CN106838402B - A kind of air pressure reducer and the aircraft with it - Google Patents
A kind of air pressure reducer and the aircraft with it Download PDFInfo
- Publication number
- CN106838402B CN106838402B CN201710205958.8A CN201710205958A CN106838402B CN 106838402 B CN106838402 B CN 106838402B CN 201710205958 A CN201710205958 A CN 201710205958A CN 106838402 B CN106838402 B CN 106838402B
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- Prior art keywords
- valve
- cavity
- spring
- gas outlet
- air pressure
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of air pressure reducer and with its aircraft, it is related to aircraft fuel system technical field.The air pressure reducer includes: shell, and one end of the shell is provided with the first cavity, and the other end is provided with the second cavity；Intercommunicating pore is provided between first cavity and the second cavity；First valve, first valve are mounted in first cavity, are provided with air inlet on first valve；Second valve, second valve are mounted in second cavity；Gas outlet is provided in housing sidewall between first cavity and second cavity, the gas outlet is connected to the intercommunicating pore；By the collaborative work of the first valve and the second valve, the reduction of gas outlet gas pressure is realized.The aircraft includes air pressure reducer as described above.The present invention has the advantages that gas pressure can be reduced to the standard value of setting, avoid the pressure in system pipeline excessive, installation is safe and reliable, and releasing pressure automatically may be implemented.
Description
Technical field
The present invention relates to aircraft fuel system air pressure reducer technical fields, and in particular to a kind of air pressure reducer and
With its aircraft.
Background technique
Aircraft air pressure reducer is mounted on fuel oil neutral gas system pipeline, and effect is by system mesohigh gas pressure
Power is rapidly decreased to low-pressure state required for system.Decompressor in the prior art, which is not able to satisfy, quickly reduces gas pressure
Demand, and install complicated.
Summary of the invention
The object of the present invention is to provide a kind of air pressure reducer and with its aircraft, to solve or at least mitigate background
In the presence of technology at least one at the problem of.
The technical scheme is that providing a kind of air pressure reducer, include:
Shell, one end of the shell are provided with the first cavity, and the other end is provided with the second cavity；First cavity with
Intercommunicating pore is provided between second cavity；
First valve, first valve are mounted in first cavity, are provided with air inlet on first valve；
Second valve, second valve are mounted in second cavity；
Gas outlet, the gas outlet and institute are provided in housing sidewall between first cavity and second cavity
State intercommunicating pore connection；
First valve have the first aperture, when the pressure value of the gas outlet is less than the first setting value, gas by
The air inlet passes through first valve to gas outlet ftercompction；
When the pressure value of the gas outlet is more than or equal to the first setting value, the air inlet reaches flat with gas outlet pressure
Weighing apparatus state；
When the pressure value of the gas outlet is greater than the second setting value, the valve of second valve is opened, described in realization
The pressure release of gas outlet.
Preferably, first valve includes:
First valve, first valve include first sleeve section and the first seal section, and first seal section includes the
One cylinder changeover portion and the first conical section；The diameter of the first cylinder changeover portion is less than the diameter of the first sleeve section, institute
It states and is provided with the first recirculation hole on the side wall of the first cylinder changeover portion；
First spring, the length of first spring are greater than the length of the first sleeve section, and the one of first spring
End is protruded into the first sleeve section and is contacted with the end face of the first cylinder changeover portion, and the other end is fixed；
Mandril, one end of the mandril are connect with the end face of first conical section, and the other end extends to second valve
In door；
Second valve includes second spring, and one end of the second spring is fixed, the other end and the ejector pin contact.
Preferably, second valve also includes:
Second valve, second valve include second sleeve section, and the length of the second sleeve section is less than described second
One end of the length of spring, the second sleeve section is provided with axial step；
Spring pressuring plate is provided with the tabletting through-hole of connection two sides on the spring pressuring plate；
The second sleeve section is protruded into one end of the second spring, and the other end stretches out the second sleeve section and the bullet
The side of spring tabletting contacts.
