CN104494836B - Small aircraft fuel tank draining valve switch - Google Patents
Small aircraft fuel tank draining valve switch Download PDFInfo
- Publication number
- CN104494836B CN104494836B CN201410726618.6A CN201410726618A CN104494836B CN 104494836 B CN104494836 B CN 104494836B CN 201410726618 A CN201410726618 A CN 201410726618A CN 104494836 B CN104494836 B CN 104494836B
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- CN
- China
- Prior art keywords
- base
- valve core
- thimble
- hole
- shaft shoulder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses a small aircraft fuel tank draining valve switch. The switch comprises a shell, a base which passes on the shell, a valve core which is arranged on the base and a pressure bolt with an axial through hole in the middle, wherein the valve core is cylindrical, the lower part of the valve core is a conical thimble, the thimble extends into the through hole, a shaft shoulder is arranged on the valve core, a sealing ring capable of preventing oil leakage is arranged between the shaft shoulder and the upper end surface of the pressure bolt; the valve core passes through the middle of the base, a first spring is sleeved on the outer part of the valve core, and the lower part of the first spring is arranged on the shaft shoulder. The thimble is arranged on the lower part of the valve core, the through hole is arranged in the middle of the pressure bolt, and the first sealing ring is added. In the prior art, the bolt should be unscrewed to drain fuel, and in the invention it is only necessary to use a tool to jack up the thimble, so that the fuel is drained through the bolt through hole, the thimble is loosed, and the draining valve is closed. The draining valve switch is safe and reliable, is good in reliability and convenient to operate, and the maintainability and safety of aircrafts are greatly improved.
Description
Technical field
The present invention relates to a kind of baby plane fuel tank Fuel Bleed Valve switch.
Background technology
Fuel tanker provides under various regimes fuel oil for aircraft engine, and the quality of aircraft fuel oil has to aircraft safety
There is significant impact, Fuel Bleed Valve switch is normally at the minimum point of fuel tank, and by Fuel Bleed Valve switch the inspection of fuel tank intermediate fuel oil is released
The quality of fuel oil is looked into, this requires the features such as Fuel Bleed Valve switch need to be good with flexible and convenient operation, maintainability, and sealing is strong.
Existing fuel tank Fuel Bleed Valve switch is installed on fuel tank lowest point, and its structure is more complicated, needs to carry out Oil drain operation
When, hold down gag need to be unscrewed and drained the oil, due to needing Jing often to operate herein, Long-Time Service can cause sealing effectiveness to be greatly reduced,
And operation is not convenient, needs Jing often to change sealing ring, is unfavorable for that maintenance is used.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of baby plane Fuel Bleed Valve switching device, to solve existing oil
Case Fuel Bleed Valve switching manipulation inconvenience, sealing effectiveness is poor, the not high problem of maintainability.
To solve above-mentioned technical problem, the technical solution used in the present invention is：A kind of baby plane fuel tank Fuel Bleed Valve
Switch, its key technology is：It includes housing, the base being arranged on housing, the valve core on base and connection
In the hold-down bolt of base bottom, the hold-down bolt middle part is provided with the axial through hole for draining the oil；
The valve core is column structure, and its underpart is taper thimble, and the tapered thimble is extended in the through hole, described
Valve core is provided with the shaft shoulder, and being provided between the shaft shoulder and the upper surface of hold-down bolt prevents the sealing ring of oil leak；
The base is hollow structure, and the valve core is arranged in the base middle part, is arranged with outside the valve core
First spring, the first spring bottom is located on the shaft shoulder, and top is limited on the base.
Preferably, the lower housing portion is located on base, and between the housing and base second spring is provided with.
It is further to improve, it is provided with gasket seal between the clamp nut and base lower surface.
