CN109931164A - A kind of air pressure regulator with corrugated sealing - Google Patents
A kind of air pressure regulator with corrugated sealing Download PDFInfo
- Publication number
- CN109931164A CN109931164A CN201811392513.6A CN201811392513A CN109931164A CN 109931164 A CN109931164 A CN 109931164A CN 201811392513 A CN201811392513 A CN 201811392513A CN 109931164 A CN109931164 A CN 109931164A
- Authority
- CN
- China
- Prior art keywords
- shell
- lever
- cavity
- air pressure
- 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.)
- Pending
Links
Landscapes
- Diaphragms And Bellows (AREA)
Abstract
The present invention relates to a kind of air pressure regulators with corrugated sealing, including shell (1,2), bellows mechanism (3), arm spring (4), lever (5), limit screw (6), nozzle (7), the first adjustment spring (8), the second adjustment spring (9), spring base (10), valve (11), piston (12), corrugated diaphragm (13), control oil inlet (16) and valve bushing (17)；Bellow seal structure through the invention, ensure that on air pressure regulator lever mechanism work when or so two chambers sealing performance, improve the functional reliability of air pressure regulator.
Description
Technical field
And the air pressure regulator in aero-engine fuel control system, and in particular to a kind of with corrugated sealing
Air pressure regulator.
Background technique
There is the air pressure regulator for high-altitude auxiliary adjustment in existing aero-engine fuel control system, structure is as schemed
Shown in 1, it is generally provided with lever mechanism, the principle of air pressure regulator is the variation with aircraft flight height and speed, hair
Motivation import stagnation pressure P1* can also change, and bellows mechanism experiences the variation of engine intake stagnation pressure P1* and compresses or swollen
It is swollen, make lever fine motion up and down centered on bearing, changes the lever other end to jet expansion toward the masking of adjusting cavity (low pressure oil)
Amount makes valve with piston up-down to change the pressure of piston cavity of resorption control oil, and final change is supplied to engine fuel
Amount seals against each other between adjusting cavity and right side air cavity by the diaphragm of rubber being applied on lever on the left of lever, due to engine into
Mouthful stagnation pressure P1* is always constantly changing, and lever needs constantly that jet expansion masking amount is corrected in fine motion up and down, with lever it is continuous on
Lower fine motion, diaphragm of rubber can also deform always, and since ordinary rubber membrane configuration is limited, long-term continuous deform makes its certain
A position sustained stress is concentrated, and is finally cracked, crack propagation run through after there is a phenomenon where adjusting cavity and air cavity intercommunication, cause
Bellows mechanism cannot normally experience the variation of engine intake stagnation pressure P1*, make air pressure regulator cisco unity malfunction.If energy
Design a kind of preferable diaphragm of rubber of retractility, it is long-term constantly fine motion in the state of can good work, will effectively mention
The use reliability of hyperbar regulating device.
Summary of the invention
The purpose of the present invention: in order to make the diaphragm on air pressure regulator lever mechanism have higher use reliability,
A kind of novel lever mechanism diaphragm that retractility is high need to be designed, making lever mechanism, diaphragm is not susceptible to the event of crackle at work
Barrier, improves the functional reliability of barostat.
Technical solution of the present invention: a kind of air pressure regulator with corrugated sealing, including shell (1,2), bellows
Mechanism (3), arm spring (4), lever (5), limit screw (6), nozzle (7), the first adjustment spring (8), the second adjustment spring
(9), spring base (10), valve (11), piston (12), corrugated diaphragm (13), control oil inlet (16) and valve bushing (17)；
Shell (1,2) is divided into two chambers in left and right by corrugated diaphragm (13), and right chamber is air cavity (14), and left chamber is adjusting cavity
(15)；
Air cavity (14) is provided with blow vent, and for being connected to engine charge gas circuit, bellows mechanism (3) is arranged in air cavity, uses
In experiencing engine intake stagnation pressure；
Lever (5) is spindle rotationally arranged in shell (1,2), and lever runs through corrugated diaphragm (13), and lever right end is located at gas
In chamber (14), lever left end is located in adjusting cavity (14), and balance pivot is located at air cavity (14) or adjusting cavity (15)；Lever right end with
Arm spring (4) are provided between shell；
Valve (11) and bushing are mounted on shell, form valve mechanism；Valve (11) and piston (12) integrally move, living
It fills in (12) and adjusting cavity is divided into epicoele and cavity of resorption, oil circuit, the oil communication epicoele and cavity of resorption are provided on shell；The oil
Road is equipped with nozzle in the oil outlet of epicoele, and the shell is provided with control oil inlet (16), the oil communication to control it is oily into
Mouth (16)；Lever left end is adapted with nozzle, and the upper and lower displacement of lever left end can change the aperture of nozzle；
In adjustment seat setting on the inner wall of the housing, and it is located at the epicoele, the limit screw is threadedly engaged with adjustment seat, is revolved
Spacing between limit screw and piston can be adjusted by turning limit screw；The first adjusting bullet is provided between adjustment seat and spring base
Spring is provided with the second adjustment spring between spring base and piston.
