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Matches 401 - 450 out of 3,875

Document Document Title
JP4244507B2  
JP4241747B2  
JP4236151B2  
JP2009505004A
The present invention relates to a control valve unit (9) for a change device of liquid pressure piston engine. A control valve unit (9) possesses a valve housing (34) arranged by a method for which a valve element can be longitudinal di...  
JP2009503380A
A method and a device are used for positioning of a component. A fluid drive device moves a component along with a guide. The position mark of a component is detected by at least one sensor. The output signal of a sensor is supplied to a...  
JP2009019684A
To provide a servo valve which can move a spool to a given position by air pressure irrespective of a gravitational direction even at the time of power failure and can make an actuator operate at a safety side for actuator positioning.Th...  
JP4216099B2  
JP4206194B2  
JP4200284B2  
JP4196518B2  
JP2008298226A
To provide a hydraulic driven device capable of highly accurately controlling a rod position even if a load is not applied to an actuator cylinder by a simple and compact constitution.This hydraulic driven device has a first hydraulic pr...  
JP4194868B2  
JP2008291864A
To provide a cylinder drive unit of simple and compact structure capable of accurately controlling the rod position even in the case wherein noload is applied to an actuator cylinder.There are assembled in the same unit an air tank, when...  
JP4191430B2  
JP4171666B2  
JP2008249024A
To provide a hydraulic actuator having reduced size and weight.The hydraulic actuator 100 comprises an output cylinder 3, a pump 2, a motor 1 for driving the pump 2, a swash plate control cylinder 5, and flow paths 14-16. The output cyli...  
JP2008249027A
To optionally change or adjust an operation position of a piston in a double acting air cylinder by a positioning control mechanism using a sensor and solenoid valves.A first supply solenoid value 25 and a second supply solenoid valve 27...  
JP4152123B2  
JP2008190575A
To provide an operating speed control device for an electropneumatic positioner, capable of preventing sudden and great operation of a control valve when an actuator controlled variable is greatly changed in accordance with a PID control...  
JP2008185171A
To achieve an inexpensive and reliable fluid device by using a control valve capable of being manufactured at low cost without sacrificing safety for surely holding a wing surface in a horizontal direction in flight control of an aircraf...  
JP2008169964A
To provide a hydraulic servo cylinder system which can be used under a high-temperature environment.A pneumatic motor (5) is used as a power source. A bidirectional hydraulic pump (4) is turned by the power of the pneumatic motor (5), an...  
JP4116271B2  
JP4098101B2  
JP4099006B2  
JP4088894B2  
JP2008101649A
To improve responsiveness, and to accurately control a position.A spool 24 is slidably moved in a sleeve 23 arranged in a valve body 22. An inner peripheral groove 25 having a supply port 25a to which compressed air is supplied, an inner...  
JP2008064306A
To provide a mechanism for preventing the operation of a mechanical component when a failure occurs in a hydraulic component connected to the mechanical component.This hydraulic system comprises an isolator 72 built therein near a hydrau...  
JP4058346B2  
JP2008503010A
The method related with the feedback control for electropneumatic control systems and the equipment for it are shown. The electropneumatic control system of illustration is equipped with the electropneumatic master controller and the sec...  
JP4022032B2  
JP2007534079A
The control loop of a control valve operates using the outlet head pressure from a pneuma tic amplifier as a control parameter. A control loop is operated by pressure control mode, and even when the system is operating in the cutoff rang...  
JP2007303583A
To provide a servo valve control device having a control property for smoothing and stabilizing the controlled variable of a servo valve applied for position control. The servo valve control device comprises the servo valve, a setting pa...  
JP2007272611A
To provide a controller for a servo valve allowing setting of a target value having a wide dynamic range in fluid pressure control, and allowing acquisition of a stable control characteristic even in a nonlinear area. This controller for...  
JP3952094B2
To increase the operability, by receiving the position of tools and operator's command signals and correcting the signals and controlling a hydraulic cylinder. A joy stick position detector 220 detects the position of a joy stick control...  
JP2007155075A
To provide an actuator having redundancy for operating a movable rod with an electric or hydraulic means, whichever.The actuator comprises a cylinder 21, a piston 22 arranged in the cylinder 21 and adapted to be moved with the supply/dis...  
JP2007146973A
To improve the reliability and the safety of control by pressurization-controlling a push-side chamber or a pull-side chamber in a pressurization process of the push-side chamber or the pull-side chamber by using a discharge-amount varia...  
JP3927043B2
To provide a feedback mechanism and a valve positioner which prevent the wear and breakage by improving the vibration-proof structure to improve the reliability, and extend a service life. The feedback mechanism 24 comprises a feedback p...  
JP2005315279A5  
JP3904173B2
To provide a hydraulic controller for a working 4 vehicle capable of improving the working efficiency by enhancing the excavation capacity even though the excavated soil is hard and of improving the wear resistance of tire. This controll...  
JP3900537B2  
JP2007057098A
To provide a fluid operation type position adjustment device including a servo means.A supply connecting section 22, a discharge connecting section 23, and a power connecting section 24 are provided adjustably by the servo means 12 arran...  
JP2007040513A
To provide a pilot valve for a positioner preventing the damage of a diaphragm or the like supporting a spool while facilitating replacement of the pilot valve.The pilot valve for the positioner comprises a supply air pressure chamber 22...  
JP3880755B2
To provide a small electric hydraulic servomotor. In the electric hydraulic servomotor 100 for rotating an output shaft 61 according to a rotating speed difference between a rotary shaft 41 and an output shaft 61, a longitudinal groove 7...  
JP2006329314A
To provide a press bonding device using one differential pressure cylinder for increasing a machine tact (a working speed) without using a high speed actuator, separately.The press bonding device comprises a high pressure side first pres...  
JP3851137B2
To provide a high speed driving method and its apparatus for a pressure cylinder capable of swiftly eliminating a wasteful working stroke of a piston rod and a driving lag of the piston rod and improving working efficiency. A servo valve...  
JP2006316949A
To provide a zero adjustment arm used in a positioner capable of effectively preventing harmful effects due to high frequency vibration.The zero adjustment arm is used in the positioner provided with a pilot valve 21 supplying air to a d...  
JP3127171U
[Subject] An air cylinder which has a rod conventionally used by ON/OFF control is used, and an air cylinder drive which can perform precise position control and force control is provided. [Means for Solution] Air cylinder 1 which has a ...  
JP3844167B2
To avoid the stop of the whole control system of a servo valve by outputting the command signal to a spool driving means through a separately provided output means when an abnormality is present in a displacement sensor or a feedback mec...  
JP2006300187A
To provide a hydraulic servo device applicable to various industrial hydraulic machines including a machine tool such as a press, and to accurately control a stroke position of a hydraulic cylinder regardless of the kind of a workpiece.A...  
JP2006522299A
A piston control system is used for controlling the fluid operation type cylinder (12) which was demarcated with the piston (18) arranged in a housing (20) so that it may move between the 1st and 2nd move 端部限 (22 and 24) and which ...  

Matches 401 - 450 out of 3,875