It is using the beneficial effect produced by above-mentioned technical proposal：The valve core bottom of the present invention is provided with tapered top
It is through hole in the middle of pin, hold-down bolt, and increases by the first sealing ring, needing to looser a bolt before this and being drained the oil, the present invention only needs to make
Thimble is backed down with instrument, fuel oil just can be drained the oil by bolt hole, it is not necessary to unscrew hold-down bolt, unclamp thimble, work of draining the oil
Door is closed；
Using marquis of the present invention, Fuel Bleed Valve switch safety reliability, good airproof performance is easy to operate, and maintainability is strong, carries significantly
The high maintainable and security of aircraft.
Description of the drawings
Fig. 1 is the structural representation of the present invention（Half-section diagram）；
Fig. 2 is the schematic perspective view of the present invention；
Wherein, 1 spring, 2 valve cores, 3 first sealing rings, 4 second sealing rings, 5 housings, 6 bases, 7 hold-down bolts, 8
Gasket seal, 9 thimbles, 10 shaft shoulders, 11 through holes.
Specific embodiment
The present invention is further detailed below in conjunction with the accompanying drawings.
Referring to accompanying drawing 1 and accompanying drawing 2, the present embodiment includes located at outside housing 5, the base 6 being arranged on housing 5, sets
Valve core 2 and the hold-down bolt 7 of the bottom of base 6 is connected on base 6, the middle part of the hold-down bolt 7 is provided with axial use
In the through hole 11 drained the oil；
The valve core 2 is column structure, and its underpart is tapered thimble 9, and the tapered thimble 9 is put in the through hole 11,
The valve core 2 is provided with the shaft shoulder 10, and being provided between the upper surface of the shaft shoulder 10 and hold-down bolt 7 prevents the first of oil leak
Sealing ring 3；Gasket seal 8 is provided between the lower surface of the hold-down bolt 7 and base 6.
The base 6 is hollow structure, and located at the hole run through, the valve core 2 is arranged in the bottom to its middle part axial location
The middle part of seat 6, is arranged with spring 1 outside the valve core 2, and the bottom of the spring 1 is positioned on the shaft shoulder 10, the top of spring 1
It is positioned on the step on the top of the base 6, the step is formed by the shoulder hole at the middle part of base 6, and the top of the spring 1 is resisted against
On the step surface of formation.
The lower end surface of the housing 5 is located on base 6, and between the inner face and base 6 of the housing 5 second is provided with
Sealing ring 4.
When needing to check fuel qualities, upper top extend into the valve core 2 in hold-down bolt 7, fuel oil Jing housings 5, base 6
Inner chamber flows out from the through hole of hold-down bolt 7, and Fuel Bleed Valve is automatically switched off in the presence of spring 1 after release.
When needing to release fuel tank intermediate fuel oil, hold-down bolt 7 is turned on, take out valve core 2 and spring 1, special draining the oil is installed
Jointing releases fuel oil.
The present invention is checked in certain aircraft through actual installation, and good airproof performance is easy to operate, and maintainability is strong, solves before this
Fuel Bleed Valve switch seal is bad, unhandy problem.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using present invention wound
Make.Various modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case of the spirit or scope without departing from the invention.Cause
This, the invention is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (1)
1. a kind of baby plane fuel tank Fuel Bleed Valve is switched, it is characterised in that：It includes housing（5）, be arranged in housing（5）On
Base（6）, located at base（6）On valve core（2）And it is connected to base（6）The hold-down bolt of bottom（7）, the compression spiral shell
Bolt（7）Middle part is provided with the axial through hole for draining the oil（11）；
