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JP3368052B2 |
PURPOSE: To provide a compressed air booster which can remarkably reduce energy loss by enabling usage of air which is used in a compression driving during foreward moving of a cylinder in the compression driving again during backward mo...
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JP2003013904A |
To provide a hydraulic intensifier with a miniaturized pump, dispensing with a selector valve, and having less noise to be generated.The hydraulic intensifier comprises two boosters 5, 5'; each booster being equipped with pressure pumps ...
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JP2003013903A |
To obtain an electronic controlled pneumatic hydraulic pressure generator which reduces the difference between generated and desired hydraulic pressures by detecting constantly a compressed air pressure applied to the pneumatic hydraulic...
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JP2002539387A |
A control system for a hydraulic transformer has a hydraulic system for providing hydraulic pressure to the hydraulic transformer, a controller connected to the hydraulic transformer, the controller for determining the input pressure pro...
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JP2002322956A |
To prevent a hydraulic fluid from being mixed with an addition liquid.An addition liquid supply device is provided with a main body 21 in which a spool hole 29 is disposed, a spool 22 which is slidably inserted into the spool hole and di...
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JP2002295410A |
To provide a service water pressure utilizing device capable of suitably utilizing even at a facility to utilizing water.Since a support body 3 is driven by a cylinder 4 and a pump 5 by utilizing a pressure of service water, there is no ...
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JP2002533609A |
(57) [Summary] The present invention is a device that converts the energy stored in compressed air into mechanical work, in order to relax at least one compressed air container (1) for storing compressed air and each of them to relax the...
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JP3331152B2 |
A sealed hydraulic intensifier has a sealed hydraulic cylinder actuator having a cylinder defining a piston chamber, a piston fitted in the piston chamber of the cylinder, and a piston rod connected to the piston, and a pressure controll...
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JP2002531792A |
A releasable check valve for use with very high system pressures. The check valve is formed such that the poppet piston is relatively smooth-running and that good action and a long service life of the seals are obtained, wherein the rece...
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JP2002266801A |
To supply the low pressure by oil from a storage tank when the load of work is light, automatically supply the oil of high pressure when the load is increased and arbitrarily operate plural works at random.This equipment is provided with...
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JP2002250301A |
To solve such problems that, when the pressure of nitrogen gas to be boosted is varied when only one set of boosting valves are used, it is difficult to maintain the pressure of high-pressure nitrogen gas after boosting in a specified st...
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JP2002527296A |
The invention relates to a fluid-actuated working device comprising a housing (2) and a piston rod (6) which can be displaced with regard to the housing (2) by fluid force. At least one control valve (38, 38') which can be actuated accor...
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JP2002227801A |
To solve such problems with a booster valve capable of providing a high pressure nitrogen gas with a rather low production cost that noise is generated to provide uneasiness to those people therearound when operated for boosting nitrogen...
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JP2002213405A |
To provide an actuator 20 for selectively displacing an output member 23 against the opposed load L, in response to an output 24 of a motor 23.This actuator includes a first power transmission mechanism 50 for displacing the output membe...
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JP2002202049A |
To provide a fail-safe mechanism of a motor-driven hydraulic pressure generator capable of surely generating hydraulic pressure even when failure is caused in an electric system.This fail-safe mechanism of the motor-driven hydraulic pres...
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JP2002155902A |
To provide a multistage booster capable of setting the pressure of a secondary side at plural sages with one booster and capable of supplying the various high pressure in response to a load.In this multistage booster included in a fluid,...
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JP2002144089A |
To provide a pressurizing device which makes it possible to obtain great working power in a working unit while assuring a relatively large stroke.A boosting section of the pressure attachment equipped with the boosting section driven by ...
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JP2002106502A |
To provide a compact fluid booster capable of supplying secondary pressured fluid of high pressure and furthermore, quickly actuating an actuator.The fluid booster constitutes to establish an outside cylinder body 10 including three cyli...
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JP2002089502A |
To provide a booster capable of operating with using a designated pressure of hydraulic fluid itself as a power source by just only supplying hydraulic fluid from an outside, capable of continuously outputting, small in size, capable of ...
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JP2002035994A |
To provide a booster and a press forming machine with it, which is able to put forth larger working force while ensuring comparatively large stroke.A first cylinder 21 and a second cylinder 22, whose cross section is larger than the firs...
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JP2001317501A |
To provide a booster intensively driving a hydraulic cylinder at a high speed.A first pair of pistons 10 are inserted into a housing 6 retractably. The right edge part of a second input piston 20a in a second pair of pistons 20 is insert...
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JP2001248611A |
To provide a clamp device provided with a fluid pressure cylinder having a boosting function of pressurizing oil in a hydraulic cylinder by gas pressure of a gas spring for generating high pressure oil pressure so as to generate a strong...
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JP2001246507A |
To provide a tool fixing device for the main spindle of a machine tool, capable of generating strong energizing force by means of a fluid-operated cylinder by providing the fluid-operated cylinder with a pressure intensifying function to...
