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Matches 1 - 50 out of 32,977

Document Document Title
WO/2018/092505A1
According to the present invention, a command rotational speed deceleration that is the deceleration of a command rotational speed that is set by a command rotational speed setting unit is greater than an actual rotational speed decelera...  
WO/2018/092582A1
This work machine is provided with: control valves (41-43) that control a flow of hydraulic oil supplied to actuators (31-33); operation lever devices (51-53) that generate, in response to operations thereof, hydraulic signals to be outp...  
WO/2018/092510A1
According to the present invention, when pressure can be accumulated at an accumulator, a hydraulic fluid that is discharged from a raising/lowering lift cylinder can cause pressure to accumulate at the accumulator via a pressure accumul...  
WO/2018/093303A1
The present invention regards a fluid actuator arrangement (1) comprising a first cylinder housing (3,3') comprising a first piston body (5, 5') comprising a first through-bore (11') and a first clamping element (13') provided for releas...  
WO/2018/092509A1
According to the present invention, when pressure can be accumulated at an accumulator, a hydraulic fluid that is discharged from a raising/lowering lift cylinder can cause pressure to accumulate at the accumulator via a pressure accumul...  
WO/2018/092507A1
A hydraulic drive device that comprises a resistance element that increases fluid resistance and is arranged on a descending oil path further to a lift cylinder side than an operation valve. A pilot flow path for a bypass flow control va...  
WO/2018/092629A1
This composite valve (1A) is formed by a valve body (10A), a first valve module (40A), and a second valve module (70A). The valve body (10A) has: a first body section (10a) for attaching the first valve module (40A); a second body sectio...  
WO/2018/088145A1
Provided are: an energy regeneration device capable of controlling the flow of a hydraulic fluid discharged from an actuator while regenerating energy from the hydraulic fluid; and a work machine provided with same. The regeneration devi...  
WO/2018/084332A1
The present invention relates to a hydraulic control system for a construction machine. More specifically, the present invention provides a hydraulic control system for a construction machine comprising: a hydraulic pump group that inclu...  
WO/2018/079194A1
A hydraulic shovel drive system is provided with: first and second pumps; an arm cylinder; an arm first control valve connected with the arm cylinder by an arm pulling supply line and an arm pushing supply line; an arm second control val...  
WO/2018/077330A1
The invention relates to a hydraulic system (1) for clutch and/or transmission actuation, comprising a reversible pump (2) and two main lines (3, 4), wherein the pump (2) can be connected to a first consumer (7) at a first pump connectio...  
WO/2018/079193A1
A hydraulic drive system for a construction machine is provided with: a variable capacity-type pump that supplies a working fluid to a turning motor via a turning control valve; a pair of supply/discharge lines connecting the turning mot...  
WO/2018/073152A1
The invention relates to a hydraulic drive for a hydraulic spindle, such as a die cushion device of a press machine for example, comprising a fluid pump for providing a volumetric flow for a drawing process from a fluid supply to a hydra...  
WO/2018/075241A1
Methods and apparatus of stabilizing a valve positioner when testing a solenoid valve are disclosed. An example apparatus includes a solenoid valve (202) and a valve positioner (106) fluidly and communicatively coupled to the solenoid va...  
WO/2018/069128A1
The invention relates to a hydromechanical blocking cylinder (10) comprising a piston (22) which can be hydraulically actuated in a cylindrical tube (112) and a threaded portion (23) of which engages a threaded portion (31) on a spindle ...  
WO/2018/071412A1
A hydraulic control valve maintains the pressure at a control port at a desired percentage of the pressure at two other ports as the pressure at the two other ports varies. Upon the pressure at the control port reaching a predetermined p...  
WO/2018/068876A1
The invention relates to a discharge pressure scale (30) consisting of at least one valve housing (41) having at least three fluid connection points in the form of a functional connector (A), a return flow connector (T) and a control con...  
WO/2018/066310A1
A control valve (14) configuring an intermittent air-generating device (10) is made from a five-port valve, the inlet port (24) of which is connected to a fluid supply source (12) and the outlet port (26) is connected to an air-spraying ...  
WO/2018/065670A1
The invention concerns an arrangement for controlling a hydraulic actuator (10) in a working device (42), which arrangement includes one or more hydraulic actuators arranged to drive a moving work element (43) belonging to the working de...  
WO/2018/065130A1
The invention relates to an electrohydraulic drive unit comprising: a cylinder-piston assembly (1), having a piston-side first hydraulic working chamber (5) and a piston-rod-side second hydraulic working chamber (6); a tank (4); a hydrau...  
WO/2018/061132A1
This work vehicle is provided with: an engine; a work device; a hydraulic cylinder that drives the work device; a main hydraulic pump that is driven by the engine so as to supply pressure oil to the hydraulic cylinder; an operation devic...  
WO/2018/061128A1
The present invention is provided with: a pump horsepower control valve (22) that applies, in an opposing manner, a first impelling force determining the limit horsepower (F) of a hydraulic pump and a second impelling force caused by a d...  
WO/2018/058168A1
An apparatus for actuating a hydraulic cylinder comprising feed and return hydraulic hoses, extend and retract hoses, a hydraulic pump, a directional valve and control means. The feed and return hydraulic hoses are each removeabley conne...  
WO/2018/064148A1
A selector control that is manually operable by a user for activating or deactivating a primary control or a secondary control. The selector control may include a first state for activating the primary control and deactivating the second...  
WO/2018/056037A1
A cylinder main body (36, 136) of a fluid pressure cylinder (20, 20A, 120, 120A) includes: a switch valve (24, 124), a check valve (30, 130), a flow path (60, 62, 64, 68, 80) communicating a high pressure air supply source (26, 126) with...  
WO/2018/056036A1
A fluid pressure cylinder driving device (20, 20A to 20F) includes a switch valve (24), a high pressure air supply source (26), an exhaust port (28) and a check valve (30). When the switch valve (24) is at a first position, a head side c...  
WO/2018/055723A1
In order to avoid reaching an overload relief set pressure and suppress switching shock, thereby ensuring good operability in a hydraulic energy recovery device wherein return oil in a hydraulic cylinder is pressurized and recovered, thi...  
WO/2018/055696A1
This working vehicle is provided with: a discharge oil passage (10) through which hydraulic oil discharged by a first hydraulic pump (2) to drive a bucket flows; a discharge oil passage (11) through which hydraulic oil discharged by a se...  
WO/2018/055205A1
The invention relates to the adjustment of a vehicle flap of an agricultural vehicle, watercraft, or airplane using at least two linear cylinders, wherein each linear cylinder has at least two hydraulic chambers which can be filled with ...  
WO/2018/055298A1
The invention concerns a hydraulic control system (1) comprising a plurality of hydraulic cylinders (A, B) intended to be actuated in a synchronised manner, each hydraulic cylinder comprising a barrel having an internal space and a pisto...  
WO/2018/051670A1
Provided is a device that makes it possible to accelerate a pinching operation with a high degree of freedom, without entailing significant pressure loss. A pinching device is provided with: a pinching device body (20) that includes a pa...  
WO/2018/047647A1
This damping valve (DV) comprises: a damping force adjusting path (TP) and a fail path (FP) that are arranged in parallel; a downstream path (DP) that is connected to the damping force adjusting path (TP) and the fail path (FP) on the do...  
WO/2018/043217A1
Provided is a construction machine in which a simple configuration can be used to inexpensively implement the switching of modes related to the speed of a travel motor, and the switching of modes related to priority levels for the supply...  
WO/2018/039791A1
A hydraulic system includes two or more linear hydraulic actuators and is operable in, and is switchable between, a hydrostatic operating mode and a non-hydrostatic operating mode.  
WO/2018/043401A1
This hydraulic drive system is provided with: a hydraulic actuator; a control valve for controlling the supply and discharge of hydraulic oil to and from the hydraulic actuator; a pilot operation valve connected to an operation valve by ...  
WO/2018/038608A1
The invention relates to a pneumatic stepper motor, comprising: - a housing, said housing accommodating at least part of: - a rack or geared axle comprising a plurality of gear elements; and - two pistons, each comprising at least two te...  
WO/2018/037925A1
Provided are: an energy regeneration device that can regenerate the energy of working fluid that is discharged from an actuator while controlling the flow rate of the working fluid; and a work machine that comprises the energy regenerati...  
WO/2018/037567A1
A control system is provided with: a first hydraulic pump and a second hydraulic pump; a flow channel connecting the first hydraulic pump and the second hydraulic pump; an opening/closing device provided in the flow channel to open and c...  
WO/2018/038231A1
A neutral valve according to the present invention comprises a spool that is inserted in a housing so as to be capable of movement in a prescribed direction and that moves between a neutral position at which a first port and a second por...  
WO/2018/037924A1
Provided are: an energy regeneration device that can regenerate the energy of working fluid that is discharged from an actuator while controlling the flow rate of the working fluid; and a work machine that comprises the energy regenerati...  
WO/2018/034017A1
The purpose of the present invention is to suppress lug down that occurs during a forward/backward movement switching operation or excavation work, and to enable the movement of a work vehicle to be made smoother. Provided is a work vehi...  
WO/2018/028832A4
In the case of an, in particular, pressure-accumulator-free hydraulic drive arrangement (10) for and comprising a consumer, in particular for presses, having a double action piston/cylinder arrangement (20) which comprises at least one r...  
WO/2018/029019A1
The at least one electrohydraulic drive unit (6) of a machine tool having a tool which can be moved up and down comprises an upright, double-acting hydraulic cylinder/piston arrangement (7) with a piston (13) which projects downwards out...  
WO/2018/028832A1
In the case of an, in particular, pressure-accumulator-free hydraulic drive arrangement (10) for and comprising a consumer, in particular for presses, having a double action piston/cylinder arrangement (20) which comprises at least one r...  
WO/2018/025072A1
A position actuator includes a cylinder housing forming a fluid chamber having a first portion and a second portion, a movable main piston disposed in the cylinder housing between the first portion and the second portion, and a piston ro...  
WO/2018/025964A1
Provided are a hydraulic control valve and a hydraulic control circuit with which pressure loss of return oil during a contraction operation of a hydraulic cylinder can be reduced without providing a quick return circuit on the outside, ...  
WO/2018/025546A1
A crusher (9) has a switching valve (24) that switches the state of a hydraulic circuit (5) in the crusher (9) so as to: connect a second cylinder (16B) head-side chamber and a housing chamber (S1) when a crushing arm is rotated in the o...  
WO/2018/025071A1
A position actuator includes a cylinder housing forming a fluid chamber having a first portion and a second portion, a movable main piston disposed in the second portion, a piston rod firmly attached to the main piston and extending thro...  
WO/2018/024790A1
To provide a pump control device and a pump control method enables to change the setting of a pump flow. The controller (34) is to obtain the sum total value and the maximum value of the demanded flows from the respective hydraulic actua...  
WO/2018/021321A1
This controller unit is provided to a hydraulic drive system for an operating machine that moves a structure using an actuator by supplying a hydraulic fluid to the actuator. The controller unit has: a gyro sensor that outputs a signal c...  

Matches 1 - 50 out of 32,977