CN105620773B - A kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system - Google Patents
A kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system Download PDFInfo
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- CN105620773B CN105620773B CN201410587446.9A CN201410587446A CN105620773B CN 105620773 B CN105620773 B CN 105620773B CN 201410587446 A CN201410587446 A CN 201410587446A CN 105620773 B CN105620773 B CN 105620773B
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- China
- Prior art keywords
- fuel tank
- general class
- aircraft wing
- ventilating device
- valve assembly
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Abstract
The invention belongs to general class aircraft wing fuel tank ventilating technology field, is related to a kind of bidirectional ventilating device for the ventilation of general class aircraft wing fuel tank.Apparatus of the present invention are a kind of pure mechanic structures, are mainly made up of housing, valve assembly and spring etc., can realize exhaust of mushing, and fuel tank negative pressure valve occurs and opens gas compensation function during decline.And aircraft, when doing wide-angle rolling flight, valve assembly is to close, and passes through a large amount of Leakages of breather pipe so as to solve oil tank fuel.
Description
Technical field
The invention belongs to general class aircraft wing fuel tank ventilating technology field, is related to a kind of for general class aircraft wing oil
The bidirectional ventilating device of case ventilation.
Background technology
The part that current domestic general class aircraft aerating system is connected with the external world is mainly by vent line and big compression ring
Border directly connects, and because breather pipe caliber is larger, oil leakage phenomenon occurs during aircraft maneuver, and in order to solve leak
Oily problem, traditional aerating system generally require to arrange longer vent line, and venting tube outlet is arranged in fuselage positions, so
System weight is increased, and can not thoroughly solve Leakage.
The content of the invention
It is an object of the invention to provide a kind of two-way ventilation dress for being used for wing tank ventilation simple in construction, safe and reliable
Put.
The technical scheme is that：Described bidirectional ventilating device includes device case 1, valve assembly 2, spring 3, logical
Tracheae 4 and passage 5；
The housing 1 of bidirectional ventilating device is divided to be connected for two cavitys, a cavity with fuel tank internal, another cavity and peace
The breather pipe 4 being placed in outside fuel tank in atmospheric environment is connected, and through hole is provided with the dividing plate 6 of two chambers；
Spring 3 and valve assembly 2 are installed, when tank pressure is more than or equal to greatly on the cavity connected with fuel tank internal
During atmospheric pressure, valve assembly 2 seals the through hole on dividing plate 6 in the presence of spring 3, when tank pressure is less than atmospheric pressure
During power, atmospheric pressure can push the spring opening valve assembly 2.
Passage 5 is provided with the cavity top connected with breather pipe 4.
A diameter of 1~3mm of passage 5.
Valve assembly 2 is baffle plate 7, and baffle plate 7 is hinged on dividing plate 6, and is provided with torsion spring 8.
Through-hole diameter on dividing plate 6 is not less than the caliber of breather pipe 4.
The present invention has the advantage that effect：Apparatus of the present invention not only solve the normal ventilation of fuel tank, ensure that fuel tank pressure
Power is not in excessive negative pressure and malleation, and simple in construction, is easily installed, while the size of passage 5 can adjust,
Solve a large amount of Leakages of breather pipe.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is valve assembly structural representation；
Wherein：Device case 1；Valve assembly 2；Spring 3；Breather pipe 4；Passage 5；Dividing plate 6；Baffle plate 7；Torsion spring 8.
Embodiment
The embodiment of the present invention is described with reference to the drawings.As shown in Figure 1, Figure 2, device case 1 passes through in apparatus of the present invention
Screw thread is linked together with breather pipe 4, and passage 5 is provided with device case 1.Baffle plate 7 is hinged on dividing plate 6, and in hinged place
Torsion spring 8 is installed.In its natural state, baffle plate 7 seals under the active force of torsion spring 8 with device case 1.
A diameter of 1~3mm of passage 5 on the device case 1 of apparatus of the present invention.Aircraft is in flight course, fuel tank
When interior pressure is more than or equal to atmospheric pressure, baffle plate 7 seals the through hole of dividing plate 6 under the active force of torsion spring 8, and by logical
Outwardly atmospheric environment is vented stomata 5, reduces tank pressure, when tank pressure is less than atmospheric pressure, atmospheric pressure can push away
Dynamic torsion spring opens baffle plate 7, so as to rapidly by atmospheric environment into fuel tank make-up gas, avoid fuel tank from negative pressure damage oil occur
Case, the through-hole diameter of its median septum 6 are not less than the caliber of breather pipe 4, mainly consider that fuel tank can not bear negative pressure, fuel tank occurs
Rapid make-up gas is needed during negative pressure.
