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Patent Searching and Data


Matches 501 - 550 out of 3,133

Document Document Title
JP6211362B2  
JP2017180609A
To secure a line pressure of a hydraulic circuit when failure occurs in an electrically-driven type oil pump.A hydraulic control device controls oil in a hydraulic circuit 200 to a line pressure PL, a secondary pressure Psec, and lubrica...  
JP6208569B2  
JP2017172658A
To provide a hydraulic working machine capable of preventing working oil from being overheated by arranging an oil cooler for an emergency escaping unit and operating the oil cooler for an emergency escaping unit together with an oil coo...  
JP2017171012A
To provide a hydraulic work vehicle capable of quickly stopping actuation of a working device to secure safety when discrepancy occurs between the control content of a hydraulic actuator and actuation of the actuator detected by a sensor...  
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...  
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...  
JP2017160890A
To provide a steam turbine valve driving device which achieves stable operation with a simple structure.A steam turbine valve driving device includes: a cylinder 5 which houses a piston 5c for conducting opening/closing operation of a st...  
JP2017155881A
To secure duplexing with two pilot check valves to improve reliability.A controller of a liquid pressure cylinder includes a first pilot check valve 39 and a second pilot check valve 40 whose one end sides are connected to a cylinder cha...  
JP2017150603A
To provide an abnormality detection device for a hydraulic circuit capable of detecting more precisely a fastening of a partial discharged state of changing-over means for changing-over a full discharged state and a partial discharged st...  
JP6188160B2  
JP6177562B2  
JP6169735B2  
JP6170755B2  
JP6169126B2  
JP6166995B2  
JP2016223590A5  
JP2017120116A
To provide means which enables a user to accurately grasp occurrence of leakage of a hydraulic oil of a hydraulic oil supply/discharge device for supplying and discharging the hydraulic oil to a hydraulic cylinder and a leakage amount of...  
JP6158914B2  
JP2017115804A
To provide a steam valve driving device capable of safely performing online maintenance.In a steam valve driving device 20 according to one embodiment, a first solenoid valve 40, a second solenoid valve 60, a hydraulic pilot valve 70, a ...  
JP2017115942A
To provide a work machine which performs regeneration control and realizes energy saving even when an abnormality occurs in a pressure sensor of a hydraulic actuator.A work machine comprises: a hydraulic pump 41b which supplies pressure ...  
JP2017115994A
To provide a work machine of a high operation rate to continue a work by preventing inoperability of a hydraulic shovel in failure of a pump control device.A work machine has a host control device 33 including a hydraulic pressure contro...  
JP6155159B2  
JP2017110672A
To provide a hydraulic drive system capable of returning a control valve to its neutral position when an electromagnetic proportional valve is troubled.There are provided a plurality of control valves 31, 32, 33, 34 and 35; a plurality o...  
JP6151265B2  
JP2017105584A
To prevent a turning body from being quickly stopped caused by improper operation by an operator.The work machine, equipped with a hydraulic circuit in which a hydraulic pump is connected to a hydraulic motor with a control valve having ...  
JP2017106539A
To provide a work machine dispensing with a rotary joint which can use electric power of a strong electricity system when an engine is stopped.A hydraulic driving device of a work machine includes: a hydraulic pump 12 for upper air-condi...  
JP6148196B2  
JP2017101790A
To quickly specify a failed valve.A control device 57 of a work machine is a control device included in a work machine which includes a plurality of pumps, a plurality of on-off valves, a changeover switch for changing a normal work mode...  
JP2017096033A
To provide a work machine hydraulic transmission, for a work machine mounted with an exhaust gas treatment device using a reducing agent, which enables an emergency evacuation measure to be taken on an occurrence of serious abnormality i...  
JP2017514079A
A work circuit (12) of a plurality of liquid pressure types for the present invention to supply an actuator of a plurality of mobile machine members, and/or pressure oil of a drive unit, And it is related with a control system for an ope...  
JP2017089694A
To provide an interlock device not applying bad influence to equipment in a circuit and provide a gas pressure device including the interlock device even in the case that compressed gas is supplied from the other supply port under a stat...  
JP2017089668A
To provide a liquid leakage detector capable of not only finding out liquid leakage early but also foreseeing liquid leakage.A liquid leakage detector includes: a sliding contact member S sliding on an outer peripheral surface of a rod 2...  
JP6132648B2  
JP2016014398A5  
JP6124991B2  
JPWO2016024501A1
A fluid control apparatus (10) is provided with a container (13), a pump (11), an electromagnetic valve (12), and a capacitor. It drives by a main power supply and pressurization or decompression of the inside of a container (13) is poss...  
JPWO2016121075A1
The present invention provides a vacuum processor provided with the gas supply means which has hard interlock of a pair of gas valves. In a vacuum processor provided with the gas supplying section which supplies gas for the present inven...  
JP2017078456A
To reliably execute an automatic and immediate gas cutoff in an emergency.An emergency gas cutoff system comprises: hydraulic pumps 21 and 23 which are driven by motors during normal operation and supply hydraulic pressure to a hydraulic...  
JP2017072578A
To provide a monitoring device capable of monitoring a pressure state of fluid without attaching a measuring instrument by drilling a hole on the wall of a chamber.A monitoring device 1 includes a first heat flux sensor 10a, a second hea...  
JP6112085B2  
JP2017067251A
To secure safety at the time of failure of a working machine which can be operated by both ordinary control and remote control.At the time of performing ordinary control, a controller causes an SOL 3 of a second pilot valve 2 to be excit...  
JP2017062025A
To solve a problem on difficulty in management of a use level of each pump in a plurality of pump systems to prevent increase of usage of a part of the pumps to the other pumps, and decrease of related life cycle.A method includes recept...  
JP6103131B2  
JPWO2015107662A1
A hydraulic pump (5A), a hydraulic drive, and the 1st control device (81) and the 2nd control device (82) that were mutually connected with the oil pressure control valve (50) so that communication was possible, The 1st manipulate signal...  
JP2017053386A
To provide a work machine of high efficiency in operation in which no working of a hydraulic shovel can be prevented at the time of trouble of a machine control device and its working can be continued.This invention relates to a work mac...  
JP2017053438A
To provide a hydraulic system of a work machine, which can protect a filter provided downstream of hydraulic equipment.A hydraulic system 30 of a work machine comprises: a tank 22 storing hydraulic oil; a hydraulic pump P2 discharging hy...  
JPWO2015011832A1
A lock valve changeover section will switch a lock valve to a released state from a lock state, if a lock member is switched to a release position from a locked position. The operation mistake Monitoring Department maintains a lock valve...  
JP2017044097A
To provide a hydraulic control device which can determine a failure of a selector valve (OSV5) to select the supply/cut-off of oil to/from a piston jet nozzle 15 when using hydraulic variable means (for example, a capacity variable mecha...  
JP2017506296A
The present invention is a track loading type concrete pump which has a concrete diffusion boom (16) arranged on vehicles (12) and vehicles (12), On a boom stop unit (14) attached to vehicles, it is a form of an arm part article (24), A ...  

Matches 501 - 550 out of 3,133