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JP6304207B2 |
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JP6307648B1 |
To provide a cylinder device with a leak detection system capable of detecting a leak of a leaked liquid regardless of the mounting direction of the cylinder device. In a cylinder device with a leak detection system according to the pres...
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JP6302772B2 |
Provided is a hydraulic system for a construction machinery capable of suppressing irregularity in the operation of the front structure not intended by the operator. The hydraulic system comprises: a regeneration motor 55 adapted to be d...
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JP6298457B2 |
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JP6291360B2 |
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JP6283195B2 |
An electro hydrostatic actuator system for retracting/extending a landing gear includes a plurality of hydraulic actuators and a plurality of hydraulic supply sources each including a single hydraulic pump and a single electric motor and...
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JP6279385B2 |
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JP6269715B2 |
An air cylinder 50 includes a tubular cylinder 52 and a piston 51 which is moved by pressure of a fluid supplied to a chamber 56, 57 provided inside the cylinder 52. A monitoring device 1 includes a heat flux sensor 10 and a detection pa...
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JP6267250B2 |
An abnormality detection device for a hydraulic circuit including an oil pump, a switching unit switching between a fully discharged state and a partial discharge, a pressure regulator, a pressure regulation controller and a hydraulic de...
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JP6260852B2 |
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JP6262915B1 |
A hydraulic system motor made to rotate a fan based on operation oil in which a fan driver system was supplied from a hydraulic pump and a hydraulic pump, A data acquisition section which acquires a fan's real number of rotations, and th...
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JP2017219187A |
To provide a hydraulic control device capable of operating a heavy machine operation unit without affecting an engine speed of a prime mover.A hydraulic control device includes, between a driving shaft 2 of a prime mover 9 and a hydrauli...
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JP2017207078A |
To provide a liquid leakage detection device capable of not only discovering a liquid leakage early but also foreseeing the liquid leakage.In order to solve the aforementioned object, a liquid leakage detecting device of the invention co...
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JP2017202909A |
To provide a crane which can adjust a pressure of working fluid by manual operation even if proportional pressure reduction valves are failed, and can consequently move actuators at a proper speed.In a crane 1 constituting a hydraulic sy...
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JP6230873B2 |
An actuator is driven even if a jammed state, a motor stop, or the like occurs. An electromechanical actuator includes: an electric motor attached to a housing; a conversion mechanism portion having a drive portion that is driven to rota...
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JP6228430B2 |
This hydraulic drive unit (1) drives actuators (7, 9, 10) by supplying said actuators (7, 9, 10) with a hydraulic oil discharged from a hydraulic pump (11). The hydraulic drive device (1) is provided with operation valves (13, 14), a flo...
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JP6224937B2 |
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JP2017194070A |
To provide a pharmaceutical water supply device that can continue a supply operation even when a pump is failed, and satisfies a necessary supply amount, and to provide a method.A pharmaceutical water supply device 10 supplies pharmaceut...
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JP6219554B1 |
The valve box which is an extraordinary operation valve which can be switched alternatively about a valve-opening state and a valve-closing state, and has a cave-like valve room, The first oilway that is an oilway of the operation oil wh...
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JP6211362B2 |
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JP6208569B2 |
To enable not only remote control over an actuated valve such as an air actuated valve but also a remote control operator to safely control the actuated valve even during loss of power.A gas supply apparatus includes: a first solenoid va...
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JP2017159328A |
To provide a hemming die system with reduced or eliminated incidence of defects upon breakdown of a solenoid valve.The hemming die system includes a hemming die (1) and a pneumatic circuit (11). The hemming die (1) has: a lifter (4) that...
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JP2017160999A |
To provide a workpiece holding device in which failure hardly occurs even when a solenoid valve is broken.A workpiece holding device includes: a holding device 1 configured to hold a plate workpiece with operation of a pilot type and dou...
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JP6188160B2 |
Fluid regulator systems having reset apparatus and methods are described herein. An example reset apparatus for use with a fluid regulator system includes a first valve having an inlet to receive a loading fluid and an outlet in fluid co...
