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JP3143087 |
To keep stable gas sealing and electric insulation for a long time by providing a joint ring projecting to an alumina ring side on a flange surface and jointing the alumina ring and a joint ring by brazing. Ni plating 14 and Mo-Mn metall...
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JP3132805 |
To provide a discharge valve for a container which facilitates the discharge of its contents such as fluid, makes it hard for residue to remain, and can be cleaned easily and surely. This discharge valve comprises a valve main body 2 hav...
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JP3125831 |
PURPOSE: To provide a highly air-tight metal seat damper capable of obtaining desired sealing performance at a low cost without requiring accurate machining of a seat face in particular. CONSTITUTION: A flange-like valve seat 12 is forme...
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JP2000273573 |
To suppress the corrosion of eutectic carbides of a Co base alloy (so with Ni base and Fe base alloys) used for the sliding part of an apparatus and a valve seat which have been the cause of increasing the amt. of radiation in a nuclear ...
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JP3111314 |
To very accurately stipulate a desired throttle action by providing a by-pass passage having a throttle resistance which can be corrected in parallel with a duct. A by-pass passage 33 formed as an axial passage is passed through a holdin...
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JP2000240820 |
To reduce valve height for compactness and improve the sealing performance. A valve element seat 23 consists of upper valve element seats 23a formed on the verges of upstream and downstream faces of an upper portion of a valve element, a...
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JP2000240821 |
To provide a seat ring fitting structure for a gate valve, which can greatly extend a seat ring service life by permitting a rework/reuse of a worn seat ring and offer a fitting practice superior in a working efficiency and a sealing per...
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JP2000240818 |
To prevent rubbing of a valve element and a valve seat member against each other by slidably supporting the valve seat member in the axial direction of an operating shaft with respect to a casing, energizing the valve seat member toward ...
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JP2000240834 |
To provide a valve structure having further reliability and low cost. A valve element ad a valve seat are provided. One abutting surface (a first abutting surface) is a rubber molded part 34, and the other abutting surface (a second abut...
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JP2000226050 |
To deliver a fluid matter while maintaining asepsis and perfectness therefor by a method wherein at least two valve seats and elastomer sealing bodies are provided, and flow is blocked with the sealing bodies fitted firm respectively to ...
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JP2000218392 |
To provide a corrosion resistant cobalt group welding material which can be used in a corrosive fluid without causing grain boundary corrosion. This corrosion resistant cobalt group welding material is chemically composed of, 0.20-0.50 w...
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JP2000220757 |
To decrease the number of closing valves by providing a shut down function equal or similar with/to a leakage compensating function of a conventional closing valve for electric control valves. This electric control valve is so constitute...
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JP2000179727 |
To improve a sliding characteristic, include no material making radioactivity, and reduce costs.In an abrasion resistant valve element with a film and a valve seat, a CrN film whose surface is formed as a sliding surface is formed on a b...
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JP2000161502 |
To provide a constant flow rate valve with a low cost which can install it the place with a small fluid pressure.When a water pressure becomes high, a second flow route 14 and third route 15 are crushed by the elastic deformation and cru...
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JP2000145417 |
To decrease throttle loss while maintaining the performance of an engine as it is, by fitting the edge of a valve head of a poppet valve into the inner peripheral surface of a protrusion of a ring-shaped valve seat ring which is formed w...
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JP2000104844 |
To provide an automatic control valve provided with a means capable of improving control performance of the automatic control valve by suppressing wear due to sliding of an inside surface of a cage and a plug or a valve element, suppress...
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JP3043507 |
PURPOSE: To provide a laminated sheet of a polyester film having peel strength sufficient from a practical aspect and a nonwoven fabric by putting the voids of the nonwoven fabric to practical use to the utmost limit without damaging the...
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JP3035537 |
To lower an electric resistance and to minimize resistance loss by bringing an ion-exchange membrane into full contact with an electrode plate in a generator for generating a gas by electrolyzing water by the use of the membrane because ...
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JP2000028010 |
To improve the sealability by providing a bead comprising a rubber- like elastic member to be attached/detached to/from a valve seat on a seal part of a valve element, and integrating a seal lip higher than the bead with a transfer fluid...
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JP2000002350 |
To provide a check valve which can operate at a high speed and with high frequency and which has a high durability. This check valve is composed of a valve seat 11, ball 12, stopper 13, and a coupling member 14 to combine the seat 11 and...
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JP11336920 |
To provide the valve plate structure of a passage selector valve which can select smoothly while keeping a sufficient air-tightness and liquid-tightness, even when a foreign article is mixed in a working fluid and infiltrated into a slid...
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JP11325290 |
To improve abrasion resistance and airtightness of a valve device without containing cobalt by performing CrN ceramic coating on a base material of a valve element for, a sliding portion of the valve element from among sliding portions i...
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JP11325261 |
To ensure detection of the inflated and shrunk condition of an inflated sheet and of the position of the inflated sheet with a mechanical means. An inflated sheet 6 formed of elastic material, inflated or shrunk ranging between an inflat...
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JP11286701 |
To improve the erosion resistance of a valve seat surface as well as the wear resistance. A stellite No.6 powder is mixed and crushed by mechanical alloying (MA), and electric discharge plasma sintering (SPS) is performed by using an ele...
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JP11270701 |
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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JP11255929 |
To obtain a surface treating agent capable of ensuring sufficient adhesion to a coating film and to provide a method for coating using the surface treating agent. This method for coating includes a step for applying a surface treating ag...
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JP11211285 |
To provide a highly reliable open/close valve and a refrigerator using this open/close valve by enhancing the durability of a valve element of the open/close valve used in a refrigerating circuit of a refrigerator. An open/close valve 10...
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JP2959252 |
PURPOSE: To eliminate risk of a secondary fluid contacting a spring and enhance the corrosion resistance, etc., by setting off a projection on a piston from an orifice when the primary pressure rises to cause piston movement against the ...
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JP2945851 |
PURPOSE: To eliminate the unnecessary biting quantity caused by the thermal expansion of an elastic sheet ring at a time of high temperature by making a metal strip abut on the external periphery of the elastic sheet ring and providing a...
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JP11159638 |
To prevent so-called seal surface leakage and back surface leakage, and easily perform opening/closing operation. In a ball valve arranging a ball-shaped valve element 2 able to rotate in a valve chest of a valve body to respectively fit...
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JP11159637 |
To surely maintain a seal property. In a ball valve respectively fitting a seat ring 4 into a pair of annular grooves 3 formed between a valve chest in a valve body and both end circulation holes to bring the seat ring 4 into contact wit...
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JP11153172 |
To improve abrasion resistance, and eliminate generation of abnormal negative pressure and noise while maintaining a moderate contact condition on a contact surface by embedding hard particle on a surface of a valve element of a check va...
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JP11148562 |
To provide a butterfly valve which can decrease consumption of a purge gas, prevent intrusion of foreign matter into a bearing device to a satisfactory degree, and can prolong the lifetime of the sliding part in bearing device. A bearing...
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JP11141697 |
To structure a spool without a seal lip for sealing the bottom of a packing mounting groove and prevent the packing from levitating. A packing 12 to be fitted in a packing mounting groove provided in a spool body is furnished with a levi...
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JP11121021 |
To keep stable gas sealing and electric insulation for a long time by providing a joint ring projecting to an alumina ring side on a flange surface and jointing the alumina ring and a joint ring by brazing. Ni plating 14 and Mo-Mn metall...
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JP11118052 |
To provide a flow control valve having reduced vibration and noise and high durability by providing flexibility to a plug and easily bringing the tip of the plug into contact with a valve hole. In a flow control valve provided with a plu...
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JP11117035 |
To provide a sliding member manufactured by using sintered aluminum alloys capable of decreasing a seizure phenomenon, adhesive friction, etc. An outer rotor 5a and an inner rotor 5b are formed of sintered aluminum alloys, respectively. ...
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JP11101366 |
To order to assist rotation in switching operation of a valve, even by jetting high pressure fluid toward the periphery of a valve element from a high pressure fluid jetting slit groove, dust and foreign matter mixed in high pressure flu...
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JP11094112 |
To stably isolate gas when pressure of the gas varies, by preventing an annular rib from permanently deforming when pressure of the gas is very high in the isolation state. The isolation valve consists of a main valve and a sub valve, an...
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JP11082800 |
To improve corrosion resistance and reliability by applying surface treatment to a core member. A core member 20 is inserted into a casing main body 16 of a solenoid valve 14, and in the core member 20, a chlorine resistant nickel plated...
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JP11063269 |
To prevent contact pressure per unit area from decreasing as a result of a contact area increasing due to the elliptical deformation of an O-ring if tightening force is increased at the time of tightening a seal. An O-ring for composite ...
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JP11063251 |
To provide a valve that has stronger resistance to seize-up and improved workability at the sliding portion of its valve seat or the like for its adaptation especially to a nuclear power plant as a sluice valve. The sliding surface of at...
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JP11062833 |
To make an endurance period eight times by making the proper difference of hardness between a valve main body and a valve seat and the proper facing surface state so as to prevent the erosion phenomenon, and by making the proper surface ...
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JP11051513 |
To eliminate the occurrence of problems with the strength of a multipolar magnet, or the stability of size and the sliding of a valve body, by constituting the multipolar magnet of the plastic magnet in which magnetic powders is kneaded,...
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JP11037329 |
To inhibit the generation of particles every opening and closing operation of a valve. In a diaphragm valve where a diaphragm 6 is pressed to a valve seat face of a valve casing 1 for cutting off the liquid flowing inside the valve casin...
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JP11037330 |
To prevent large thermal stress from applying on a valve seat and a valve box by supporting the valve seat movably in the radial direction inside the valve box, providing a thermal movement part for absorbing thermal displacement in the ...
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JP11037328 |
To prevent intrusion of liquid into an insulating material and to improve a valve function by arranging the insulating material between a valve seat and an upstream inner wall part forming an upstream passage and arranging an upstream be...
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JP11030353 |
To provide a valve capable of certainly sealing a valve body and a valve seat without requiring great force at the time of sealing the valve body and the valve seat by using reaction force and inside pressure in simple structure and exce...
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JP11022851 |
To prevent the opening and closing movements of a valve from becoming unstable below freezing point. In a valve sealing structure in which a valve element part 4 has a sealing member 42 made of an elastic body, which seals the seating su...
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JP11013933 |
To obtain an escape valve capable of normal functions by preventing the slidably shifted surface of a piston from seizure in reciprocating the piston. A valve used for high-temperature gas and using a link mechanism is provided with a ca...
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