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JP5096973B2 |
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JP5054268B2 |
A method and a device for controlling at least one valve, in response to a detected leak in the system including the valve. An activation signal is generated which opens the valve briefly for flushing purposes and closes it again, or mov...
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JP3178893U |
To provide a ball valve washer structure which enhances slipperiness, extends a service life, is easy to replace, and has a short manufacturing time. A ball valve washer structure includes a housing 1, a leak-proof washer 2, a ring-shape...
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JP5002435B2 |
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JP4979239B2 |
The valve has a body at which a sealing surface is arranged to surround a valve opening. A valve disk is displaced between open and close positions for opening and closing the valve, and another sealing surface is arranged in the disk. A...
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JP4897261B2 |
A vacuum valve comprises a valve housing with a valve opening having a longitudinal axis and a valve seat, a valve plate which is displaceable in a straight line in a displacement direction between an open position in which it releases t...
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JP4842692B2 |
To prevent generation of erosive phenomenon by utilizing advantages of a metallic valve housing, in a valve device for an ammonia refrigerant refrigerating cycle device. The valve housing 11 is composed of a metallic material, and parts ...
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JP4808792B2 |
Provided is a butterfly valve that prevents occurrence of erosion, thereby rendering it possible to secure fine adjustment of a volumetric flow rate of a fluid in an area of low degree of valve opening or in an area of minute degree of v...
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JP4768709B2 |
Embodiments of the present invention feature a method and device for controlling the flow of fluid. One embodiment of the device for controlling the flow of fluid comprises a rotor, stator and compression means. The rotor has a rotor flu...
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JP4741575B2 |
In various embodiments a fluid control device suitable for high pressure analytical instruments includes a housing having an interior surface with an end wall. The interior surface defines a chamber. A valve assembly disposed in the cham...
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JP4723167B2 |
The invention relates to a flushing device for a sealing system on a housing element with a sealing surface and an associated closing element with a radially outer elastic seal, comprising at least one source for a flushing medium, an an...
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JP4693788B2 |
A device for regulating flow comprises a main valve operating under differential pressure wherein the main valve has a main flow inlet and a main flow outlet. The main flow inlet is equipped with a valve seat over which a main shutter is...
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JP4654747B2 |
A check valve (fluid on-off valve device) 1A, capable of attaining high sealability in either case where a differential pressure is high or low, comprises a valve body assembly (valve body) 3A contacting and separating from a valve seat ...
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JP4535308B2 |
To provide an air conditioner, in which a dehumidification operation can be performed in a reduced noise for a long period of time. A use-side heat exchanger constituting a refrigerating cycle is divided thermally in a 1st heat exchanger...
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JP2010164149A |
To prevent a valve seat portion of an on-off valve body from being strained to cause a refrigerant leak without increasing the wall thickness of the on-off valve body and without increasing the dimensions of the valve body. A resin coati...
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JP4475860B2 |
Electric control device for a motor-driven derailleur for bicycles, comprising: a supporting body (12) provided with means for fixing it to a handlebar (14) of a bicycle, a brake control lever (16) hinged to the supporting body (12), a p...
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JP2010121735A |
To provide a valve improved in the wear resistance, corrosion resistance and durability of a valve body, a valve seat and the like.Provided are a valve body (14) having two openings (15a, 15b) and a flow path (12), a valve stem (26) pene...
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JP4472297B2 |
The steam valve includes a fast-acting control valve and stop valve acting against a valve seat in a steam flow passage in a closed position. An outlet passage below the valve seat has transition walls therebetween, affording a smooth, c...
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JP2010112704A |
To provide a valve and a valve system ensuring appropriate sealability to reduce or eliminate wear in a regenerative thermal oxidizer for treating a volatile organic compound in a high-flow-rate and low-concentration emission matter from...
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JP4422521B2 |
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JP4411422B2 |
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JP4404500B2 |
A unitary slot valve actuator is in a vacuum body between process and transport modules. A separate valve is provided on the unitary actuator for each of two valve slots, each slot being closed or opened according to the position of the ...
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JP4327269B2 |
The seal has a central toroid metal body (31) inside a metal covering layer (32), with the central body made up of a series of elements which form a spiral spring, the elements being adjacent to one another but not joined. The spiral spr...
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JP4316655B2 |
Provided is a butterfly valve that prevents occurrence of erosion, thereby rendering it possible to secure fine adjustment of a volumetric flow rate of a fluid in an area of low degree of valve opening or in an area of minute degree of v...
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JP4313918B2 |
PURPOSE: To reduce a production cost, easily, quickly set a ball into a valve body, and release the pressure within a pipe even if abnormal pressure is generated in the valve body. CONSTITUTION: This ball valve comprises the valve body 2...
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JP4280151B2 |
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JP4258938B2 |
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JP4255363B2 |
A valve body main unit has a circular step surface facing a circular valve seat surface of a valve chamber formed on a terminal end part of a fuel supply path to a fuel tank and a circular groove with one groove wall extending from the c...