Preferably, the corrugated diaphragm is circular contour or rectangular profile.
Preferably, the corrugated diaphragm is vulcanized rubber, plastics or polyurethane material.
Preferably, the shell includes left shell (1) and right shell body (2).
Preferably, the left shell (1) forms adjusting cavity, and the right shell body (2) forms air cavity.
Beneficial effects of the present invention: bellow seal structure through the invention ensure that the lever on air pressure regulator
The sealing performance of two chambers, improves the functional reliability of air pressure regulator when mechanism works or so.
Detailed description of the invention
Fig. 1 is prior-art illustration；
Fig. 2 is the scheme of installation of corrugated diaphragm and lever of the invention；
Fig. 3 is structural schematic diagram of the invention；
Fig. 4 is circular wave diaphragm schematic diagram；
Wherein: 1- shell, 2- shell, 3- bellows mechanism, 4- arm spring, 5- lever, 6- limit screw, 7- nozzle, 8-
First adjustment spring, the second adjustment spring of 9-, 10- spring base, 11- valve, 12- piston, 13- corrugated diaphragm, 16- control oil into
Mouth, 17- bushing, 18- adjustment seat.
Specific embodiment
Such as Fig. 1, a kind of air pressure regulator with corrugated sealing, including shell (1,2), bellows mechanism (3), thick stick
Bar spring (4), lever (5), limit screw (6), nozzle (7), the first adjustment spring (8), the second adjustment spring (9), spring base
(10), valve (11), piston (12), corrugated diaphragm (13), control oil inlet (16) and valve bushing (17)；
Shell (1,2) is divided into two chambers in left and right by corrugated diaphragm (13), and right chamber is air cavity (14), and left chamber is adjusting cavity
(15)；
Air cavity (14) is provided with blow vent, and for being connected to engine charge gas circuit, bellows mechanism (3) is arranged in air cavity, uses
In experiencing engine intake stagnation pressure；
Lever (5) is spindle rotationally arranged in shell (1,2), and lever runs through corrugated diaphragm (13), and lever right end is located at gas
In chamber (14), lever left end is located in adjusting cavity (14), and balance pivot is located at air cavity (14) or adjusting cavity (15)；Lever right end with
Arm spring (4) are provided between shell；
Valve (11) and bushing are mounted on shell, form valve mechanism；Valve (11) and piston (12) integrally move, living
It fills in (12) and adjusting cavity is divided into epicoele and cavity of resorption, oil circuit, the oil communication epicoele and cavity of resorption are provided on shell；The oil
Road is equipped with nozzle in the oil outlet of epicoele, and the shell is provided with control oil inlet (16), the oil communication to control it is oily into
Mouth (16)；Lever left end is adapted with nozzle, and the upper and lower displacement of lever left end can change the aperture of nozzle；
In adjustment seat setting on the inner wall of the housing, and it is located at the epicoele, the limit screw is threadedly engaged with adjustment seat, is revolved
Spacing between limit screw and piston can be adjusted by turning limit screw；The first adjusting bullet is provided between adjustment seat and spring base
Spring is provided with the second adjustment spring between spring base and piston；The corrugated diaphragm is circular contour；The corrugated diaphragm is sulphur
Change rubber material.
Claims (5)
1. a kind of air pressure regulator with corrugated sealing, including shell (1,2), bellows mechanism (3), arm spring (4),
Lever (5), limit screw (6), nozzle (7), the first adjustment spring (8), the second adjustment spring (9), spring base (10), valve
(11), piston (12), corrugated diaphragm (13), control oil inlet (16) and valve bushing (17)；
Shell (1,2) is divided into two chambers in left and right by corrugated diaphragm (13), and right chamber is air cavity (14), and left chamber is adjusting cavity (15)；
Air cavity (14) is provided with blow vent, and for being connected to engine charge gas circuit, bellows mechanism (3) is arranged in air cavity, for feeling
By engine intake stagnation pressure；
Lever (5) is spindle rotationally arranged in shell (1,2), and lever runs through corrugated diaphragm (13), and lever right end is located at air cavity
(14) in, lever left end is located in adjusting cavity (14), and balance pivot is located at air cavity (14) or adjusting cavity (15)；Lever right end and shell
Arm spring (4) are provided between body；
Valve (11) and bushing are mounted on shell, form valve mechanism；Valve (11) and piston (12) integrally move, piston
(12) adjusting cavity is divided into epicoele and cavity of resorption, oil circuit, the oil communication epicoele and cavity of resorption is provided on shell；The oil circuit
Nozzle is installed in the oil outlet of epicoele, the shell is provided with control oil inlet (16), the oil communication to control oil inlet
(16)；Lever left end is adapted with nozzle, and the upper and lower displacement of lever left end can change the aperture of nozzle；
In adjustment seat setting on the inner wall of the housing, and it is located at the epicoele, the limit screw is threadedly engaged with adjustment seat, and rotation stops
Dynamic screw can adjust the spacing between limit screw and piston；The first adjustment spring is provided between adjustment seat and spring base,
The second adjustment spring is provided between spring base and piston.
