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WO/1988/008096A1 |
Diaphragms (1, 4, 7, 15) are composed of a rubber-like elastic material (2, 5, 8, 16) and sheet-like members (3, 6, 9, 17) made up of metal foils or members impermeable to gas, such as a resin membrane etc. This diaphragm is used for suc...
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WO/1988/005134A1 |
A piston storage device has a piston (13) with two collars (15, 16) separated by a central necked portion (14). A sealing means is arranged in both piston collars. The sealing means facing the gas chamber (18) is designed in such a manne...
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WO/1988/003098A1 |
An arrangement for a hydraulically operated lifting arrangement, for example a so-called tail lift, comprising at least one cylinder/piston unit (8) for actuating a lifting platform. This is connected via a hand valve (7) to the pressure...
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WO/1987/007685A1 |
The pressure vessel comprises an accumulator (10) having a piston (16) disposed in a bore (14). The piston (16) has gas under pressure on one side thereof maintained within the bore (14) by means of a multiple seal in an opening (26) hav...
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WO/1987/006655A1 |
The pressure accumulator (10) comprises a cylindrical housing (12) having a bore (14) with a piston received slidably therein. The piston (30) has an H-shaped cross section and includes a reduced diameter portion (34) extending longitudi...
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WO/1987/001161A1 |
A fluid-driven power plant (10) includes a motor (20) and a combustion energy input device combined in a closed, pressurized system. A balance cylinder (26) provides variable low pressure fluid storage within the system and also operates...
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WO/1984/003127A1 |
A device in machines (1) which are driven by means of a hydraulic cylinder, such as hydraulic presses and the like, and which has at least one pump (5) for the hydraulic fluid which pump is driven by a driving machine (6) through an ener...
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WO/1982/004290A1 |
An internal combustion driven fluid pumping apparatus for accumulating fluid pressure to be applied against a load includes a two-stroke combustion cylinder (15) having a piston (18) drivingly connected to a piston (21) of a linearly dis...
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WO/1981/003309A1 |
A hydraulic circuit (10) has a fluid supply source (12) to a work element, such as a control valve (14) for a work implement, connected by a first fluid pathway (18). A second work element (16), such as a master cylinder reservoir of a b...
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WO/1981/002769A1 |
A pneumohydropumping installation comprises a two-way pneumohydraulic booster (2) the pneumatic chambers of which are connected with the outlets of a power pneumatic distributor. The hydraulic chambers of the booster (2) are connected wi...
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WO/1981/000598A1 |
A fluid control system for selectively holding a work implement, such as a blade in a motor grader or the like, in a fixed position in a first operating mode, and for selectively providing a shock absorbing system (70, 72) for the implem...
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WO/1980/002446A1 |
In a control (28) for a hydraulically operated draw works or the like having a hydraulically disengaged brake (14), a transmission (10, 12) and a brake control valve (114, 122), the improvement including an accumulator (174) having a che...
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WO/1979/001136A1 |
Power supply apparatus having a two part housing (1), the first part (2) containing a motor (4) in a gas environment and the second part (3) containing a pump (5) in a pressurised fluid environment, the second part having an inlet (10) a...
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JP7487426B1 |
An object of the present invention is to provide a pump pulsation reducer that has no moving parts and is easy to use, yet can reduce the pulsation of liquid discharged from a small pump in a relatively low pressure and small flow rate r...
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JP2024067462A |
An object of the present invention is to effectively utilize high-pressure gas discharged from a first chamber of a fluid pressure cylinder. [Solution] A fluid pressure cylinder unit 101, 201, 301, 401 includes a lift cylinder 100, 400 h...
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JP7483942B2 |
The present application relates to an accumulator for a vehicle braking system, comprising a cylinder (10) having an inner surface defining an internal space, a piston (20) accommodated in the internal space of the cylinder in such a way...
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JP7476347B2 |
Disclosed in the present invention is a vehicle braking system comprising an accumulator (40), the accumulator (40) comprising: a cylinder (410), provided with a first end portion that defines a fluid port (412); an end cover (450), moun...
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JP2024515491A |
A hydraulic accumulator, in particular a piston, having a separating member 16 movably arranged in the accumulator housing 10 and separating the two medium chambers 24, 26 from each other and a distance measuring device for monitoring th...
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JP2024048900A |
[Problem] To propose a hydraulic unit that can suppress mixing of water and coolant into hydraulic oil in an oil tank. [Solution] A hydraulic unit (1) includes an oil tank (10) containing hydraulic oil, a hydraulic pump (30) that supplie...
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JP2024507314A |
Separation element consisting of at least two layers of plastic material, one type of layer having media resistance to mineral oil and the other type having low permeability or Being impermeable, these at least two layers are firmly bond...
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JP7431441B2 |
To provide a fluid pressure actuator drive system which can enhance energy efficiency, and a fluid pressure actuator drive method.A fluid pressure actuator drive system 1 has: a gas generation device 2 for generating a combustible gas by...
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JP7424015B2 |
To perform manual adjustment of an oil surface of a pressure oil tank easily.A pressure oil tank oil surface adjustment jig 110 includes: a rod-like adjustment screw 113 which is used to contact directly with an electromagnetic solenoid ...
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JP2024503409A |
A hydraulic accumulator, in particular a membrane accumulator, comprises an accumulator housing 10 and a separation element 12 arranged therein, which separation element separates two medium chambers 14, 16 from each other, the accumulat...
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JP2024503443A |
A hydraulic accumulator, in particular a membrane accumulator, comprises an accumulator housing 10 and a separation element 12 arranged therein, which separation element separates two medium chambers 14, 16 from each other: At least a po...
