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JP7263218B2 |
To provide a hydraulic circuit device capable of executing high-speed valve control without increasing the capacity of a device, and capable of suppressing deterioration in plant efficiency.When performing a rapid opening operation that ...
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JP7221558B1 |
An air-hydro booster that is excellent in durability, small in size, and can be installed even in an oscillating device is provided. A pneumatic cylinder (10) and a hydraulic cylinder (20) are directly connected, a piston rod (50) projec...
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JP7193174B1 |
A compact hydraulic clamping device, a clamping system, and a clamping method capable of reliably clamping/unclamping a member to be clamped by a single clamping device. A hydraulic clamping device (300) for clamping and/or unclamping a ...
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JP2022186317A |
To output high thrust amplified in a direction drawing to a device side.A thrust expansion device 1 is formed by separating a part configuring a thrust expansion function from an air hydraulic cylinder having an input function inputting ...
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JP2022186318A |
To adjust a movable range of an input rod of an air cylinder attached after the production.In a thrust force magnifying device 1, a retraction stopper 361 which contacts with a hydraulic chamber 8 side end surface of an input side lid 3 ...
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JP2022146715A |
To provide a work machine capable of suppressing energy from being consumed while securing pilot pressure high enough to drive a control valve without using a pilot pump in a standby period for work.A work machine comprises: a main circu...
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JP7063434B2 |
A pressure booster (10) is provided with a pilot switching valve (78) that can be brought into contact alternately with a first piston (42) and a second piston (46). The pilot switching valve includes a movable valve element (88) inserte...
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JP7058134B2 |
To provide a cylinder device with large stroke, using an air hydraulic cylinder.A pneumatic chamber 20 is composed of a first pneumatic chamber for pressurizing a first piston 11, and a second pneumatic chamber for pressurizing a second ...
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JP7058135B2 |
To provide a cylinder device with large stroke, using an air hydraulic cylinder.A pneumatic chamber 20 is composed of a first pneumatic chamber 21 for pressurizing a first piston 11, and a second pneumatic chamber 22 for pressurizing a s...
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JP7028757B2 |
To provide an air pressure-fluid pressure conversion booster which is downsized compared to conventional products.A double cylinder type booster 20 includes: an air cylinder part 21; a first fluid pressure cylinder part 31 provided at on...
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JP6999439B2 |
To provide a cylinder device with large stroke, using an air hydraulic cylinder.A pneumatic chamber 20 is composed of a first pneumatic chamber 21 for pressurizing a first piston 11, and a second pneumatic chamber 22 for pressurizing a s...
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JP6997015B2 |
To provide a cylinder device with large stroke, using an air hydraulic cylinder.An output rod 7 formed on a third piston 13 is extended to an output side of a cylinder 2. A transfer pneumatic chamber 85 is formed in adjacent to an input ...
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JP6970781B2 |
To provide an energy recovery device capable of suppressing the occurrence of cavitation when starting a filling process and finishing the process.An energy recovery device includes: first and second cylinder devices which are connected ...
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JP6969971B2 |
To shorten the entire length of a fluid pressure cylinder.An inside cylinder 40 and a pneumatic supply rod 22 are coaxially arranged respectively in an outer cylinder 10 and an inner cylinder 40. Moreover, a first piston 30 is arranged b...
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JP2021156380A |
To provide a boosting pressure output stabilizer capable of outputting secondary pressure of a pressure booster in a stable state.A boosting pressure output stabilizer comprises a first cylinder 12 having a first chamber 24a and a second...
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JP6937340B2 |
To provide a hydraulic booster device having a quiet, small and light structure.A hydraulic booster device 1 includes: a hydraulic cylinder 4 having a changeover valve part 2 and a pressure boost part 3; a direction control part 7 having...
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JP6938829B2 |
This pressure booster (10) having arranged therein drive cylinders (14, 16) on both sides of a boosting cylinder (12) is provided with: a pair of pilot valves (72, 74) that are actuated when pistons (36, 38) of the drive cylinders abut a...
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JP6937341B2 |
To provide a hydraulic booster device having a small, light and quiet structure.A hydraulic booster device 1 includes: a hydraulic cylinder 4 having a changeover valve part 2 and a pressure boost part 3; a direction control part 7 having...
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JP3233568U |
To realize stable pressure control when performing a pressure resistance test, and to perform a pressure resistance test (with a small flow rate of high pressure water) without requiring an amount of high pressure water according to a si...
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JP6875730B2 |
To provide a hydrostatic pressure actuator driving system that facilitates weight saving.A hydrostatic pressure actuator driving system 1 has a hydrostatic pressure actuator 10 driven by hydrostatic pressure, a gas generation device 20 t...
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JP6841012B2 |
To provide a booster for a high-lift work vehicle which shortens a time necessary for crimp work.A booster 12 for a high-lift work vehicle 1 comprises a pressure sensor 14 for detecting the pressure of a working fluid which is sent to a ...
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JP6799238B2 |
Provided is a multi-stage multipurpose hydraulic pressurizer with a variable pressurization rate, comprising a multi-stage pressurizing structure part, a hydraulic oil loop, a control part of the hydraulic oil loop, a pressurizing fluid ...
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JP6787905B2 |
A pressure intensifier device increases pressure in a pressurized fluid chamber of a piston/cylinder unit. The pressure intensifier device has a pressure intensifier cylinder and a pressure intensifier piston, which is guided in an axial...