Preferably, second valve also includes:
Bushing, the bushing are provided centrally with bushing through-hole, and one end of the bushing is provided with flange face；
And third spring, one end of the third spring are pressed on the side of the flange face, the other end is fixed；
Annular groove, the annular groove and the flange are provided on the side of second cavity and the flange face contact
The side in face forms toroidal cavity, and the toroidal cavity is connected to the gas outlet.
Preferred: the bushing through-hole is provided with gasket far from one end of the flange face；
Second valve also includes the second conical section, is provided with the second recirculation hole on the side of second conical section,
Second circular conical surface contacts to form sealing with the gasket；
It is additionally provided with thimble in second cavity, when the bushing compresses the third spring, the thimble can
It protrudes into the bushing and opens second valve.
Preferably, the air pressure reducer also includes support base, the support base in second cavity with
The shell is fixedly connected, and the fixing end of the third spring is pressed in the support base；
The support base is provided centrally with threaded hole, and the thimble is threadedly engaged with the threaded hole.
Preferably, the air pressure reducer also includes housing, is provided with multiple through-holes on the housing, the housing with
The shell is fixedly connected.
Preferably, first valve also includes the first valve body, and first valve body and the shell are removably
It connects, the first holding screw is provided on the shell, first holding screw is for locking first valve body.
Preferably, the support base is removably connect with the shell, and it is tight that second is provided on the shell
Determine screw, second holding screw is for locking the support base.
The present invention also provides a kind of aircraft, the aircraft includes air pressure reducer as described above.
The present invention has the advantages that gas pressure can be reduced to the standard of setting by air pressure reducer of the invention
Value, avoids the pressure in system pipeline excessive, and installation is safe and reliable, and releasing pressure automatically may be implemented.
Detailed description of the invention
Fig. 1 is the schematic diagram of the air pressure reducer of one embodiment of the invention.
Wherein, 1- shell, the first valve of 2-, the first valve of 21-, the first spring of 22-, 23- mandril, the first valve body of 24-, 3-
Second valve, 31- second spring, the second valve of 32-, 33- spring pressuring plate, 34- bushing, 35- third spring, 4- intercommunicating pore, 5-
Gas outlet, 6- thimble, 7- support base, the first holding screw of 8-, the second holding screw of 9-, 10- housing.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.Under
Face is described in detail the embodiment of the present invention in conjunction with attached drawing.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the present invention
The limitation of range.
Such as Fig. 1, a kind of air pressure reducer includes shell 1, the first valve 2 and the second valve 3.One end of shell 1 is arranged
Have the first cavity (the left side cavity in attached drawing 1), the other end is provided with the second cavity (the right side cavity in attached drawing 1)；First chamber
Intercommunicating pore 4 is provided between body and the second cavity, intercommunicating pore 4 is used for the circulation of gas.First valve 2 is mounted on the first cavity
It is interior, air inlet is provided on the first valve 2, the air inlet connects other pipelines by ozzle；Second valve 3 is mounted on second
In cavity；Gas outlet 5, one end of gas outlet 5 and intercommunicating pore 4 are provided in housing sidewall between first cavity and the second cavity
Connection, the other end connect other pipelines by ozzle.
First valve 2 have the first aperture, when the pressure value of gas outlet 5 is less than the first setting value, gas by it is described into
Port passes through the first valve 2 to gas outlet ftercompction；When the pressure value of gas outlet 5 is more than or equal to the first setting value, the air inlet
Mouth reaches equilibrium state with gas outlet pressure；When the pressure value of gas outlet 5 is greater than the second setting value, the valve of the second valve 3
It opens, realizes the pressure release of the gas outlet.
In the present embodiment, the first valve 2 includes the first valve 21, the first spring 22, mandril 23 and the first valve body 24.