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JP3194047B2 |
PCT No. PCT/CH96/00386 Sec. 371 Date May 1, 1998 Sec. 102(e) Date May 1, 1998 PCT Filed Nov. 1, 1996 PCT Pub. No. WO97/17546 PCT Pub. Date May 15, 1997In order to maintain high efficiency close, to isothermy despite high frequencies in a...
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JP2001198755A |
To provide a fluid pressure intensifier constructed to avoid an interaction with the other structure in the use mode attached to a pallet, a jig, etc. A device body 22 which has an input port 31 and an output port 30 and is placed in suc...
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JP2001124002A |
To provide a preloading type booster eliminating man-hours for connecting a booster and a hydro-pneumatic converter as well as the necessity of securing extra space for installing a hydro-pneumatic converter. An air cylinder 1 for pressu...
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JP2001115953A |
To provide a device capable of jetting a cleaning liquid at a substantially constant jet pressure continuously and efficiently without increasing the number of pollution sources. In this device, the cleaning liquid is sent from a liquid ...
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JP2001090702A |
To perform also driving of strong force in addition to forward/ backward driving by a servomotor. This driving gear, comprising a servomotor 10, transmitting mechanism 30 transmitting its output to an operating part 70, and a converter m...
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JP2001059501A |
To enhance responsiveness to stroke changeover, reduce a radial size for compactness and relax accuracy need in working parts. A pressure intensifier 3 and a control valve mechanism 4 are provided inside a main case 2, a changeover of an...
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JP2001020902A |
To provide a low price high pressure/low pressure switch type hydraulic booster.This hydraulic booster is provided with two hydraulic pressure chambers 12 and 13 which are divided on both sides of a first piston 3, a second piston 17, wh...
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JP2000329102A |
To provide an automatic booster automatically continuing the reciprocating operation by operating a fluid pressure by providing a booster cylinder and an automatic changeover valve which changeovers the moving direction of a piston by th...
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JP3094032B2 |
A means for receiving and subsequently emptying hydraulic fluid from a hydraulic system is described. It comprises a working cylinder (1) and a supply conduit (8) disposed between a pump and the working cylinder for supplying hydraulic f...
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JP3091961B2 |
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JP3082029B2 |
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JP3070654B2 |
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JP2000199501A |
To operate at a high pressure according to an increase in external pressure during operation by low pressure fluid. A part of a rod passage 12 is closed, and a passage 11 is closed during operation, and a cylinder 2, which is fitted with...
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JP3048581B2 |
Method for filling an accumulator space of a hydro-pneumatic pressure amplifier with oil and the design of such a hydro-pneumatic pressure amplifier, in which the accumulator space (9) has a venting bore (25) which, also employable as an...
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JP2000097162A |
To constantly attain stable pump efficiency by automatically discharging bubble produced in an oil chamber.A single piston chamber 5 and two oil chambers 4A, 4B are provided in parallel to each other on pump casing 22 to be installed pra...
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JP2000087902A |
To optionally supply liquid of high pressure by opening a passage communicating a piston rod with a conduit for operation and closing a passage communicating a second chamber with a third chamber before operation of a device, and closing...
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JP2000087906A |
To actuate just by supplying a working fluid from outside and using a fluid pressure of the working fluid as a power source, and to provide a simple constitution which is capable of continuous output. An advance pressure receiving mechan...
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JP3019671B2 |
PURPOSE: To reduce fluctuation of delivery hydraulic pressure sufficiently without using an accumulator for superhigh pressure so as to enhance the performance and life of hydraulic equipment such as a booster by connecting two boosters ...
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JP3007539B2 |
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JP3003071B2 |
To solve problems such as the increment of cost because of being long, large and heavy, the necessity of a special structure and a special tool for preventing dangerous, and the increment of the output of a fluid pressure cylinder as the...
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JP3003074B2 |
To provide a valve driving device which can be used when there is no supply source of pressurized air or even when there is no pressurized air and there is a danger that flammable gas such as natural gas in a high pressure pipe line is r...
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JPH11324743A |
To surely adjust cam shaft even at the time of starting an engine by appling pressure load to a cam shaft adjusting device by an oil pressure circuit of a steering assist mechanism in the engine start stage, and by a lubricating oil pres...
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JP2601402Y2 |
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JPH11303601A |
To efficiently amplify output by interposing a gear operated as a balance, a balance shaft, a pulley and a roller between a pressure intensifier and a cylinder mechanism arranged opposite to each other in a pair, and connecting the prima...
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JPH11287202A |
To make a structure compact by providing a holding means maintaining a forcibly locking condition to a cylinder wall part in a pressure intensifier provided in a fluid pressure piston front end part and moving inside the cylinder togethe...
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JPH11287201A |
To save a space by providing a first block body possessing a primary pressure input port and a second block body possessing a secondary pressure output port in a pressure governor main body and allowing relative rotation of both block bo...
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JP2955220B2 |
To use a hydraulic cylinder of internal diameter smaller than the internal diameter of a conventional hydraulic cylinder and attain saving of energy by reducing a use amount of pressure fluid. A device is constituted by having the first ...
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