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JP6764016B2 |
The present disclosure relates to a high-efficiency transmission free forging hydraulic press and an operation method thereof. The high-efficiency transmission free forging hydraulic press comprises: a hydraulic cylinder, a hydraulic pum...
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JP6711160B2 |
To provide a boosting device for a vehicle for high-lift work capable of supplying a working fluid to a hydraulic tool without providing a direction control valve for a relief valve and without limiting a flow rate of the working fluid d...
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JP6712111B2 |
An ultrahigh pressure generator is disclosed. The ultrahigh pressure generator has a pressure intensifier that discharges a fluid at ultrahigh pressure. The pressure intensifier uses a working medium and includes a double acting drive cy...
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JP6712110B2 |
To execute a pressure cycle test of a pressure vessel by a simple device constitution of high performance.A single-acting booster 2 has a driving cylinder 14 having a first chamber 12 and a second chamber 13 defined by a piston 11 driven...
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JP6693973B2 |
A method for the production of a bladder accumulator (10) that separates two media chambers (16, 18) from one another in a storage housing (12) by a bladder body (14). The following production steps include extruding a plastic tube over ...
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JP2020070927A |
To ensure high expandability with respect to input actuators, other thrust expansion devices, and expansion units.In a thrust expansion device 1b, an opposite surface that faces an output surface on which an output-side lid 5 where an ou...
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JP2020056500A |
To provide a cylinder device with a large stroke, which generates large thrust in both directions in an axial direction.In a cylinder device 1, a center piston 12 is arranged in a cylinder 2, and a first mechanism portion 1A on a right s...
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JP2020056499A |
To provide a cylinder device with a large stroke using an air hydro mechanism, which effectively uses increased hydraulic pressure for fixing the air hydro mechanism.By making an outer peripheral surface of a second hydraulic chamber 32 ...
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JP6673554B2 |
A pressure booster constituting a cylinder apparatus is provided with a first piston and a second piston that are coupled to each other by a rod. A connection member provided to the second piston is configured so as to be displaceable fr...
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JP6665985B2 |
A pressure booster is equipped with a pair of cylinders provided on both sides of a center unit, pistons each disposed inside the pair of cylinders, and a piston rod connecting the pistons. Each of the cylinders has a drive chamber and a...
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JP6649400B2 |
The present invention relates to a hydraulic cylinder integrally comprising a booster pump, the hydraulic cylinder comprising: a first main body part divided into an upper cylinder and a lower cylinder such that a pressure intensifier ca...
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JP6572872B2 |
When a fluid is supplied to a first pressure-boosting chamber (32a) and/or a second pressure-boosting chamber (32b) of a pressure booster (10, 10A, 10B), either a first electromagnetic valve unit (22) supplies a fluid discharged from a f...
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JP6559704B2 |
The travel end expansion valve (1) for a piston type pressure converter (2) whose master cylinder (3) and slave cylinder (4) define a master chamber (9) and a slave chamber (10), respectively, includes an expansion master cylinder (12) w...
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JP6517529B2 |
An apparatus (10) for the controlled pressurization of gas cylinder actuators connected to a single gas filling line, comprising - means (11) for controlling and recovering a pressurized gas flow originating from pressurized gas supply m...
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JP6509860B2 |
The reversible hydraulic pressure converter with tubular valves (1) comprises a medium-pressure stage (44) consisting of a medium-pressure cylinder (2) and a medium-pressure double-acting piston (3), the position of which is transmitted ...
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JP2019044965A |
To provide a cylinder technology using an air hydro cylinder capable of occurring a long stroke and large thrust in both directions of an axial direction.In a cylinder 2, two air hydro devices A and B are formed bilateral-symmetrically i...
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JP2018084260A |
To simplify an inner structure of a booster, and to reduce an appearance size.A first position detection sensor 70a and a second position detection sensor 70b of a booster 10 detect a position of a first piston 44 or a second piston 46. ...
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JP2018059520A |
To provide a pressure intensifying device capable of controlling pressure transition of hydraulic oil carried to a hydraulic tool and controlling maximum pressure of hydraulic oil.A pressure intensifying device 12 for a work vehicle 1 us...
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JP2018059521A |
To provide a pressure increasing device for a high lift work vehicle equipped with a hydraulic type crimp tool capable of holding a compression object without deformation.A booster apparatus 12 for a vehicle 1 for high lift work to feed ...
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JP6196524B2 |
The invention provides a hydraulic tube expansion device. The device is of a structure which can pressurize liquid accurately with good reproducibility to control the pressure of the liquid to be the expected pressure and enable maintena...
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JP2017512657A |
In a press machine, at least one sealed hydraulic drive unit 2 can switch from an operating mode that constantly exceeds the basal pressure that exceeds the ambient pressure to a static mode inside the hydraulic drive unit 2. is there. F...
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JP6072452B2 |
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JP6014536B2 |
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JP5985222B2 |
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JP5972625B2 |
To provide a fluid pressure increasing/decreasing machine that can continuously supply an output pressure having a pressure higher than an input pressure and a pressure lower than the input pressure.An oil pressure increasing/decreasing ...
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JP5968695B2 |
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JP5965926B2 |
A working fluid supply device (13) is provided with: a main body part (31) in which a housing chamber (30) is formed; a first piston (34) which is disposed in the housing chamber (30) and vertically advances and retreats; and a second pi...
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