First valve 21 includes first sleeve section and the first seal section, and first seal section includes the first cylinder changeover portion
With the first conical section, the first seal section is connect by the first cylinder changeover portion with first sleeve section；The first cylinder changeover portion
Diameter be less than the diameter of the first sleeve section, the junction of the first cylinder changeover portion and sleeve sections forms an axial step,
The axial step is used to position the end face of the first spring 22, is provided with the first circulation on the side wall of the first cylinder changeover portion
Hole, the circulation for gas.
The length of first spring 22 is greater than the length of the first sleeve section, and one end of the first spring 22 protrudes into described first
Sleeve sections contact (i.e. axial step) with the end face of the first cylinder changeover portion, and the other end is fixed.
One end of mandril 23 is connect with the first conical section far from the end face of first sleeve section, and the other end extends to the second valve
In 3.
Second valve 3 includes second spring 31, and one end of second spring 31 is fixed, and the other end is contacted with mandril 23.
First valve body 24 is removably connect with shell 1, and the first holding screw 8, the first tightening are provided on shell 1
Screw 8 is for locking first valve body 24.
In the present embodiment, the first valve body 24 is fixedly connected by screw thread with shell 1, and the first valve body 24 is provided centrally with
Receiving portion, the first valve 21 are mounted in described accommodation section, and the inner cavity of first sleeve section and receiving portion is slidably matched, the first spring
22 one end is withstood on the first valve body 24, and the other end is withstood on the end face of the first cylinder changeover portion, the first spring 22 and the second bullet
Spring 31 is connected by mandril 23, and the first spring 22 is provided commonly for guaranteeing the aperture of the first valve with second spring 31.
In the present embodiment, the original aperture of the first valve 2 is designed as 3 millimeters, and the first setting value is First spring 22 reaches equilibrium state with second spring 31；When the pressure value of gas outlet is less thanWhen, second spring 31 extends, and the aperture of the compression of the first spring 22, the first valve 2 increases, and passes through air inlet
Mouth carries out ftercompction to gas outlet.When the pressure value of gas outlet is more than or equal to When, the first spring 22 and second
Spring 31 reaches equilibrium state again, and air inlet stops ftercompction to gas outlet.
In the present embodiment, the second valve 3 also includes the second valve 32, spring pressuring plate 33, bushing 34 and third spring 35.
Second valve 32 includes second sleeve section, and the length of the second sleeve section is less than the length of second spring 31, institute
The one end for stating second sleeve section is provided with axial step；
The tabletting through-hole of connection two sides is provided on spring pressuring plate 33；
The second sleeve section is protruded into one end of second spring 31, and the other end stretches out the second sleeve section and spring pressuring plate
33 side contact.
Bushing 34 is provided centrally with bushing through-hole, and one end of bushing 34 is provided with flange face；
One end of third spring 35 is pressed on the side of the flange face, and the other end is fixed；
Annular groove, the annular groove and the flange are provided on the side of second cavity and the flange face contact
The side in face forms toroidal cavity, and the toroidal cavity is connected to the gas outlet, and third spring 35 is for guaranteeing that bushing 34 exists
It is contacted under normal condition with the end face of the second cavity.
Specifically, the second valve 32 is mounted in the bushing through-hole of bushing 34, the second sleeve section and the bushing are logical
Hole is slidably matched, and the bushing through-hole is provided with gasket far from one end of the flange face；Second valve 32 also includes second
Conical section is provided with the second recirculation hole on the side of second conical section, and second circular conical surface is contacted with the gasket
Form sealing；
It is additionally provided with thimble 6 in second cavity, when the pressure value of gas outlet is greater than the second setting value, gas is from out
Port, which enters, pushes bushing 34 in the toroidal cavity, when bushing 34 compresses third spring 35, thimble 6 be can extend into bushing 34
And open the second valve 32.
In the present embodiment, the second setting value is 0.49MPa.For example, being caused when blocking occurs for the pipeline of gas outlet connection
When gas outlet pressure value is increased beyond 0.49MPa, gas enters promotion bushing 34 in circular bore through air inlet, and bushing 34 is to the right
(direction in attached drawing 1) motion compresses third spring 35, in the motion process of bushing 34, thimble 6 enters in bushing through-hole simultaneously
The second circular conical surface of the second valve 32 is pressed, then the second valve 32 compresses second spring 31, the second valve 32 and the sealing
Pad separation, air-flow flow out pressure release through second recirculation hole.
