such as, but not limited to a hoist check valve. In one aspect, the valve assembly comprises a body, the body housing both a ...  
WO/2019/051582A1
A single-rod hydrostatic actuator or pump-controlled actuator, comprises a hydrostatic pump connected in a closed circuit to a single-rod hydraulic cylinder where the cylinder velocity is directly controlled by the pump flow, without the...  
WO/2019/053066A1
The invention relates to a control device for a human-machine interface, comprising a base and a member (2) in the form of a lever or a push element, which can be moved relative to the base. It comprises at least one electroactive elemen...  
WO/2019/055046A1
A field bus solenoid valve assembly has a sensor for detecting the commencement of an actuation cycle for moving a piston in a cylinder and piston assembly. A position sensor detects an end position of a piston in a cylinder and piston a...  
WO/2019/048455A1
The invention relates to a valve, in particular for use as a pressure balance (38) in lifting devices (2) that can be actuated hydraulically, comprising a valve housing (54) which has a control connection (40) and a fluid inlet (64) and ...  
WO/2019/047459A1
A high-precision digital hydraulic motor (7), which comprises a digital servo valve (3), a mechanical feedback mechanism (5), and a hydraulic motor (6). The high-precision digital hydraulic motor (7) integrates the digital servo valve (3...  
WO/2019/050064A1
A hydraulic machine may include an engine; a working fluid source driven by the engine to supply working fluid; an actuator; a flow control valve fluidly communicating with the working fluid source, wherein when signal pressure is applie...  
WO/2019/027392A3
The present invention relates to a throttling locking valve (10) for a control valve used in tractor hydraulic lifters and having a body (20) and a locking screw (30) provided inside the body (20). As an improvement, the subject matter t...  
WO/2019/050658A1
A fluidic device comprises a first channel conduit, a valve apparatus, and an additional element adjacent to the first channel conduit. The first channel conduit transports fluid from a first fluid entrance to a fluid exit. In one embodi...  
WO/2019/042277A1
A hydraulic control device (10), comprising: a hydraulic control portion (110) for controlling the hydraulic pressure by adjusting the flow of oil; a pump portion (120) for generating the hydraulic pressure; and a motor portion (130) hav...  
WO/2019/040082A1
A downhole tool includes a hydraulically operated actuation device to actuate the downhole tool and a control system that regulates flow of hydraulic fluid to the actuation device. The control system includes a pilot module and a power m...  
WO/2019/011859A3
The present invention relates to An open center hydraulic system (100), the open center hydraulic system (100) comprising a tank configured to hold hydraulic fluid, a pump configured to provide pressurized hydraulic fluid from the tank, ...  
WO/2019/035016A1
A valve includes a bore within a valve body having a central axis. A plurality of galleries in the bore define flow paths for hydraulic fluid. A spool is positioned in the bore, and the spool is moveable along the central axis between a ...  
WO/2019/035923A1
A technique facilitates both actuation of a well tool and chemical injection at a corresponding well zone or well zones. In a multi-zone operation, the well system may comprise a plurality of operating modules coupled with corresponding ...  
WO/2019/036561A1
A hydraulic power unit (HPU) configured for use with a pressure relief valve (PRV) having an open port and a close port is provided. The HPU includes a pneumatic primary pump, a hydraulic fluid reservoir, an accumulator, and a two positi...  
WO/2019/028695A1
A digit hydraulic control system for azimuth control of a heliostat. The system comprises: a hydraulic auxiliary element (1), a hydraulic power element (2), a digital hydraulic motor (3), and a heliostat azimuth motion mechanism (4). The...  
WO/2019/030362A1
The present disclosure relates to a pre-fill hydraulic cylinder for actuatin a pre-fill valve. The pre-fill hydraulic cylinder has features for providing enhance alignment between a valve seat and a poppet moved by the pre-fill hydraulic...  
WO/2019/030354A1
The present disclosure relates to a valve device having valves arranged a compact in-line arrangement. In one example, the valves are mounted in a manifold and control flow between a pump port, an actuator port and a tank port defined by...  
WO/2019/020806A1
The present invention relates to a hydraulic device, in particular a hydraulic valve or hydraulic controller, comprising a housing (14), at least one plunger (17) which is axially movably mounted in a housing bore, and at least one compr...  
WO/2019/010591A1
Disclosed is a rotatable, parallel control, high flow rate, high frequency response digital valve composed of the constituent parts of a valve body (1), a valve sleeve (2), a left servo motor (15) and a right servo motor (9), wherein the...  
WO/2019/014396A1
A system and method for a high flow valve includes a seal rod, an armature configured to be connected to and move the seal rod, a valve seal configured to be connected to the seal rod, an exhaust seal seat and a diaphragm. The valve seal...  
WO/2019/011860A1
The present invention relates to a hydraulic valve control unit for an open center hydraulic system, the open center hydraulic system comprising a pump, a shunt valve and one or more actuator valves coupled to the shunt valve, wherein ea...  
WO/2019/011859A2
The present invention relates to An open center hydraulic system (100), the open center hydraulic system (100) comprising a tank configured to hold hydraulic fluid, a pump configured to provide pressurized hydraulic fluid from the tank, ...  
WO/2019/007208A1
A lifter control device, comprising an oil-absorbing filter (1), a gear pump (2), a high-pressure oil filter (3), a hydraulic output valve group (5), an electric control valve group (4), an oil path conversion valve (9), a control mechan...  
WO/2019/009816A1
Transmission mechanism (1) with a handle (2) for controlling of non-electric driving means, comprising a casing (3) attachable to each control unit (4) for controlling each driving means and in which said handle (2) is mounted, which is ...  
WO/2019/007815A1
Described herein is a safety valve (22) for a hydraulic circuit (10) comprising a pump (17) designed to supply a hydraulic fluid at a first pressure value to a pressure line (19), comprising: a chamber (24), which can be fluidically conn...  
WO/2019/005448A1
A transducer for a connection to a fluid pressure source having a mechanism for setting a pneumatic output by way of an electrical input signal. The transducer provides a lower housing assembly and an upper housing assembly. The lower ho...  
WO/2018/232276A1
An air management system for a vehicle having a first pneumatic circuit and a second pneumatic circuit, in which the first and second pneumatic circuits are pneumatically connected in a neutral position via a cross-flow mechanism. The fi...  
WO/2018/225102A1
The present invention relates to a safety valve 20 for a hydraulic system. The valve comprises: an inlet 21, an outlet 22, and a channel 23. For the valve, a maximum operating flow rate Qm of the oil is predetermined. The channel guarant...  
WO/2018/217031A1
An embodiment of the present invention relates to a construction machine, the construction machine comprising: a main pump; a pivoting motor operated by receiving operating oil from the main pump; a pivoting valve for controlling the flo...  
WO/2018/209442A1
A servomechanism and method of operating same are provider. The servomechanism may be used in walking vehicles or construction vehicles. An operator provides a force to an input joint which controls a powered joint of the vehicle. Force ...  
WO/2018/211837A1
The present invention allows the number of components to be reduced and assembly work to be easily performed. A cylinder drive manifold device (10) that constitutes a cylinder drive apparatus (12) is provided with a block-shaped manifold...  
WO/2018/210640A1
The invention relates to an arrangement which comprises a valve (1) and a sensor (10) that detects sound and/or vibration, said sensor being fastened to the exterior of a part of the housing (6) of the valve.  
WO/2018/210046A1
A travel motor integrated valve cover, comprising: a balancing valve assembly (2), unidirectional valve assemblies (31, 32), buffer valve assemblies (41, 42), and a disc-shaped cast cover body (1); formed in the cover body (1) are a firs...  
WO/2018/206316A1
The invention relates to a valve comprising a valve housing (2) which, for transport of a heatable fluid such as hydraulic oil, has at least one utility connection (A, B), at least one pressure supply connection (P), and at least one ret...  
WO/2018/198355A1
A pneumatic servo valve (10) that uses a feedback spring and includes a first nozzle (50), a second nozzle (52), a flapper (30) arranged between these nozzles, and a first back-pressure passage (124) and a second back-pressure passage (1...  
WO/2018/188449A1
Disclosed are a travel motor shift valve (100), a travel motor and a construction machine. The travel motor shift valve (100) comprises a valve core (1), a first working oil port (Y), a second working oil port (L), a third working oil po...  
WO/2018/190475A1
The present invention relates to a valve comprising: an inlet part (IL) having an inlet into which a fluid flows; an outlet part (OL) vertically arranged in the inlet part and having an outlet from which the fluid is discharged; and open...  
WO/2018/171948A1
The invention relates to a control unit for a control device for a heavy-duty vehicle, the unit having a main body (11) with two connection openings (12a, 12b), to which lines for a hydraulic medium of a first hydraulic circuit can be co...  
WO/2018/170951A1
Disclosed is a fixing device for a hydraulic valve, the fixing device comprising a fixing telescopic rod (1), a fixing telescopic rod transition plate (2), a fixing telescopic rod bottom disc (3), a fixing bolt (4), a fixing suction disc...  
WO/2018/174411A1
The present invention relates to a rapid feed device and, more particularly, to a rapid feed device capable of rapidly feeding feed, such as a bombshell, by electric power. The rapid feed device according to the present invention compris...  
WO/2018/168884A1
This servo regulator (100) comprises: a servo piston (20); a first pressure chamber (54a) and a second pressure chamber (54b); a spool (30); a biasing member (71); a first support part (36) for supporting one end (71a) of a biasing membe...  
WO/2018/168883A1
This servo regulator (100) comprises: a servo piston (20); pressure chambers (54a, 54b); spools (30a, 30b); biasing members (37a, 37b); a feedback unit (80) which changes the biasing force of the biasing members (37a, 37b) by rotating in...  
WO/2018/168882A1
This servo regulator (100) comprises: a servo piston (20) which is connected to a swash plate (3); pressure chambers (54, 55) which are provided to face the end of the servo piston (20); spools (30, 40) which are moved by solenoids (37, ...  
WO/2018/169116A1
The objective of the present invention is to provide a hydraulic system, to which an optional redundancy function is applied, having driving devices separately arranged according to use and output specifications and enabling hydraulic so...  
WO/2018/162677A1
A control device having a plurality of modular control sections (12a - 12d), which form a control block when arranged beside one another and have units of an electromagnetically actuatable actuator system and/or of a sensor system for co...  
WO/2018/163089A1
The flow control valve for a single-action cylinder comprises: a control shaft that can be moved between at least three positions, a central chamber for receiving the shaft, an oil inlet for receiving oil from a pump, a tank connection t...  
WO/2018/164669A1
A solenoid valve assembly has a valve body in which a spool is slidably mounted and operated by a solenoid having a coil. A manifold member has a plurality of flow paths for supplying and discharging pressurized fluid to and from ports o...  
WO/2018/164465A1
A system for controlling a construction machine comprises: a hydraulic pump; at least one control valve provided at a center bypass line connected to the hydraulic pump, and controlling the flow direction of hydraulic oil discharged from...  

Matches 101 - 150 out of 8,699