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JP7421665B2 |
A bladder-type pressure tank includes an outer shell, a bladder, a nozzle, and an elbow pipe. The outer shell includes a liner and a glass-fiber layer covering the outer surface of the liner. The liner includes polyethylene (PE). The lin...
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JP7403953B2 |
Presented herein are systems and methods for attenuating certain pulsations in a hydraulic system comprising a pump and a hydraulic actuator. In certain aspects, an accumulator comprising an internal volume that is divided into a working...
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JP2023176062A |
To provide a hydraulic power unit for a hydraulic elevator that reduces hydraulic oil to be used, and results in reduced product costs and superior environmental performance, and a hydraulic elevator.A hydraulic power unit for a hydrauli...
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JP7389794B2 |
A bellows accumulator has at least one accumulator housing (2) and a separating bellows (20) movably arranged in the accumulator housing (2). The separating bellows 20 has a plurality of bellows folds and separates two media spaces (8, 2...
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JP7381650B2 |
Presented herein are systems and methods for attenuating certain pulsations in a hydraulic system comprising a pump and a hydraulic actuator. In certain aspects, an accumulator comprising an internal volume that is divided into a working...
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JP7376781B2 |
To provide a hydraulic unit capable of issuing a warning before abnormal stop.A hydraulic unit (1) includes: a hydraulic oil tank 10 for storing hydraulic oil; a hydraulic pump (30) that sucks the hydraulic oil in the hydraulic oil tank ...
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JP7369395B2 |
To provide a fluid pressure actuator by which a drive operator can safely perform a drive operation without causing an erroneous operation even in an operation under a severe environment not allowing an easy approach of a person.A fluid ...
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JP7365604B2 |
Provided are a volume change compensation device capable of reducing a manufacturing burden with a simple configuration and a damper device including the volume change compensation device. A damper device 100 includes a rotary damper, an...
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JP7365403B2 |
A bellows accumulator, consisting of at least two housing parts (4, 6) which form an accumulator housing (2), and having a separating bellows (20), which is movably arranged in the accumulator housing (2) and separates two media spaces (...
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JP2023140998A |
To provide an accumulator using an S-shaped bellows, which can reduce its weight while suppressing deterioration in durability.An accumulator according to the present invention comprises an exterior body comprising a bottom, a shell, and...
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JP7355593B2 |
A bootstrap hydraulic reservoir includes a bootstrap chamber to hold hydraulic fluid, a piston chamber fluidly connected to a pressure line of the hydraulic fluid system, a piston having a bootstrap end portion held within the bootstrap ...
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JP7352563B2 |
A damping device for fluids subject to pressure pulsations has at least one hydraulic accumulator (2). The accumulator housing (4, 6) contains a movable separating element (18), which separates a gas side (14) from a fluid room (16) and ...
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JP7342106B2 |
A system for charging and discharging at least one hydraulic accumulator (10) can be connected to a valve control device (12). The valve control device (12) has at least one logic valve (14). A shuttle valve (16) and a hydraulically oper...
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JP2023538738A |
A piston accumulator is disclosed having an accumulator housing 10 and a separation piston 12 that is longitudinally movable within the accumulator housing 10 and separates two medium chambers 14, 16 from each other, which separates the ...
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JP2023121601A |
To provide a bubble suppression device which can suppress outflow of bubbles to a pump from a hydraulic oil tank.A bubble suppression device 33 that is arranged on the side of an inflow part 32 of a hydraulic oil tank 12 to which hydraul...
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JP2023116327A |
To provide a load control device which can suppress an unintentional behavior resulting from a control object when an abrupt load is applied to the control object.A load control device of the present invention comprises an accumulator co...
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JP7329001B2 |
A hydraulic accumulator, in particular in the form of a piston accumulator, has an accumulator housing (10) and a separating element (20) arranged in the housing. The separating element is in the form of a piston, which separates a fluid...
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JP2023111425A |
To provide a cap bellows assembly capable of improving endurance of an elastic part fixed to a body part, and an accumulator.A cap bellows assembly seals one end of a bellows provided inside of an exterior body of an accumulator composed...
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JP2023103518A |
To provide a hydraulic fluid tank structure capable of suppressing entry of water and foreign matters, which have been mixed in a hydraulic fluid tank, into a hydraulic circuit together with a hydraulic fluid.A hydraulic fluid tank inclu...
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JP2023103129A |
To provide a manufacturing method and an exterior body of an accumulator, capable of suppressing disconnection of a connection portion during transportation, and deterioration of fatigue strength of the exterior body after connection.A m...
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JP2023530958A |
A first space (20) to which hydraulic pressure is applied, a second space (24) surrounded by a shock absorber housing (14) and having a compressible medium therein, and It relates to a vehicle brake system/pressure damper (10) comprising...
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JP7307740B2 |
A pressure accumulator having an accumulator housing (10) in which a movable separating element (16) separates a gas chamber (12) filled with a working gas from a fluid chamber (14) in a fluid-sealed manner. A monitoring device (46) is p...
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JP7277890B1 |
Kind Code: A1 A completely closed circuit type actuator having a pipe that connects an actuator that converts liquid power into an operating force that moves a target moving body, and a fluid power generation source that supplies the ope...
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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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JP7261180B2 |
A safety system has a valve block (10) to which at least one gas safety valve (12, 14) is connected in a detachable manner. At least one controllable valve (50, 52, 58) is in or at the valve block (10). At least one pressure accumulator ...
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JP7259245B2 |
To provide a liquid pressure damper capable of securing easily flow of a liquid in a liquid pressure chamber even a bladder is detached from a core.A liquid pressure damper comprises for example: a core comprising a base and a first oute...
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