In the present embodiment, the air pressure reducer also includes support base 7, support base 7 in the second cavity with
Shell 1 is fixedly connected, and the fixing end of third spring 35 is pressed in support base 7；Support base 7 and shell 1 are removably
It connects, the second holding screw 9 is provided on shell 1, the second holding screw 9 is used for locking support pedestal 7.
Support base 7 is provided centrally with threaded hole, and thimble 6 is threadedly engaged with the threaded hole.
In the present embodiment, the air pressure reducer also includes housing 10, and multiple through-holes are provided on housing 10, are used for
The circulation of gas, housing 10 are fixedly connected with shell 1.
Air pressure reducer in the present embodiment mainly uses the aperture of the intracorporal opening and closing element of control valve to adjust medium
Flow and have strict demand to the mounting means of decompressor to reach the pressure for reducing medium.During the installation process
It only needs conduit importing and exporting position and be docked with finished product.
The present embodiment additionally provides a kind of aircraft, and the aircraft includes air pressure reducer as described above.By using
Pressure value on aircraft fuel oil neutral gas system pipeline can be reduced to the standard value of setting, kept away by the air pressure reducer
The pressure exempted from system pipeline is excessive, and installation is safe and reliable, and releasing pressure automatically may be implemented.
Finally it is noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that: it is still
It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes；And these are modified or replaceed, the essence for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
Mind and range.
Claims (7)
1. a kind of air pressure reducer, characterized by comprising:
Shell (1), one end of the shell (1) are provided with the first cavity, and the other end is provided with the second cavity, first cavity
Intercommunicating pore (4) are provided between the second cavity；
First valve (2), first valve (2) are mounted in first cavity, be provided on first valve (2) into
Port, wherein first valve (2) further includes the first valve (21), the first spring (22) and mandril (23), and described
One valve (21) includes first sleeve section and the first seal section, and first seal section includes the first cylinder changeover portion and the first circle
Section is bored, the diameter of the first cylinder changeover portion is less than the diameter of the first sleeve section, the side of the first cylinder changeover portion
The first recirculation hole is provided on wall；The length of first spring (22) be greater than the first sleeve section length, described first
One end of spring (22) is protruded into the first sleeve section and is contacted with the end face of the first cylinder changeover portion, and the other end is fixed；Institute
The one end for stating mandril (23) is connect with the end face of first conical section, and the other end extends in the second valve (3)；
Second valve (3), second valve (3) are mounted in second cavity, wherein second valve (3) is into one
Step includes the second valve (32), second spring (31), spring pressuring plate (33), bushing (34) and third spring (35), and described second
Valve (32) includes second sleeve section, and the length of the second sleeve section is less than the length of the second spring, and described second set
One end of cylinder section is provided with axial step；The tabletting through-hole of connection two sides is provided on the spring pressuring plate (33)；Described
The second sleeve section is protruded into one end of two springs (31), and the other end stretches out the second sleeve section and the spring pressuring plate (33)
Side contact；The bushing (34) is provided centrally with bushing through-hole, and one end of the bushing (34) is provided with flange face；Institute
The one end for stating third spring (35) is pressed on the side of the flange face, and the other end is fixed；Second cavity and the flange
Annular groove, the side formation toroidal cavity of the annular groove and the flange face, the annular are provided on the side of face contact
Cavity is connected to gas outlet (5)；
Be provided in housing sidewall between first cavity and second cavity gas outlet (5), the gas outlet (5) with
Intercommunicating pore (4) connection；
First valve (2) has the first aperture, when the pressure value of the gas outlet (5) is less than the first setting value, gas
First valve is passed through to gas outlet ftercompction from the air inlet；
When the pressure value of the gas outlet is more than or equal to the first setting value, the air inlet and gas outlet pressure reach equilibrium-like
State；
When the pressure value of the gas outlet is greater than the second setting value, the valve of second valve is opened, and realizes the outlet
The pressure release of mouth.
2. air pressure reducer as described in claim 1, it is characterised in that: the bushing through-hole far from the flange face one
End is provided with gasket；
Second valve (32) also includes the second conical section, is provided with the second recirculation hole on the side of second conical section,
Second circular conical surface contacts to form sealing with the gasket；
Thimble (6) are additionally provided in second cavity, when the bushing (34) compress third spring (35), the top
Needle (6) can extend into the bushing (34) and open second valve (32).
3. air pressure reducer as claimed in claim 2, it is characterised in that: the air pressure reducer also includes support base
(7), the support base (7) is fixedly connected in second cavity with the shell (1), and third spring (35) are consolidated
Fixed end is pressed on the support base (7)；
The support base (7) is provided centrally with threaded hole, and the thimble (6) is threadedly engaged with the threaded hole.
4. air pressure reducer as claimed in claim 3, it is characterised in that: the air pressure reducer also includes housing
(10), multiple through-holes are provided on the housing (10), the housing (10) is fixedly connected with the shell (1).
5. air pressure reducer as claimed in claim 4, it is characterised in that: first valve (2) also includes the first valve body
(24), first valve body (24) removably connect with the shell (1), and it is tight that first is provided on the shell (1)
Determine screw (8), first holding screw (8) is for locking first valve body (24).
6. air pressure reducer as claimed in claim 5, it is characterised in that: the support base (7) and the shell (1) with
Removably connects, and is provided with the second holding screw (9) on the shell (1), and second holding screw (9) is for locking
The support base (7).
7. a kind of aircraft, it is characterised in that: the aircraft includes such as air pressure reducer as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710205958.8A CN106838402B (en) | 2017-03-31 | 2017-03-31 | A kind of air pressure reducer and the aircraft with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710205958.8A CN106838402B (en) | 2017-03-31 | 2017-03-31 | A kind of air pressure reducer and the aircraft with it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106838402A CN106838402A (en) | 2017-06-13 |
| CN106838402B true CN106838402B (en) | 2019-08-23 |
Family
ID=59142001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710205958.8A Active CN106838402B (en) | 2017-03-31 | 2017-03-31 | A kind of air pressure reducer and the aircraft with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106838402B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5787918A (en) * | 1994-11-04 | 1998-08-04 | Kosan Teknova A/S | Reduction valve and gas container valve for a bottle for liquified gas |
| CN200952592Y (en) * | 2006-10-10 | 2007-09-26 | 重庆卡福汽车制动转向系统有限公司 | Relief pressure valve for gear box |
| CN201028073Y (en) * | 2006-12-22 | 2008-02-27 | 重庆卡福汽车制动转向系统有限公司 | Vehicle reducing valve |
| CN201844084U (en) * | 2010-11-12 | 2011-05-25 | 平湖市瑞阳精密机械有限公司 | Novel stainless-steel pressure reducer |
-
2017
- 2017-03-31 CN CN201710205958.8A patent/CN106838402B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5787918A (en) * | 1994-11-04 | 1998-08-04 | Kosan Teknova A/S | Reduction valve and gas container valve for a bottle for liquified gas |
| CN200952592Y (en) * | 2006-10-10 | 2007-09-26 | 重庆卡福汽车制动转向系统有限公司 | Relief pressure valve for gear box |
| CN201028073Y (en) * | 2006-12-22 | 2008-02-27 | 重庆卡福汽车制动转向系统有限公司 | Vehicle reducing valve |
| CN201844084U (en) * | 2010-11-12 | 2011-05-25 | 平湖市瑞阳精密机械有限公司 | Novel stainless-steel pressure reducer |
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| Publication number | Publication date |
|---|---|
| CN106838402A (en) | 2017-06-13 |
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