CN103569370A - Electromechanical ventilating valve capable of controlling gas pressure inside closed cavity - Google Patents
Electromechanical ventilating valve capable of controlling gas pressure inside closed cavity Download PDFInfo
- Publication number
- CN103569370A CN103569370A CN201310530909.3A CN201310530909A CN103569370A CN 103569370 A CN103569370 A CN 103569370A CN 201310530909 A CN201310530909 A CN 201310530909A CN 103569370 A CN103569370 A CN 103569370A
- Authority
- CN
- China
- Prior art keywords
- fuel tank
- valve
- gaseous tension
- electromechanical
- electric actuator
- 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.)
- Pending
Links
- 239000002828 fuel tank Substances 0.000 claims abstract description 56
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 6
- 240000006909 Tilia x europaea Species 0.000 claims description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 6
- 239000004571 lime Substances 0.000 claims description 6
- 239000000295 fuel oil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses an electromechanical ventilating valve capable of controlling gas pressure inside a closed cavity. The electromechanical ventilating valve comprises an electric actuator (3), a valve (1), a controller (4) and a differential pressure sensor (8), wherein the electric actuator (3) is provided with a rotating shaft; the rotating shaft of the electric actuator (3) is sleeved with the valve (1), and the valve (1) is used for connecting or disconnecting a fuel tank and the outside atmosphere; the controller (4) is used for controlling rotation of the rotating shaft of the electric actuator (3); the differential pressure sensor (8) is used for transmitting collected differential pressure values of the gas pressure of the fuel tank and the pressure of the outside atmosphere to the controller (4); and two end values, which are compared with the received differential pressure values of the gas pressure of the fuel tank and the pressure of the outside atmosphere, of the upper limit and the lower limit of an aircraft fuel tank gas pressure limit range are preset in the controller (4). The electromechanical ventilating valve can substitute for two original mechanical ventilating valves and can adjust any gas pressure ranges.
Description
Technical field
The present invention relates to a kind of electromechanical ventilating valve of controlling gaseous tension in closed cavity, relate in particular to a kind of electromechanical ventilating valve of controlling aircraft fuel oil loading pressure scope.
Background technology
Closed cavity as aircraft fuel tank be the enclosure space that stores fuel oil, being filled by gas without oily space of fuel tank, gaseous tension there will be following variable condition: along with fuel oil temperature rises, fuel oil expands, fuel tank rises fuel tank gaseous tension without oily spatial volume compression, when fuel tank gaseous tension surpasses environment atmospheric pressure, fuel oil tank wall bears positive pressure, along with the consumption of fuel oil, fuel tank increases without oily spatial volume, and fuel tank gas expansion declines gaseous tension, occurs negative pressure when fuel tank gaseous tension is less than environment atmospheric pressure, simultaneously environment atmospheric pressure also can be with aircraft in different air environments as ground and aerial differing heights and difference, when positive pressure or negative pressure surpass the structural strength of oil tank wall or the strength of material limit, fuel tank can produce distortion or destroy, therefore control aircraft fuel tank gaseous tension with respect to the pressure reduction of environment atmospheric pressure all the time in certain limit, very important to the safety of fuel tank, past adopts two mechanical type ventilating valves on aircraft fuel tank, valve adopts spring to control, when fuel tank surpasses default spring force without the malleation of oily space gas or negative pressure, valve is opened fuel tank and ambient atmosphere is communicated with, unidirectionally realize fuel tank exhaust or bleed.Thisly with mechanical type ventilating valve, control fuel tank gaseous tension mode and have following deficiency: first need to adopt two spring loaded ventilating valves to realize fuel tank gaseous tension and control, increase fuel tank structure weight; The adjustment amount of secondly default spring controlled range of pressure is limited, once range of control change needs to reselect spring or project organization.