The valve core（2）For column structure, its underpart is tapered thimble（9）, the taper thimble（9）Extend to the through hole
（11）It is interior, the valve core（2）It is provided with the shaft shoulder（10）, in the shaft shoulder（10）With hold-down bolt（7）Upper surface between set
Having prevents the first sealing ring of oil leak（3）；
The base（6）For hollow structure, the valve core（2）It is arranged in the base（6）Middle part, in the valve core（2）Outward
Portion is arranged with spring（1）, the spring（1）Bottom is located at the shaft shoulder（10）On, top is limited in the base（6）On；
The housing（5）Bottom is located at base（6）On, in the housing（5）With base（6）Between be provided with the second sealing ring（4）；
The hold-down bolt（7）With base（6）Gasket seal is provided between lower surface（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410726618.6A CN104494836B (en) | 2014-12-04 | 2014-12-04 | Small aircraft fuel tank draining valve switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410726618.6A CN104494836B (en) | 2014-12-04 | 2014-12-04 | Small aircraft fuel tank draining valve switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104494836A CN104494836A (en) | 2015-04-08 |
| CN104494836B true CN104494836B (en) | 2017-05-10 |
Family
ID=52936322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410726618.6A Expired - Fee Related CN104494836B (en) | 2014-12-04 | 2014-12-04 | Small aircraft fuel tank draining valve switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104494836B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU197781U1 (en) * | 2019-12-26 | 2020-05-28 | Акционерное общество "Технодинамика" | Electrically actuated drain valve for emergency fuel system |
| RU197892U1 (en) * | 2019-12-26 | 2020-06-04 | Акционерное общество "Технодинамика" | Flameproof Drain Valve |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105109700B (en) * | 2015-08-12 | 2017-11-21 | 中国航空工业集团公司西安飞机设计研究所 | A kind of fuel dump house steward excess oil exhaust system and method for discharge |
| CN105416599B (en) * | 2015-12-13 | 2019-01-18 | 中国航空工业集团公司西安飞机设计研究所 | One kind is drained the oil self-styled valve arrangement |
| CN106838336A (en) * | 2016-12-15 | 2017-06-13 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft jettison gear of easy care |
| CN111824432A (en) * | 2019-04-18 | 2020-10-27 | 成都飞机工业（集团）有限责任公司 | Lightning protection type oil drainage structure of aircraft oil tank |
| CN111216906A (en) * | 2019-11-15 | 2020-06-02 | 陕西飞机工业（集团）有限公司 | Quick-release self-sealing type wing oil tank oil drainage device |
| CN110979703B (en) * | 2019-12-25 | 2021-06-08 | 中国航空工业集团公司沈阳飞机设计研究所 | Ground oil drainage device of aircraft fuel system |
| CN111058949B (en) * | 2020-01-06 | 2021-01-15 | 南京航空航天大学 | Pressure-controlled oil drainage valve for starting of turboshaft engine and use method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5433410A (en) * | 1994-05-27 | 1995-07-18 | Foltz; Timothy J. | Drain valve |
| US5478049A (en) * | 1995-03-20 | 1995-12-26 | Lescoe; Robert J. | Quick drain valve |
| FR2734883A1 (en) * | 1995-05-29 | 1996-12-06 | Marin Lamellet Pierre | Oil sump emptying plug for engines in motor vehicles |
| CN2541609Y (en) * | 2002-04-12 | 2003-03-26 | 杨文志 | Automobile engine oil drainer |
| KR20040081893A (en) * | 2003-03-17 | 2004-09-23 | 에스케이 주식회사 | Plug and socket for exchanging car oil |
| GB0526207D0 (en) * | 2005-12-22 | 2006-02-01 | Airbus Uk Ltd | Fuel tank valve |
| CN202493727U (en) * | 2012-03-23 | 2012-10-17 | 林菊芬 | Oil outlet valve |
| CN203035305U (en) * | 2012-12-20 | 2013-07-03 | 李祖培 | Oil drainage bolt |
-
2014
- 2014-12-04 CN CN201410726618.6A patent/CN104494836B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU197781U1 (en) * | 2019-12-26 | 2020-05-28 | Акционерное общество "Технодинамика" | Electrically actuated drain valve for emergency fuel system |
| RU197892U1 (en) * | 2019-12-26 | 2020-06-04 | Акционерное общество "Технодинамика" | Flameproof Drain Valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104494836A (en) | 2015-04-08 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20201204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |