CN105620773A - Two-way ventilation device for universal airplane wing fuel tank ventilation system - Google Patents
Two-way ventilation device for universal airplane wing fuel tank ventilation system Download PDFInfo
- Publication number
- CN105620773A CN105620773A CN201410587446.9A CN201410587446A CN105620773A CN 105620773 A CN105620773 A CN 105620773A CN 201410587446 A CN201410587446 A CN 201410587446A CN 105620773 A CN105620773 A CN 105620773A
- Authority
- CN
- China
- Prior art keywords
- fuel tank
- valve assembly
- breather
- ventilating device
- spring
- 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.)
- Granted
Links
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention belongs to the technical field of universal airplane wing fuel tank ventilation and relates to a two-way ventilation device for a universal airplane wing fuel tank ventilation system. The two-way ventilation device is of a pure mechanical structure and is mainly composed of a shell, a valve assembly, a spring and the like. The airplane climbing exhausting function and the function that a valve is opened to supplement air when negative pressure exists in a fuel tank in the descending process can be achieved. When an airplane rolls and flies at a large angle, the valve assembly is closed, and therefore the problem that a large amount of fuel of the fuel tank leaks through a ventilation pipe is solved.
Description
Technical field
The invention belongs to general class aircraft wing fuel tank ventilating technology field, relate to a kind of bidirectional ventilating device for the ventilation of general class aircraft wing fuel tank.
Background technology
The part that current domestic general class aircraft aerating system is connected with the external world directly connects with atmospheric environment mainly by vent line, owing to breather caliber is bigger, aircraft maneuver process there will be oil leakage phenomenon, and in order to solve Leakage, traditional aerating system generally requires arranges longer vent line, venting tube outlet is arranged in fuselage positions, which adds system weight, and can not thoroughly solve Leakage.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, the safe and reliable bidirectional ventilating device for wing tank ventilation.
The technical scheme is that described bidirectional ventilating device includes device case 1, valve assembly 2, spring 3, breather 4 and passage 5;
The housing 1 of bidirectional ventilating device is divided into two cavitys, and a cavity connects with fuel tank internal, and another cavity connects with the breather 4 being arranged on outside fuel tank to be placed in atmospheric environment, and the dividing plate 6 in two chambeies has through hole;
The cavity connected with fuel tank internal is provided with spring 3 and valve assembly 2, when tank pressure is more than or equal to atmospheric pressure, through hole on dividing plate 6 is sealed by valve assembly 2 under the effect of spring 3, when tank pressure is less than atmospheric pressure, atmospheric pressure can promote spring to open valve assembly 2.
Passage 5 is had on the cavity top connected with breather 4.
The diameter of passage 5 is 1��3mm.
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 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 tank pressure does not have excessive negative pressure and a malleation, and simple in construction, it is easy to install, the size of passage 5 can adjust simultaneously, also solves a large amount of Leakage of breather.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram;
Fig. 2 is valve assembly structural representation;
Wherein: device case 1; Valve assembly 2; Spring 3; Breather 4; Passage 5; Dividing plate 6; Baffle plate 7; Torsion spring 8.
Detailed description of the invention
Accompanying drawings the specific embodiment of the present invention. As shown in Figure 1, Figure 2, in apparatus of the present invention, device case 1 is linked together by screw thread and breather 4, and device case 1 has passage 5. Torsion spring 8 is enclosed within the valve bar of valve assembly 2, and valve assembly 2 is fixed on dividing plate 6 by valve bar. In its natural state, valve assembly 2 seals with device case 1 under the active force of torsion spring 3.
The diameter of the passage 5 on the device case 1 of apparatus of the present invention is 1��3mm. aircraft is in flight course, when tank pressure is more than or equal to atmospheric pressure, through hole every 6 is sealed by valve assembly 2 under the active force of torsion spring 8, and by passage 5 outwardly atmospheric environment aerofluxus, reduce tank pressure, when tank pressure is less than atmospheric pressure, atmospheric pressure can promote torsion spring to open valve assembly 2, thus rapidly by atmospheric environment to make-up gas in fuel tank, negative pressure damages fuel tank to avoid fuel tank to occur, the through-hole diameter of its median septum 6 is not less than the caliber of breather 4, mainly consider that fuel tank can not bear negative pressure, fuel tank needs rapid make-up gas when there is negative pressure.
The passage 5 of device case 1 is only small, and aircraft is when doing roll attitude this device of flooded with fuel without a large amount of leakage of oils, and traditional direct breather of comparing is connected with ambient atmosphere, solves a large amount of Leakage, improves the safety of aircraft.