Summary of the invention
For solving prior art, need to adopt two mechanical type ventilating valves to realize fuel tank exhaust and bleed, the limited problem of adjustment amount of the range of pressure that increases fuel tank structure weight and control, the invention provides a kind of electromechanical ventilating valve of controlling gaseous tension in closed cavity.A kind of electromechanical ventilating valve of controlling gaseous tension in closed cavity of the present invention comprises the electric actuator with a rotating shaft; The valve that makes fuel tank and ambient atmosphere be communicated with or cut off in the rotating shaft of the electric actuator described in being sleeved on; Control the controller of the rotating shaft rotation of described electric actuator; The fuel tank gaseous tension of collection and external atmospheric pressure are calculated to the differential pressure transducer of passing to described controller after pressure difference; Described controller is preset with limes superiors and two end values of smallest limit with the aircraft fuel tank gaseous tension limit range of the pressure difference comparison of the fuel tank gaseous tension transmitting and external atmospheric pressure.
Further, a kind of electromechanical ventilating valve of controlling gaseous tension in closed cavity of the present invention also comprises in the rotating shaft that is arranged on described electric actuator, the position signal of described valve is passed to the position transduser of described controller.
Described valve is mounted in the disk in fuel tank snorkel road.
Described differential pressure transducer gathers fuel tank gaseous tension and bar pressure by fuel tank gaseous tension pipe and barometric pressure solenoid.
Described controller is micro controller system.
The present invention has following good effect than prior art, a kind of electromechanical ventilating valve of controlling gaseous tension in closed cavity of the present invention, adopt a valve just can replace original two mechanical type ventilating valves, realizing fuel tank exhaust or bleed controls, reduced structural weight, and as long as preset limes superiors and two end values of smallest limit of different aircraft fuel tank gaseous tension limit ranges in controller, valve just can regulate arbitrary gas range of pressure; Dynamo-electric ventilating valve is provided with position transduser in addition, thus therefore aperture and the opening time that can accurately control valve accurately control aircraft fuel tank gaseous tension, reduce aircraft fuel tank gaseous tension mobility scale, increase aircraft fuel oil box structure service life.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Fig. 1 is a kind of schematic diagram of controlling the electromechanical ventilating valve of gaseous tension in closed cavity of the present invention.
1. valve in figure, 2. position transduser, 3. electric actuator, 4. controller, 5. fuel tank gaseous tension pipe, 6. fuel tank snorkel road, 7. barometric pressure solenoid, 8. differential pressure transducer.
The specific embodiment
Fig. 1 is a kind of schematic diagram of controlling an embodiment of the electromechanical ventilating valve of gaseous tension in closed cavity of the present invention.The closed cavity of the present embodiment is aircraft fuel tank.A kind of electromechanical ventilating valve of controlling gaseous tension in closed cavity of the present embodiment comprises the electric actuator 3 with a rotating shaft; The valve 1 that makes fuel tank and ambient atmosphere be communicated with or cut off in the rotating shaft of the electric actuator 3 described in being sleeved on; Control the controller 4 of the rotating shaft rotation of described electric actuator 3; The pressure difference of the fuel tank gaseous tension of collection and external atmospheric pressure is passed to the differential pressure transducer 8 of described controller 4; Described controller 4 is preset with limes superiors and two end values of smallest limit with the aircraft fuel tank gaseous tension limit range of the pressure difference comparison of the fuel tank gaseous tension transmitting and external atmospheric pressure.
Further, a kind of electromechanical ventilating valve of controlling gaseous tension in closed cavity of the present invention also comprises in the rotating shaft that is arranged on described electric actuator 3, the position signal of described valve 1 is passed to the position transduser 2 of described controller 4.
Described valve 1 is mounted in the disk in fuel tank snorkel road 6, and described valve 1 adopts key to be connected with described electric actuator 3.
Described differential pressure transducer 8 gathers fuel tank gaseous tension and bar pressure by fuel tank gaseous tension pipe 5 and barometric pressure solenoid 7.
Described controller 4 is micro controller systems.
Controller 4 is by the aircraft fuel tank gaseous tension receiving and the pressure difference of external atmospheric pressure, contrast with limes superiors and the smallest limit of default fuel tank gaseous tension limit range, when pressure difference exceeds limes superiors or smallest limit, described controller 4 sends rotational angle signal to described electric actuator 3, described electric actuator 3 rotates and drives valve 1 to rotate, the valve position signal that described controller 4 transmits according to position transduser 2 simultaneously, accurately controls the rotation of valve 1.The path of vent line 6 and ambient atmosphere has been connected in the rotation of valve 1, makes the fuel tank can exhaust or bleed, has realized aircraft fuel tank gaseous tension balanced with environment atmospheric pressure.