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JP2009074669A |
To improve a performance for closing a valve seat with a valve body in a valve structure.In this valve mechanism 10, an affinity membrane 20 formed on a surface of a valve seat 16 has affinity with liquid. The affinity membrane 20 absorb...
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JP4252618B2 |
Provided is a butterfly valve that prevents occurrence of erosion, thereby rendering it possible to secure fine adjustment of a volumetric flow rate of a fluid in an area of low degree of valve opening or in an area of minute degree of v...
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JP4213437B2 |
The valve needle has a one-piece shaft (4) provided with a front shaft end section (6) forming the needle point. A piston (8) is attached to the shaft, with the shaft and the piston made of different materials, e.g. the shaft is made of ...
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JP4209193B2 |
Provided is a butterfly valve that prevents occurrence of erosion, thereby rendering it possible to secure fine adjustment of a volumetric flow rate of a fluid in an area of low degree of valve opening or in an area of minute degree of v...
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JP4187599B2 |
The object of the present invention is to provide a low pressure processing system having no possibility of leakage at a valve provided in an exhaust passage when the valve is closed, and capable of reducing a load of maintenance work. A...
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JP4176839B2 |
Valve cartridge (10) includes a housing (32) having inlet member (54), outlet member (52) and screw thread (34). Cavity (36) extends axially through housing (32) within which is a piston (38) which moves axially against piston seal (44) ...
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JP4151007B2 |
The valve has a valve body abutment plate (22) abutting an elastic valve body portion (12) from a fluid outlet side, and includes a pressing portion (23) for pressing an outer peripheral portion of the body portion. Back flow fluid press...
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JP4063236B2 |
To provide a valve having a higher hardness and higher impact resistance, and its production method, and a power generation plant and members for the valve using the same. The valve has a valve body and a valve box and one kind selected ...
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JP4058733B2 |
A pipe coupling 30 comprises a tubular body 31 for a pipe 32 to be inserted in through the rear end thereof, a front ring 33 and a back ring 34 to be fitted around the pipe 32 projecting from the rear end of the body 31, and a cap nut 35...
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JP4049084B2 |
Exemplary embodiments can provide a fluid control valve, which reduces or prevents any bubble from being built up in the valve itself so as to protect other hydraulic equipment placed in a downstream side from having any malfunction due ...
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JP4039561B2 |
A valve arrangement ( 10 ) for reducing the instability of fluid flow in a compressible flow governor valve includes a cutoff plug ( 12 ) with a lateral concave surface ( 14 ) and an end portion ( 16 ) having a substantially circular cro...
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JP4006218B2 |
A stop valve which is fitted with a cylindrical supporting portion is comprised of a ring-shaped rigid axial portion, a ring-shaped platy bendable valve portion extending outward, and a sealing lip portion extending inward. The sealing l...
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JP3995898B2 |
A back pressure control apparatus used in a fuel cell system, which can normally operate even when the system starts in a low-temperature environment. The valve has a simple structure realized at low cost. The valve comprises a pipe memb...
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JP3966986B2 |
To prevent sticking of a by-product in exhaust gas by improving assembly work efficiency, minimum flow controllability, and maximum flow controllability, so as to improve heating temperature distribution of a body and a valve element. A ...
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JP2007187296A |
To dispose a gas bearing mechanism between a spool and a sleeve by a more simple process, in a gas pressure control valve.This gas pressure control valve 10 comprises the spool 14 including three land portions 20, 22, 24, and a stem port...
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JP2007127238A |
To prevent the occurrence of adhesion abrasion between a valve element and a valve seat part.The flow rate control device 4 of an engine is provided with a by-pass passage 48 having the valve seat part 28 formed on passage walls 20, 30 b...
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JP3909334B2 |
To provide a valve device capable of reducing the burying of foreign matters into a valve body 22, and stably keeping a closing performance for a long term. The valve device is provided with a nozzle 28 and the rubber valve body 22 for o...
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JP3907784B2 |
To perfectly close a valve seat channel so as to guarantee leakage sealing property in spite of the rounding of the edge part of the channel by wear with time. A pressure regulator is the one for the first pressure degrease stage of a tw...
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JP2007092829A |
To elongate the service life of a valve by reducing wear of a ball part and seat part.This valve can achieve a close state to block a flow of fluid by pressing the ball part 12 against the seat part and an open state to allow the flow of...
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JP2007501364A |
The invention provides a microfluidic valve comprising a first body for containing fluid having a fluid inlet and a fluid outlet and a plurality of electrodes, and arranged to contain, in use, a second body held within fluid contained in...
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JP3848702B2 |
To enable both prevention of rapid taking-out of gas at the starting time in operation of a closing valve and attaining a desired shape of valve seat to be concurrently obtained. A closing member 12 inserted into a valve chamber 8 in a v...
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JP3846287B2 |
To provide a noiseless and durable valve which prevents leakage and return flow completely and moreover to obtain the valve whose defective tendency can be predicted before losing the function of a valve. In a valve which forms the valve...
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