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Patent Searching and Data


Matches 351 - 400 out of 8,687

Document Document Title
WO/2015/163767A1
Actuator for use in subsea installations. The actuator comprises a pressure compensator (D) for limitation of temperature-induced pressure increase in a closed hydraulic system in the actuator. The pressure compensator comprises a piston...  
WO/2015/164321A1
A hydraulic unit (40) with a manifold (54) having a front face (58) to which a plurality of metering valves (56a-56d) are mounted for convenient access, and the manifold has ports connectable to ports of the hydraulic actuators on surfac...  
WO/2015/158014A1
A mining manual and automatic integrated electromagnetic pilot valve, comprising a base shell (1) and two sets of compression rod mechanisms, wherein each of the two sets of compression rod mechanisms comprises a compression rod (3), a p...  
WO/2015/157157A1
A servo valve includes a valve housing (102), a piston cylinder (104) disposed in the housing, a piston (108) disposed within the piston cylinder (104) and fluidly connected on a first end to a first fluid pressure pathway (116) and on a...  
WO/2015/153322A1
The control valve assembly includes a valve housing defining a bore and a valve assembly. The valve assembly includes a spool assembly disposed in the bore of the valve housing. The spool assembly includes a first spool and a second spoo...  
WO/2015/147464A1
The present invention relates to a method for controlling a swing motor in a hydraulic system and a hydraulic system. The method for controlling the swing motor in the hydraulic system and the hydraulic system, according to one embodimen...  
WO/2015/142819A1
A back pressure control system adapted to be at least partially integrated with a drill rig.  
WO/2015/141132A1
The operation device (100) is provided with: a pilot valve (3), which has an operation part (2) and is for outputting a pilot pressure corresponding to the amount by which the operation part (2) is operated; and an electric signal-output...  
WO/2015/135554A1
Hydraulic distributors are economical valves in which the resistance to the flow of pressurized oil is minimal; however, they are slow and cannot be controlled rapidly and accurately. In contrast, servo valves and proportional valves are...  
WO/2015/138599A1
A valve assembly for controlling fluid flow is provided. The valve assembly includes a housing having a first chamber and a second chamber, an actuator assembly configured to move between a first position and a second position within the...  
WO/2015/132178A1
A working machine is disclosed having a movable implement (18), a hydraulic actuator (32, 16) for displacing the implement (18), and a hydraulic control system for enable an operator to control movement of the implement (18). The control...  
WO/2015/131918A1
A valve apparatus having at least one valve device (10), the control slide (12) of which is guided in a valve housing (14) so as to be longitudinally movable under the action of two pilot pressures (xA, xB) which act on said control slid...  
WO/2015/131915A1
The invention relates to a valve assembly (1) comprising at least one valve control group (2), which has two valve units (3, 4). Each valve unit (3, 4) contains a valve tappet (15, 16), which is arranged in a valve chamber (12, 13) and w...  
WO/2015/131973A1
A valve unit for affecting a media flow between a supply terminal (38), to which a pressure supply source can be connected, and a pressure terminal (40), to which a hydraulic consumer can be connected, comprises a valve device (88) that ...  
WO/2015/071675A3
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/2015/120748A1
A four-state adjustable air path structure, which is an air storage-type pneumatic actuating mechanism. An air source (1) is respectively connected to an air storage tank (3) and a port a1 of a two-position three-way solenoid valve A (4)...  
WO/2015/119959A1
A valve controller configured to operate on a Foundation Fieldbus Network and including a spool valve movable between at least an opening position and a closing position, and a flapper nozzle pilot valve arranged to move the spool betwee...  
WO/2015/119311A1
Disclosed are a control value for construction equipment for controlling oil flow supplied to a hydraulic actuator from a hydraulic pump by spool switching and a control method thereof. The control valve for construction equipment, accor...  
WO/2015/032492A3
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/2015/108637A2
A spool valve (150) is associated with a hydraulic system (100) and includes a valve body (152) delineating an inlet port (164), a relief port (166), and an actuator port (168). A spool (170) is movably disposed inside the valve body (15...  
WO/2015/108216A1
The disclosed invention relates to a drive control apparatus for a construction machine, comprising a work apparatus operating means, a left drive pedal apparatus, a right drive pedal apparatus and a pilot pump for providing a pilot sign...  
WO/2015/075228A3
The invention relates to a control system with at least two channel- guiding parts (2, 3) and an intermediate plate (1) arranged between the two channel-guiding parts (2, 3). The intermediate plate (1) comprises at least two flat metalli...  
WO/2015/102898A1
A hydraulic system (100) and a method are disclosed. The hydraulic system (100) includes a first pump (106) having an outlet (116) that is fluidly coupled to a first actuator (102) via a first conduit (114), a second pump (136) having an...  
WO/2015/099437A1
The present invention relates to a hydraulic system of construction machinery and a method of controlling the hydraulic system. The hydraulic system of construction machinery and the method of controlling the hydraulic system according t...  
WO/2015/099352A1
One embodiment of the present invention relates to an apparatus for controlling a combined operation of a construction machine, comprising: a first pump and a second pump for supplying under the operation of an operation unit pressurised...  
WO/2015/094142A1
The present invention comprises a poppet (11) which functions as a load check valve, and a pressure balancing slide (9) wherein the poppet (11) functions inside the body at the same time and a spring which separates them from each other....  
WO/2015/085647A1
An inner-circulation high-speed hydraulic system comprises a hydraulic cylinder assembly and a pressurizing valve assembly. The hydraulic cylinder assembly is provided with a high-pressure cylinder body, a hydraulic plunger, and a housin...  
WO/2015/078249A1
Disclosed are an integrated hydraulic valve unit, a hydraulic driving system and a concrete pump, wherein the integrated hydraulic valve unit is integrated from a hydraulically operated reversing valve (10), a first control valve (9), an...  
WO/2015/079292A1
The invention refers to a lift axle control valve module (2) for a lift axle suspension system of a vehicle, said lift axle control valve module (2) comprising a pneumatic spool valve for adjusting the air volume of at least a suspension...  
WO/2015/078089A1
A circular-flow power machine is constituted, as desired, according to variations in force, rate of flow, and number of strokes, and by utilization of limitless increase in power via serial-connection means and an increase in number of s...  
WO/2015/075228A2
The invention relates to a control system with at least two channelā€guiding parts and an intermediate plate arranged between the two channelā€guiding parts. The intermediate plate comprises at least two flat metallic gasket layers as ...  
WO/2015/074674A1
The invention relates to a valve arrangement for manipulating at least one fluid flow, having a control device (17) and having at least one valve device (18), wherein the control device (17) has a bus interface (20) for a connection to a...  
WO/2015/074170A1
A pressure compensation valve comprises a valve body (1), a valve sleeve (2) fixedly mounted on the valve body (1), and a spool (3) disposed in a valve hole (4e) of the valve body (1) and capable of moving. The valve sleeve (2) and the s...  
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/2011/143004A8
An electronic coolant valve mechanism with an integral actuator mechanism. The coolant valve mechanism utilizes an electric motor and a planetary roller mechanism integrated into a valve body to translate and operate a valve member in 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/2015/004136A3
The invention relates to a steering brake actuation unit (1) for a hydraulic brake system (100) for a motor vehicle, said brake system (100) comprising: a left wheel brake (2) having a left brake circuit (4); a right wheel brake (3) havi...  
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...  

Matches 351 - 400 out of 8,687