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Patent Searching and Data


Matches 401 - 450 out of 911

Document Document Title
JP2001132838A
To lubricate rotary elements of a hydraulic pressure transmitting module in a simple structure. This loop flushing circuit includes a three-position/three-port pilot pressure actuating loop flushing valve 40 having an output port 46 for ...  
JP2001016827A
To extend the service life of electrical component, including an electric motor with a simple structure, by cooling electrical components provided on a construction machine with hydraulic oil that operates a hydraulic actuator.Excavating...  
JP2001012411A
To cope with the pressure of gas in a gas chamber by partially fixing one of pistons to the gas chamber, and the other piston to a hydraulic chamber, and limiting the maximum pressure in a hydraulic chamber as a function of the gas press...  
JP2001012402A
To provide a hydraulic pressure control device which can prevent excessive pressure reduction under the state of pressure reduction, and precisely control the hydraulic pressure value to be a target value.A first positive displacement pu...  
JP2000356202A
To generate large thrust by a servomotor of low torque by comprising a control cylinder connected to a driving cylinder, and the servomotor for driving the control cylinder.A driving cylinder 1 and a control cylinder 3 are hydraulically ...  
JP2000329103A
To provide a cam synchronizing mechanism capable of exhausting generated bubbles, and in which a hydraulic fluid is easily replenished. A hydraulic fluid is supplied, and discharged between a ram hydraulic cylinder 4 reciprocated by a ca...  
JP2000314402A
To provide an enlarged operating amount of displacement of a piezoelectric element by a hydraulic pressure enlarging actuator. A pressurized chamber 5 and a pressure receiving chamber 9, whose transverse internal cross-section is smaller...  
JP2000283107A
To eliminate a large arranging space in one place by arranging an engine as a power source, a power generator driven by the engine, and a plurality of electric motors rotated by power supplied from the power generator, and operating each...  
JP2000233796A
To provide power tilting equipment for a ship, propeller capable of stably positively carrying out a required tilting operation by insuring the positive actuation of two-piece type main valves. This power tilting equipment for a ship, pr...  
JP2000161306A
To perform manual operation in emergency easily and safely even in an operation cylinder provided with two operation chambers with different volumes in the piston side and the piston rod side.The double-acting hydraulic operation cylinde...  
JP2000154802A
To obtain an operation amount enlarged the displacement amount of a piezoelectric element by a real hydraulic enlarge actuator.A first pressure camber 5 is communicated with a second pressure chamber 9 with a small lateral inner sectiona...  
JP2000097203A
To use a lift in an atmosphere where rain water comes down or flammable gas is generated by synchronously control two hydraulic actuators with a high degree of accuracy with the use of a small-sized and inexpensive arrangement.A hydrauli...  
JP2000501686A
(57) The base (41) which is the jack for 3 axis type positioning (40) with which at least 1 axis was motorized among the summary 3 axis (X, Y, Z), and was equipped with the equipment (44) for displacing perpendicularly a movable support ...  
JPH11347973A
To preclude a drift phenomenon in a micro-tool such as a micromanipulator device caused by a volume change of a hydraulic liquid originating from temp. variation. The operation part 3 of a micromanipulator device 1 of hydraulic remote co...  
JPH11347972A
To preclude a drift phenomenon in a micro-tool such as a micromanipulator device caused by a volume change of a hydraulic fluid originating from temp. variation. The operation part 3 of a micromanipulator device 1 of hydraulic remote con...  
JPH11270503A
To improve an energy efficiency by controlling pressure, a flow rate, and a flow direction of an operating fluid of an actuator such as a cylinder, without using a pump, a pressure control valve, and a flow rate control valve. This devic...  
JPH11268688A
To make a tilt cylinder device more compact by providing a delay mechanism inside a hollow piston rod. An external oil passage 61 for communicating an oil chamber S6 with an oil chamber S7 is provided outside a cylinder 51. A pump 72 and...  
JPH11255104A
To match a device to various purposes without slightly changing a valve device or by slightly changing it by determining the spring force so that the device has a prescribed operating force demand. An operating member 12 is held in the n...  
JPH11201103A
To perform remote manual operation of a positioning device for optics by hydraulic operation instead of electric operation. Two cylinders 6 are intercoupled through an oil-contained tube 1, and a screw to move a piston 3 to one and a pus...  
JPH11188666A
To provide a hydraulic remote control type micro-manipulator whose micro tool front end will not move even if a temperature change occurs. A bimetal type compensator 32 is fitted between a piston 36 and a screwing member 31. The bimetal ...  
JPH11182415A
To make a device simple in constitution, and unselective in work liquid. A ball screw 3 is secured to the output shaft 1a of an power motor 1 via a reduction gear 2, and a nut member 4 threadedly engaged with the screw 3 is fixed to one ...  
JPH11166503A
To provide a cylinder drive mechanism in which it is not necessary to feed under pressure fluid such as oil to a cylinder from the ground. A cylinder drive mechanism comprises an input cylinder 4, an output cylinder 5 and a fluid pressur...  
JPH01199635A
PURPOSE: To easily mix powdery granular materials by feeding back the powdery granular materials stored in a large capacity hopper to a small capacity hopper continuously, dropping all the materials in the small capacity hopper into the ...  