Claims (5)
1. an electromechanical ventilating valve of controlling gaseous tension in closed cavity, is characterized in that: comprise the electric actuator (3) with a rotating shaft; The valve (1) that makes fuel tank and ambient atmosphere be communicated with or cut off in the rotating shaft of the electric actuator (3) described in being sleeved on; Control the controller (4) of the rotating shaft rotation of described electric actuator (3); The pressure difference of the fuel tank gaseous tension of collection and external atmospheric pressure is passed to the differential pressure transducer (8) of described controller (4); Described controller (4) is preset with limes superiors and two end values of smallest limit with the aircraft fuel tank gaseous tension limit range of the pressure difference comparison of the fuel tank gaseous tension transmitting and external atmospheric pressure.
2. a kind of electromechanical ventilating valve of controlling gaseous tension in closed cavity according to claim 1, it is characterized in that: also comprise in the rotating shaft that is arranged on described electric actuator (3), the position signal of described valve (1) is passed to the position transduser (2) of described controller (4).
3. a kind of electromechanical ventilating valve of controlling gaseous tension in closed cavity according to claim 1 and 2, it is characterized in that: described valve (1) is mounted in the disk in fuel tank snorkel road (6), described valve (1) adopts key to be connected with described electric actuator (3).
4. a kind of electromechanical ventilating valve of controlling gaseous tension in closed cavity according to claim 3, is characterized in that: described differential pressure transducer (8) gathers fuel tank gaseous tension and bar pressure by fuel tank gaseous tension pipe (5) and barometric pressure solenoid (7).
5. a kind of electromechanical ventilating valve of controlling gaseous tension in closed cavity according to claim 4, is characterized in that: described controller (4) is micro controller system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530909.3A CN103569370A (en) | 2013-11-01 | 2013-11-01 | Electromechanical ventilating valve capable of controlling gas pressure inside closed cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530909.3A CN103569370A (en) | 2013-11-01 | 2013-11-01 | Electromechanical ventilating valve capable of controlling gas pressure inside closed cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103569370A true CN103569370A (en) | 2014-02-12 |
Family
ID=50042245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310530909.3A Pending CN103569370A (en) | 2013-11-01 | 2013-11-01 | Electromechanical ventilating valve capable of controlling gas pressure inside closed cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103569370A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111038713A (en) * | 2019-12-23 | 2020-04-21 | 中国航空工业集团公司沈阳飞机设计研究所 | Pressure regulating valve with constant pressure difference type parallel structure and regulating method |
| 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 (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5738304A (en) * | 1997-01-10 | 1998-04-14 | Tavano; John B. | Emergency aircraft fuel system |
| CN1396876A (en) * | 2000-11-28 | 2003-02-12 | 北方微机股份公司 | Cabin pressure control system, method of controlling actual pressure inside cabin and outflow valve |
| CN101603602A (en) * | 2009-07-24 | 2009-12-16 | 沈国华 | A kind of intelligent disconnecting valve and method of work thereof |
| US20100173575A1 (en) * | 2009-01-08 | 2010-07-08 | Darrell Horner | Multiple outflow valve cabin pressure control system |
| US20110042520A1 (en) * | 2008-02-07 | 2011-02-24 | Airbus Operations Gmbh | Aircraft Tank System, Refueling Unit And Method For Refueling An Aircraft |
| CN202176725U (en) * | 2011-08-15 | 2012-03-28 | 中国航空工业集团公司西安飞机设计研究所 | Ventilating valve |