The very little of passage 5 of device case 1, aircraft also will not largely leak when doing the roll attitude flooded with fuel present apparatus
Oil, it is connected compared to more traditional direct breather pipe with ambient atmosphere, solves a large amount of Leakages, improve the safety of aircraft
Property.
Claims (5)
1. a kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system, it is characterized in that：Described two-way
Device of air includes device case (1), valve assembly (2), spring (3), breather pipe (4) and passage (5)；
The housing (1) of bidirectional ventilating device is divided into two cavitys, and a cavity connects with fuel tank internal, another cavity and installation
The breather pipe (4) being placed in outside fuel tank in atmospheric environment is connected, and through hole is provided with the dividing plate (6) of two chambers；
Spring (3) and valve assembly (2) are installed, when tank pressure is more than or equal to greatly on the cavity connected with fuel tank internal
During atmospheric pressure, valve assembly (2) seals the through hole on dividing plate (6) in the presence of spring (3), when tank pressure is less than greatly
During atmospheric pressure, atmospheric pressure can push the spring opening valve assembly (2)；
Passage (5) is provided with the cavity top connected with breather pipe (4).
2. a kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system according to claim 1, its
It is characterized as：A diameter of 1~3mm of passage (5).
3. a kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system according to claim 1 or 2,
It is characterized in that：Valve assembly (2) is baffle plate (7), and baffle plate (7) is hinged on dividing plate (6), and spring (3) is torsion spring (8).
4. a kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system according to claim 1 or 2,
It is characterized in that：Through-hole diameter on dividing plate (6) is not less than the caliber of breather pipe (4).
5. a kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system according to claim 3, its
It is characterized as：Through-hole diameter on dividing plate (6) is not less than the caliber of breather pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410587446.9A CN105620773B (en) | 2014-10-28 | 2014-10-28 | A kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410587446.9A CN105620773B (en) | 2014-10-28 | 2014-10-28 | A kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105620773A CN105620773A (en) | 2016-06-01 |
| CN105620773B true CN105620773B (en) | 2018-04-03 |
Family
ID=56036200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410587446.9A Active CN105620773B (en) | 2014-10-28 | 2014-10-28 | A kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system |
Country Status (1)
| Country | Link |
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| CN (1) | CN105620773B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910060B (en) * | 2018-07-14 | 2019-04-09 | 刘占波 | A kind of fixed-wing unmanned plane bradyseism Anti-bubble fuel feeding auxiliary fuel tank system |
| CN111017234B (en) * | 2019-12-24 | 2023-08-04 | 中国航空工业集团公司西安飞机设计研究所 | One-way valve device for ventilation pipeline of aircraft fuel system |
| CN113232873B (en) * | 2021-05-19 | 2023-03-24 | 中航西安飞机工业集团股份有限公司 | Automatic switch system for blockage of air port of aircraft fuel tank |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201841943U (en) * | 2010-09-26 | 2011-05-25 | 洪志敏 | Oil-gas separator arranged outside oil tank |
| CN202727973U (en) * | 2012-07-23 | 2013-02-13 | 东莞正扬电子机械有限公司 | Pressure regulating device for automobile fuel tank |
| CN202790741U (en) * | 2012-08-14 | 2013-03-13 | 张福龙 | Oil tank constant pressure pressure-reducing valve |
| CN203627954U (en) * | 2013-11-01 | 2014-06-04 | 成都飞机工业（集团）有限责任公司 | Mechanical ventilation valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201012723D0 (en) * | 2010-07-29 | 2010-09-15 | Airbus Operations Ltd | Improvements relating to venting gas from a tank |
-
2014
- 2014-10-28 CN CN201410587446.9A patent/CN105620773B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201841943U (en) * | 2010-09-26 | 2011-05-25 | 洪志敏 | Oil-gas separator arranged outside oil tank |
| CN202727973U (en) * | 2012-07-23 | 2013-02-13 | 东莞正扬电子机械有限公司 | Pressure regulating device for automobile fuel tank |
| CN202790741U (en) * | 2012-08-14 | 2013-03-13 | 张福龙 | Oil tank constant pressure pressure-reducing valve |
| CN203627954U (en) * | 2013-11-01 | 2014-06-04 | 成都飞机工业（集团）有限责任公司 | Mechanical ventilation valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105620773A (en) | 2016-06-01 |
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