JP11099635A
To do a greater number of operations simply without an additional troublesome pressure step controller by installing an actuation mechanism in which a pressure converter is equipped with an actuation mechanism surface which is loaded wit...  
JP11090877A
To prevent the occurrence of bubbles by reducing the pressure difference between the right and left chambers divided by one and the other pistons of one and the other cylinders. A pipe 9 communicates one chamber 42 faced to the other cha...  
JP11037104A
To completely prevent the intrusion of foreign matter from the outside even under bad conditions. A driving system is provided with cylinders 1, 2, 3 and a piping passage 4, which connects one out of chamber 30 or 31 of a cylinder 3 to o...  
JP11037105A
To completely prevent the intrusion of foreign matters from the outside even under an adverse condition by composing a cylinder driving system of an input side part, an output side part and pipelines connecting the input side part and ou...  
JPH1130203A
To provide a driving system for a rotary type fluid pressure equipment, capable of thoroughly avoiding foreign matter for entering from outside even under adverse conditions. This device is provided with 1st and 2nd cylinders 1, 2, a pip...  
JPH10329546A
To provide an opening and closing control device which eliminates faults due to the degree of height of an operator and is easy to hold a back door at any opening by remotely controlling the opening and closing of the back door from an o...  
JPH10331761A
To perform boosting and reducing of pressure if hydraulic pressure with high responsiveness through an input and a stop of heat, in a heat-driven type hydraulic pressure generating device to generate the hydraulic pressure by external he...  
JPH10513248A
(57) Reducing valve to which pressure is reduced within a summary double acting encapsulated type oil pressure system at the time of uninhabited. A valve consists of a valve housing (1) which has a hole (6), and two slide valves (21, 22)...  
JPH10325401A
To provide a bilateral position and force transmission device to be excellent in complementary ability between operation of a cylinder on the master side and operation of a cylinder on the slave side and reduce size, and to provide a reh...  
JPH10512658A
(57) The cylinder controlled valve in which straight line reciprocating movement is possible between the position has the summary valve seat (11) and a valve element (12), and open about the valve seat (11), or the closed position, The v...  
JPH10318204A
To perfectly prevent the intrusion of foreign matter from outside even in the bad condition by connecting both rods of an input side cylinder and an output side cylinder having a different pressure receiving are to each other, and connec...  
JP2823678B2  
JPH10274175A
To prevent leakage of brake fluid from a rotary type pump when a pressure at the suction port of the rotary type pump is increased to a high value. A casing 50 incorporates outer and inner rotors 51 and 52 and has a central hole 50a in w...  
JP2807751B2  
JP2805324B2  
JPH10234509A
To provide a vertically movable chair appropriate for a physically handicapped person to stand up when he/she is on a tatami or inversely to sit down on the tatami. In a chair of the structure with a vertically movable seat, the seat of ...  
JPH10236295A
To surely supply braking liquid required for controlling by a modulator by means of a liquid pressure pump. Modulators MD1 and MD2 are provided between a master cylinder MC and wheel cylinders Wfr and Wrl, and first and second liquid pre...  
JPH10184602A
To inexpensively manufacture a partition piston having the lightness in weight, and to keep sufficient sealing effects at any incorporated position. A partition piston 13 accommodated in a cylinder hole 11 is formed of a sleeve deep draw...  
JPH10184605A
To provide a static pressure transmission gear capable of being driven with high repeatable accuracy to eliminate an overload. An enclosed hydraulic circuit is provided having a consumption part connected to a reversible hydraulic pump b...  
JPH10141303A
To secure required fluid pressure at all times by automatically compensating a fluid pressure circuit for the working fluid pressure loss as required or periodically. A cylinder device 70 for compensating oil pressure loss is provided in...  
JP2736336B2  
JPH109202A
To machine steel materials or the like of small size. A bending device 1 is made up of a pump unit 3, a bender unit 5, and a connecting pipe 6 for connecting both the units 3, 5. The pump unit 3 is set to an operating device 2 so that it...  
JPH09177667A
To change the capacity of a hydraulic tank according to the surplus flow rate or insufficient flow rate used of a fluid pressure actuator. A hydraulic package is constituted such that a driving motor 2 and a hydraulic tank 10 are dispose...  
JPH09170601A
To solve the problem that the pressure of the suction part of a hydraulic pump is dropped unusually, cavitation is generated and the generation of a noise and the destruction of the hydraulic pump are brought, when the rotational speed a...  
JPH09166101A
To perform non-smooth operation of a hydraulic actuator due to abnormal reduction of a circuit pressure during movement of an object when an object having high inertia is moved from a stop state by the hydraulic actuator. A hydraulic cir...  
JPH09505132A
(57) It has a summary 従動 cylinder (1) and a master cylinder (72), Equipment for the double-acting fluid pressure system which can move the piston (76) of a master cylinder to the position in which fluid can flow into both directions ...  
JPH0988906A
To provide a liquid hydraulic drive device with a flywheel being small and light weight, with enough endurance against the variation of load and capable of being controlled easily and accurately. An electric motor is connected directly w...  

Matches 401 - 450 out of 911