CN101059172A - Fuel system control valve - Google Patents
Fuel system control valve Download PDFInfo
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- CN101059172A CN101059172A CN 200710011487 CN200710011487A CN101059172A CN 101059172 A CN101059172 A CN 101059172A CN 200710011487 CN200710011487 CN 200710011487 CN 200710011487 A CN200710011487 A CN 200710011487A CN 101059172 A CN101059172 A CN 101059172A
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- valve
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- bar
- return
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Abstract
A fuel system control valve applies to machinery industry pipeline system. The entire device consists of valve body, valve seat, valve bar, valve cover, valve bar nut, the first gear, the second gear and rotary axle, the valve body is equipped with the valve seat, valve flap and valve rod, the valve cover is installed on the valve body and fastened, the valve bar nut and the first gear are installed on the valve bar, the rotary axle is installed on the side surface of valve cover, the first gear and the second gear are engaged and installed on the rotary axle; the process of control valve non-return is: when the valve bar lifting gate is on the open state and the output pressure of gate is bigger than the input pressure, the valve flap is divided with the valve bar, under the function of pressure, the non-return action is realized by the sealing of valve flap and the valve seat. The device has advanced design and reasonable structure, it meets the application requirements and reduces the transmission torque greatly through the drive axle driven gear rotation, so the open and close of valve gate is labor-saving, convenient and flexible, use life is long, sealing effect is good, the invention is a control valve with shut-off and non-return performance and can ensure fuel system safe operation.
Description
Technical field: the present invention relates to mechanical industry pipe-line system intermediate fuel oil system control valve.
Background technique: at present, stop valve is a kind of closed circuit valve that switches on or off pipeline fully, because the stop valve application is very extensive, especially is suitable for the less occasion of bore, and therefore, China's pipe-line system is a large amount of to be used by the class valve.Stop valve of the prior art is that handwheel, valve rod, valve body, valve gap, flap are that main parts size such as closure member and filler device are formed by actuator generally, handwheel links to each other with valve rod, and pass to flap by valve rod, make flap along the to-and-fro motion of valve seat axial direction, thereby pipeline is switched on or off.Because actuator is a handwheel, when nominal pressure is big, unlatching and the required moment of throttle down increase thereupon, not only increased operator's labor intensity, simultaneously if valve closing is not tight, cause dielectric leakage, will influence the proper functioning of system like this, serious threat is caused the generation of serious accident in case meet accident.Common stop valve sealing pair adopts cone structure more, and this kind structure all has high requirements to valve machining accuracy and medium degree of purity, in case occur that small off-centre, medium are impure will to cause valve leak.Therefore develop a kind of fuel system control valve is new problem anxious to be solved always.
Summary of the invention: the purpose of this invention is to provide a kind of advanced design, rational in infrastructure, satisfy usage requirement, by transmission shaft driven gear rotation reduced carry-over moment greatly, made that valve switch is laborsaving, convenient, flexible, working life is long, good sealing effect, a kind of fuel system control valve that has by the control valve of, non-return performance that can guarantee right oil system safe operation.
The object of the present invention is achieved like this: whole device is made up of valve body, valve seat, flap, valve rod, valve gap, Stem Mut, first gear, second gear, rotatingshaft, at valve body valve seat, flap, valve rod are installed, be contained in valve gap on the valve body and tighten up, Stem Mut, first gear are contained on the valve rod, rotatingshaft is installed in the side of valve gap, second gear and first gear engagement are installed on the rotatingshaft; The process of control valve non-return is when the valve rod poppet is in opening state, when the outlet pressure of valve greater than inlet pressure, flap separates with valve rod, under the effect of pressure, flap and valve base sealing reach the effect of non-return.
Main points of the present invention are the structural type and the design principle of its product.Its design principle is: 1. working principle: fuel system control valve is when work, drive the rotation of second gear by transmission shaft, give valve rod by second gear and the first gear meshing transmitting torque again, it is rotated promote, this moment, flap was opened by the pressure medium effect, had finished the process of opening.Otherwise, when rotating, valve rod moves down, can hold out against flap, and flap and valve base sealing play the effect that ends to medium.The process of control valve non-return is when the valve rod poppet is in opening state, when the outlet pressure of valve greater than inlet pressure, flap separates with valve rod, under the effect of pressure, flap and valve base sealing reach the effect of non-return.
Fuel system control valve compared with prior art, have advanced design, rational in infrastructure, satisfy usage requirement, by transmission shaft driven gear rotation reduced carry-over moment greatly, made that valve switch is laborsaving, convenient, flexible, working life is long, good sealing effect, a kind of advantages such as control valve that have by, non-return performance that can guarantee right oil system safe operation, will be widely used in the mechanical industry pipe-line system.
Description of drawings: concrete structure of the present invention is provided by following example and accompanying drawing thereof.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Embodiment: with reference to accompanying drawing, whole device is made up of valve body 1, valve seat 2, flap 3, valve rod 4, valve gap 5, Stem Mut 6, first gear 7, second gear 8, rotatingshaft 9, at valve body 1 valve seat 2, flap 3, valve rod 4 are installed, be contained in valve gap 5 on the valve body 1 and tighten up, Stem Mut 6, first gear 7 are contained on the valve rod 4, rotatingshaft 9 is installed in the side of valve gap 5, second gear 8 and 7 engagements of first gear are installed on the rotatingshaft 9.The process of control valve non-return is when valve rod 4 poppets are in opening state, when the outlet pressure of valve greater than inlet pressure, flap 3 separates with valve rod 4, under the effect of pressure, flap 3 and valve seat 2 sealings reach the effect of non-return.
Claims (2)
1, a kind of fuel system control valve, whole device is made up of valve body, valve seat, flap, valve rod, valve gap, Stem Mut, first gear, second gear, rotatingshaft, it is characterized in that: valve seat, flap, valve rod are installed at valve body, be contained in valve gap on the valve body and tighten up, Stem Mut, first gear are contained on the valve rod, rotatingshaft is installed in the side of valve gap, second gear and first gear engagement are installed on the rotatingshaft.
2, fuel system control valve according to claim 1, it is characterized in that: the process of control valve non-return is when the valve rod poppet is in opening state, when the outlet pressure of valve greater than inlet pressure, flap separates with valve rod, under the effect of pressure, flap and valve base sealing reach the effect of non-return.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710011487 CN101059172A (en) | 2007-05-29 | 2007-05-29 | Fuel system control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710011487 CN101059172A (en) | 2007-05-29 | 2007-05-29 | Fuel system control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101059172A true CN101059172A (en) | 2007-10-24 |
Family
ID=38865422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710011487 Pending CN101059172A (en) | 2007-05-29 | 2007-05-29 | Fuel system control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101059172A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864440A (en) * | 2016-05-30 | 2016-08-17 | 合肥通用机械研究院 | Flexible sealing lift valve |
| CN113321350A (en) * | 2021-07-16 | 2021-08-31 | 江苏天地化纤有限公司 | Chemical fiber production sewage comprehensive treatment device |
-
2007
- 2007-05-29 CN CN 200710011487 patent/CN101059172A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864440A (en) * | 2016-05-30 | 2016-08-17 | 合肥通用机械研究院 | Flexible sealing lift valve |
| CN113321350A (en) * | 2021-07-16 | 2021-08-31 | 江苏天地化纤有限公司 | Chemical fiber production sewage comprehensive treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |