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JP6005489B2 |
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JP2016176601A |
To provide a hydraulic system of an aircraft actuator, that can drive the actuator even when the function of an airframe side hydraulic power source is lost or deteriorated, can prevent lowering of airframe efficiency, can inhibit heat g...
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JP5974684B2 |
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JP5964912B2 |
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JP5961473B2 |
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JP5961463B2 |
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JP5961580B2 |
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JP2016132988A |
To provide a fail-safe hydraulic drive system that comprises a plurality of hydraulic pumps and has a simple structure.A fail-safe hydraulic drive system comprises: first and second hydraulic pumps; a first regulator including a first ho...
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JP5950980B2 |
A control valve device includes a valve main body formed to have an actuator port connected to an actuator, a communication passage formed in the valve main body and configured to allow the actuator port to communicate with a drain port,...
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JP2016518288A |
In at least one rudder (6) and a rudder driver system (2) for operating a guide machine of a vessel which accomplished a redundant system and was provided with the two independently operational electric liquid pressure type main actuator...
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JP2016109210A |
To provide a joint device capable of being connected in a state where working pressure oil having a high-pressure large flow rate acts, with quick and simple operation.A joint device comprises: a closing chamber 27 that is provided in a ...
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JP5926031B2 |
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JP2016084847A |
To provide a fluid control device capable of moving a valve element to a valve opening position with a small operating force when a fluid of an accumulator flows in, and surely moving the valve element to a valve closing position when th...
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JP2016080084A |
To provide a follow-up device and a machine tool in which consumption power during standby state can be reduced and their energy-saving can be attained, and an operational method for the follow-up device at the machine tool.This inventio...
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JP5911687B2 |
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JP5905294B2 |
A plurality of actuators (11a, 11b) operate as a result of pressure oil being supplied thereto from a aircraft central hydraulic power source 104, and drive one control surface 103a. A backup hydraulic pump 18 is installed inside a wing ...
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JP3203457U |
To provide an oil leak detecting device for a working machine capable of detecting an oil leak more accurately than before in consideration of an operating position of an actuator corresponding to a working posture of the working machine...
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JP5883616B2 |
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JP5878973B2 |
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JP2016031086A |
To provide a fault diagnosis device for hydraulic equipment for setting a drain amount at a hydraulic circuit to a suitable normal value to reduce loss of entire device under application of a spool valve having a spool position sensor.A ...
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JP5876662B2 |
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JP5873876B2 |
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JP5857004B2 |
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JP5859279B2 |
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JP2016011633A |
To provide a hydraulic drive system with fail-safe with a simple configuration.A hydraulic drive system 1 with fail-safe electrically controls a discharge flow volume from a hydraulic pump 2 using an electromagnetic proportional valve 4....
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JP5841192B2 |
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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JP5835297B2 |
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JP5836901B2 |
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JP5823932B2 |
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JP5822853B2 |
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JP5801539B2 |
Construction equipment having an electric control lever is provided, which can intercept a control signal applied to a flow control valve when trouble occurs in the electric control lever or a control unit. The construction equipment inc...
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JP5792049B2 |
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JP5786595B2 |
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JP5783184B2 |
Provided is a slewing type construction machine including an upper slewing body and a slewing speed sensor that detects a slewing speed of the upper slewing body, the construction machine enabling accurate control to be achieved regardle...
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JP5778058B2 |
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JP5774328B2 |
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JP5774014B2 |
A method for operating a hydraulic actuation system during a pressure sensor malfunction is provided. The hydraulic actuation system includes a pump, a reservoir, a first work-port and a second work-port, a valve system with individual o...
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JP5723248B2 |
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JP5723622B2 |
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JP5722185B2 |
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JP5717073B2 |
In a solenoid valve system, a plurality of first through third solenoid valve units are divided into a plurality of first through third groups. In this case, a safety power source control unit is provided for controlling the first throug...
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JP5711543B2 |
A hydraulic actuator system 1 is provided for driving a movable portion attached to a wing 5 of an airplane. A plurality of first system hydraulic actuators 2 and a plurality of second system hydraulic actuators 3 are included and are co...
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JP5710015B2 |
A safety circuit for valves actuated hydraulically via a positioning cylinder. The positioning cylinder in one embodiment is configured to be hydraulically or pneumatically depressurized in an emergency. The positioning cylinder has two ...
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JP5692542B2 |
A fluid circuit includes a tank for holding fluid, a hydraulic device having a predetermined load configuration, and a pump for delivering the fluid under pressure to the hydraulic device. Sensors measure at least one of a supply pressur...
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JP2015061380A |
To provide a hydraulic device which inhibits increase in a main circuit voltage with a simple structure when abnormality, such as abnormal increase in the main circuit voltage of a power conversion part, occurs.A hydraulic device include...
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JP5690410B1 |
The lock valve switching unit switches the lock valve from the locked state to the released state when the lock member is switched from the locked position to the released position. The erroneous operation monitoring unit releases the lo...
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JP5683895B2 |
In one embodiment, a steam valve apparatus includes: a steam valve (200) passing or blocking a steam to a turbo machine; a piston (202) operated by a hydraulic liquid to open or close the steam valve; a hydraulic cylinder including an in...
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JP2015014349A |
To provide an emergency air supply system capable of automatically supplying driving air, and capable of maintaining a state in which an air-operated valve can be operated even when an air source is lost in a plant.An emergency air suppl...
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JP5658117B2 |
A first actuator (14a) drives a control surface (103a) by being operated by supply of pressure oil from a first aircraft central hydraulic power source (104) including a first aircraft central hydraulic pump (104a) . A second actuator (1...
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JP5651099B2 |
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