2. a kind of air pressure regulator with corrugated sealing according to claim 1, it is characterized in that: the ripple every
Film is circular contour or rectangular profile.
3. a kind of air pressure regulator with corrugated sealing according to claim 1, it is characterized in that: the ripple every
Film is vulcanized rubber, plastics or polyurethane material.
4. a kind of air pressure regulator with corrugated sealing according to claim 1, it is characterized in that: the shell packet
Include left shell (1) and right shell body (2).
5. a kind of air pressure regulator with corrugated sealing according to claim 1, it is characterized in that: the left shell
(1) adjusting cavity is formed, the right shell body (2) forms air cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392513.6A CN109931164A (en) | 2018-11-21 | 2018-11-21 | A kind of air pressure regulator with corrugated sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392513.6A CN109931164A (en) | 2018-11-21 | 2018-11-21 | A kind of air pressure regulator with corrugated sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109931164A true CN109931164A (en) | 2019-06-25 |
Family
ID=66984640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811392513.6A Pending CN109931164A (en) | 2018-11-21 | 2018-11-21 | A kind of air pressure regulator with corrugated sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109931164A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635803A (en) * | 2020-12-16 | 2022-06-17 | 中国航发商用航空发动机有限责任公司 | Aircraft engine fuel system and aircraft engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1171312A (en) * | 1966-03-15 | 1969-11-19 | Lucas Industries Ltd | Fuel Systems for Gas Turbine Engines |
| CN107013339A (en) * | 2017-05-28 | 2017-08-04 | 西安成立航空制造有限公司 | A kind of aero-engine fuel nozzle main combustion stage working connection valve and its application method |
-
2018
- 2018-11-21 CN CN201811392513.6A patent/CN109931164A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1171312A (en) * | 1966-03-15 | 1969-11-19 | Lucas Industries Ltd | Fuel Systems for Gas Turbine Engines |
| CN107013339A (en) * | 2017-05-28 | 2017-08-04 | 西安成立航空制造有限公司 | A kind of aero-engine fuel nozzle main combustion stage working connection valve and its application method |
Non-Patent Citations (3)
| Title |
|---|
| B．X．阿弗鲁辛科: "《橡胶密封》", 31 October 1983, 机械工业出版社 * |
| 胡世民: "《民航发动机控制》", 31 January 2000, 航空工业出版社 * |
| 黄朝辉: "《航空发动机燃油控制系统典型零组件失效与预防》", 31 May 2015, 国防工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635803A (en) * | 2020-12-16 | 2022-06-17 | 中国航发商用航空发动机有限责任公司 | Aircraft engine fuel system and aircraft engine |
| CN114635803B (en) * | 2020-12-16 | 2023-09-08 | 中国航发商用航空发动机有限责任公司 | Aeroengine fuel system and aeroengine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9611947B2 (en) | Valve assembly and method of controlling flow of fluid | |
| EP1618038B1 (en) | Fully integrated aircraft cabin pressure control system valve | |
| US20100170574A1 (en) | Gas mixing pump with variable injection section | |
| CN102165387A (en) | Pressure reducing valve | |
| CN109931164A (en) | A kind of air pressure regulator with corrugated sealing | |
| CN204783279U (en) | Pneumatic control bleed valve and have its compressor system and aircraft | |
| CN107645002A (en) | Fuel supply valve for fuel cell system | |
| CN111038713A (en) | Pressure regulating valve with constant pressure difference type parallel structure and regulating method | |
| WO2021073650A1 (en) | Device for adjusting damping force and height, seat and vehicle suspension system | |
| CN109441679A (en) | A kind of valve regulating mechanism | |
| CN114738118B (en) | Hypersonic air inlet instability early warning and control mechanism design method | |
| CN102705552A (en) | Pressure regulator with excessive flow auto-closing function by setting maximum flow | |
| CN207621005U (en) | A kind of diaphragm stabilized pressure pump | |
| CN107762637B (en) | A kind of adaptive pressure difference correcting device | |
| CN111911381B (en) | Nozzle differential pressure valve mechanism with damping piston | |
| CN210178819U (en) | Oil supplementing device for hydraulic damper | |
| CN210687140U (en) | Gas pressure stabilizing valve | |
| CN219691689U (en) | Hydraulic pump variable regulating mechanism with pressure stabilizing function | |
| CN102466066B (en) | Film reducing valve | |
| CN109958804B (en) | Proportional pressure stabilizing valve | |
| CN207178805U (en) | A kind of high-precision absolute pressure pressure reducer | |
| CN110159699A (en) | The recharging oil device of pressure compensation hydraulic damper | |
| CN205659815U (en) | Foam generator | |
| CN210461816U (en) | Pneumatic handle pressure regulating valve for special workover machinery and special engineering truck | |
| CN205559907U (en) | Automatic controller that reduces pressure of unsteady flow volume |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Zhuangfeng Inventor after: Li Yang Inventor after: Zhang Yibao Inventor after: Qiao Yun Inventor after: Feng Yin Inventor after: Zan Yuhan Inventor before: Wu Zhuangfeng |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190625 |