| CN203082290U (en) * | 2013-01-31 | 2013-07-24 | 陕西航天泵阀科技集团有限公司 | Emergency stop valve |
| CN103370525A (en) * | 2011-02-17 | 2013-10-23 | 伊顿公司 | Isolation valve with motor driven sealing mechanism |
-
2013
- 2013-11-01 CN CN201310530909.3A patent/CN103569370A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5738304A (en) * | 1997-01-10 | 1998-04-14 | Tavano; John B. | Emergency aircraft fuel system |
| CN1396876A (en) * | 2000-11-28 | 2003-02-12 | 北方微机股份公司 | Cabin pressure control system, method of controlling actual pressure inside cabin and outflow valve |
| US20110042520A1 (en) * | 2008-02-07 | 2011-02-24 | Airbus Operations Gmbh | Aircraft Tank System, Refueling Unit And Method For Refueling An Aircraft |
| US20100173575A1 (en) * | 2009-01-08 | 2010-07-08 | Darrell Horner | Multiple outflow valve cabin pressure control system |
| CN101603602A (en) * | 2009-07-24 | 2009-12-16 | 沈国华 | A kind of intelligent disconnecting valve and method of work thereof |
| CN103370525A (en) * | 2011-02-17 | 2013-10-23 | 伊顿公司 | Isolation valve with motor driven sealing mechanism |
| CN202176725U (en) * | 2011-08-15 | 2012-03-28 | 中国航空工业集团公司西安飞机设计研究所 | Ventilating valve |
| CN203082290U (en) * | 2013-01-31 | 2013-07-24 | 陕西航天泵阀科技集团有限公司 | Emergency stop valve |
Non-Patent Citations (1)
| Title |
|---|
| 郭志刚: "飞机气动活门类附件的特点与分析", 《民航资源网》, 17 May 2009 (2009-05-17) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111038713A (en) * | 2019-12-23 | 2020-04-21 | 中国航空工业集团公司沈阳飞机设计研究所 | Pressure regulating valve with constant pressure difference type parallel structure and regulating method |
| CN111038713B (en) * | 2019-12-23 | 2023-06-20 | 中国航空工业集团公司沈阳飞机设计研究所 | Pressure regulating valve with constant pressure difference type parallel structure and regulating method |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2011117534A (en) | VARIABLE GEOMETRY CONTROL SYSTEM IN GAS-TURBINE ENGINES | |
| ATE394726T1 (en) | PNEUMATIC PRESSURE REGULATOR VALVE | |
| CN204575355U (en) | A kind of vacuum simulation test device with reduction of blood pressure in high-speed and explosive decompression function | |
| CN203549024U (en) | Decompression assembly for regulator and regulator for fluid converting system | |
| CN103569370A (en) | Electromechanical ventilating valve capable of controlling gas pressure inside closed cavity | |
| US20160363228A1 (en) | Valve assembly and method of controlling flow of fluid | |
| MX337974B (en) | Height control valve assembly for axle/suspension systems. | |
| US8851107B2 (en) | Shutoff valve integrated into a pressure regulator | |
| CN102620017A (en) | High-pressure electromagnetic pneumatic-control decompression valve | |
| CN103672078A (en) | Fluid adjuster, actuator and method for improving stability of fluid adjuster | |
| CN104343665A (en) | Piston compressor with power regulation | |
| CN201909073U (en) | Roots blower safety valve | |
| CN204328150U (en) | A kind of starting control valve promoting pressure regulation ability | |
| CN207213271U (en) | Air pressure protecting system for pneumatic membrane building | |
| CN104358904B (en) | Diaphragm type control valve | |
| CN103629422A (en) | Differential pressure cushion valve for vacuumizing air changing | |
| CN203488824U (en) | Pneumatic high-performance film single-seat regulating valve | |
| CN204516680U (en) | Sealed type magnetic force gas differential pressure switch | |
| CN202733088U (en) | Stepless adjustable mechanical air bleed valve | |
| CN201439836U (en) | Vacuum regulating valve capable of automatically regulating opening of valve | |
| CN204062072U (en) | Low temperature Emergeny Cutoff Valves open in usual | |
| CN203797030U (en) | Pneumatic sphere eccentric rotary valve | |
| CN202266683U (en) | Novel electric flow valve | |
| CN204226250U (en) | surge protection device | |
| RU98833U1 (en) | GAS PRESSURE REGULATOR |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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 |
Application publication date: 20140212 |