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JP6177562B2 |
An object of the present invention is to prevent breakage of a unidirectional filter part for high-pressure oil. A hydraulic device 100 supplies oil to a high-pressure oil channel L1 and a low-pressure oil channel L2 from an oil tank 102...
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JP6169735B2 |
Apparatus to increase a force of an actuator having an override apparatus are described herein. An example fluid control system includes a first fluid control apparatus to fluidly couple a control fluid supply source to a control actuato...
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JP6170755B2 |
An electro hydrostatic actuator includes a single-rod cylinder having fixed and movable ends, a hydraulic supply source, and a reservoir provided in a hydraulic circuit and capable of storing operation oil. At a predetermined position of...
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JP6169126B2 |
Fault detection and response systems and processes can be used for pumps, e.g., pump/motors used in hybrid vehicles. The fault detection systems determine when certain operating conditions, which may affect the proper operation of the sy...
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JP6166995B2 |
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JP6158914B2 |
An actuator system includes a piston-cylinder arrangement including a piston that is movable with respect to a cylinder. A first flow path is in fluid communication with the piston-cylinder arrangement and a second flow path is in fluid ...
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JP6155159B2 |
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JP6151265B2 |
This work machine is provided with: a pneumatic pump (5A); a pneumatic drive device; a pneumatic control valve (50); a communicatively connected first control device (81) and second control device (82); a work tool (60); a first operatio...
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JP6148196B2 |
A hydraulic system includes a motor. A brake is to be actuated by an operation fluid to brake the motor when a hydraulic pressure is relieved and to release the braking when the hydraulic pressure is applied. A switch valve is to be swit...
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JP2017514079A |
The present invention is for a plurality of hydraulic working circuits (12) for supplying pressure oil for actuators and / or drive units of a plurality of movable mechanical members, and for working circuits for avoiding danger due to t...
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JP6132648B2 |
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JP6124991B2 |
The present invention relates to a hydraulic attachment comprising a hydraulic circuit, the attachment being a construction or demolition tool, in particular a hydraulic breaker, demolition shears, scrap shears, a pulverizer, a gripper, ...
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JP6112085B2 |
To provide a trouble diagnosing method and device for servo valves under hydraulic pressure that can more accurately determine the presence or absence of trouble in servo valves under hydraulic pressure and reduce the occurrence of misju...
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JP6103131B2 |
A fluid control device (10) includes a container (13), a pump (11), a solenoid valve (12), and a capacitor. The pump (11) is driven by a main power source, and is capable of pressurizing or depressurizing the inside of the container (13)...
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JP6077901B2 |
The invention relates to a hydraulic circuit which makes it possible to perform maintenance on a stack valve of the hydraulic circuit and to perform various functions such as flushing of the circuit and a trial run in parallel with the m...
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JP2017025982A |
To provide a servo drive hydraulic unit capable of detecting oil leakage inside a hydraulic circuit and preventing deterioration of thermal displacement accuracy of a machine due to oil leakage inside the hydraulic circuit, deterioration...
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JP6071821B2 |
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JP6071699B2 |
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JP6054297B2 |
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JP6047672B1 |
The present invention provides a vacuum processor provided with a gas supply means which has hard interlock of a pair of gas valves. In a vacuum processor provided with a gas supplying section which supplies gas for the present invention...
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JP6040968B2 |
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JP2016537568A |
This indication includes a hydraulic device and a method for a duplication operation of a liquid pressure device. Some devices are provided with the following. A liquid pressure device which has the 1st liquid pressure actuator and the 2...
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JP6036344B2 |
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JP6029992B2 |
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JP2016188699A |
To provide a compression liquid supply system, a method, and an atomic power plant capable of reducing the load applied to an impeller of an alternative pump when operating a constant capacity type alternative pump which is operable as a...
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JP6013031B2 |
A controller that performs pulse width modulation control of a three-phase inverter circuit includes a three-phase modulation voltage command value generation unit, a two-phase modulation voltage command value generation unit, a voltage ...
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