Claims (5)
1., for a bidirectional ventilating device for general class aircraft wing fuel tank vent system, it is characterized by: described bidirectional ventilating device includes device case (1), valve assembly (2), spring (3), breather (4) and passage (5);
The housing (1) of bidirectional ventilating device is divided into two cavitys, one cavity connects with fuel tank internal, another cavity connects with the breather (4) being arranged on outside fuel tank to be placed in atmospheric environment, and the dividing plate (6) in two chambeies has through hole;
The cavity connected with fuel tank internal is provided with spring (3) and valve assembly (2), when tank pressure is more than or equal to atmospheric pressure, through hole on dividing plate (6) is sealed by valve assembly (2) under the effect of spring (3), when tank pressure is less than atmospheric pressure, atmospheric pressure can promote spring to open valve assembly (2).
Passage (5) is had on the cavity top connected with breather (4).
2. a kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system according to claim 1, is characterized by: the diameter of passage (5) is 1��3mm.
3. a kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system according to claim 1 and 2, it is characterized by: valve assembly (2) is baffle plate (7), baffle plate (7) is hinged on dividing plate (6), and is provided with torsion spring (8).
4. a kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system according to claim 1 and 2, is characterized by: the through-hole diameter on dividing plate (6) is not less than the caliber of breather (4).
5. a kind of bidirectional ventilating device for general class aircraft wing fuel tank vent system according to claim 3, is characterized by: the through-hole diameter on dividing plate (6) is not less than the caliber of breather (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 true CN105620773A (en) | 2016-06-01 |
| CN105620773B 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 |
|---|---|
| CN (1) | CN105620773B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910060A (en) * | 2018-07-14 | 2018-11-30 | 刘占波 | A kind of fixed-wing unmanned plane bradyseism Anti-bubble fuel feeding auxiliary fuel tank system |
| CN111017234A (en) * | 2019-12-24 | 2020-04-17 | 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 |
| CN113232873A (en) * | 2021-05-19 | 2021-08-10 | 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 (5)
| 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 |
| US20120025026A1 (en) * | 2010-07-29 | 2012-02-02 | Airbus Operations Limited | Venting gas from a 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 |
-
2014
- 2014-10-28 CN CN201410587446.9A patent/CN105620773B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120025026A1 (en) * | 2010-07-29 | 2012-02-02 | Airbus Operations Limited | Venting gas from a tank |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910060A (en) * | 2018-07-14 | 2018-11-30 | 刘占波 | A kind of fixed-wing unmanned plane bradyseism Anti-bubble fuel feeding auxiliary fuel tank system |
| CN111017234A (en) * | 2019-12-24 | 2020-04-17 | 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 |
| 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 |
| CN113232873A (en) * | 2021-05-19 | 2021-08-10 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105620773B (en) | 2018-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105620773A (en) | Two-way ventilation device for universal airplane wing fuel tank ventilation system | |
| CN205173589U (en) | Diaphragm check valve | |
| CN102673794A (en) | Overhead fuel drainage device using fuel supply pumps as power | |
| CN202769162U (en) | An expansion tank | |
| CN104986325B (en) | A kind of radome fairing ventilation pressure relief | |
| CN204180141U (en) | With the mobile phone of silicon rubber suction cup | |
| CN105599908A (en) | Universal ventilation system for aircraft wing oil tanks | |
| CN106553746A (en) | Aerostatics and its utricule structure | |
| CN203130734U (en) | Exhausting bolt for boiler | |
| CN204250377U (en) | A kind of supercharging self-packer | |
| CN104183367B (en) | A kind of plain type transformer breather | |
| CN203240037U (en) | Air flow balance valve | |
| CN203783680U (en) | Biaxial rotating type oil absorption ventilation device for aerobatics | |
| CN209309332U (en) | A kind of vacuum tank Manual air-release valves | |
| CN205534451U (en) | Drive gas release device | |
| CN204037915U (en) | A kind of unmanned plane | |
| CN202860374U (en) | Air drying device for onboard electronic pod | |
| CN204342693U (en) | The explosive loading machine of on-site mixed emulsion explosive | |
| CN206076309U (en) | A kind of high safety constant temperature ternary battery bag | |
| CN221068458U (en) | Airborne hydrogen gas discharge system | |
| CN201825744U (en) | Closed breather device | |
| CN204677301U (en) | The turboaxle motor that a kind of solenoid valve is built-in | |
| CN202790741U (en) | Oil tank constant pressure pressure-reducing valve | |
| CN204253974U (en) | A kind of gas cylinder valve for storing edible gas | |
| CN220263081U (en) | Sealed cabin body with waterproof function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |