CN104047734B - Aviation piston engine starts valve and has its aviation piston engine - Google Patents
Aviation piston engine starts valve and has its aviation piston engine Download PDFInfo
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- CN104047734B CN104047734B CN201410275717.7A CN201410275717A CN104047734B CN 104047734 B CN104047734 B CN 104047734B CN 201410275717 A CN201410275717 A CN 201410275717A CN 104047734 B CN104047734 B CN 104047734B
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Abstract
The present invention provides a kind of aviation piston engine to start valve and have its aviation piston engine. This aviation piston engine starts valve and comprises: valve body, valve body has container cavity, the first end of valve body has the first port being connected with container cavity, and first end mouthpiece has conical surface, and valve body is provided with the air inlet port radially running through valve body and be connected with container cavity; Valve body, valve body is arranged in container cavity removablely, the first end of valve body has the sealing cone that the conical surface with the first port coordinates, and valve body has the open position of sealing cone and the disengaging of the first port and the off-position of sealing cone and the laminating of the first port; Preload piece, preload piece is connected between valve body and valve body, and to the power that the applying of valve body is moved to off-position. By this aviation piston engine start valve can tight seal, protection aviation piston engine operating safety.
Description
Technical field
The present invention relates to aviation power apparatus field, specifically, it relates to a kind of aviation piston engine starts valve and has its aviation piston engine.
Background technology
Need external force when aviation piston engine rotates by static to drive. The effect of starting system is exactly supply external force to aviation piston engine, aviation piston engine is rotated by static, until aviation piston engine reaches regulation rotating speed normal operation. Piston 6A aircraft engine relies on compressed air starting, and its starting system is made up of air compressor, conduit, random gas cylinder, cold air starting sparger, starting valve and priming system etc. Aviation piston engine starts the important component part of valve as starting system, its design has been become the key of aviation piston engine design field, the working process starting valve is, when aviation piston engine starts, start valve to be opened, pressurized air enters combustion chamber of air cylinder, promotes piston motion; After aviation piston engine starts, start valve and it is closed, starting system and cylinder are separated, ensure the stopping property of cylinder. And prior art not yet has the starting valve that can be applicable to the aviation piston engine by compressed air starting very well.
Summary of the invention
It is desirable to provide a kind of aviation piston engine starts valve and has its aviation piston engine, to solve the problem not having in prior art can be applicable to well be started valve by the aviation piston engine of compressed air starting.
In order to realize above-mentioned purpose, according to an aspect of the present invention, provide a kind of aviation piston engine and start valve, this aviation piston engine starts valve and comprises: valve body, valve body has container cavity, the first end of valve body has the first port being connected with container cavity, and first end mouthpiece has conical surface, and valve body is provided with the air inlet port radially running through valve body and be connected with container cavity; Valve body, valve body is arranged in container cavity removablely, the first end of valve body has the sealing cone that the conical surface with the first port coordinates, and valve body has the open position of sealing cone and the disengaging of the first port and the off-position of sealing cone and the laminating of the first port; Preload piece, preload piece is connected between valve body and valve body, and to the power that the applying of valve body is moved to off-position.
Further, valve body comprises: valve lid, and valve lid has cavity; Valve main body, valve main body has the through hole that the length direction along valve main body runs through valve main body, valve lid is set in valve main body and outward and is fixedly connected with the 2nd end of valve main body, the cavity of valve lid and the through hole of valve main body form container cavity, and the opening place of the first end of valve main body is the first port.
Further, air inlet port is arranged in valve main body, aviation piston engine starts valve and also comprises pilot manifold adapter head, pilot manifold adapter head comprises open holes and the venting cavity of annular, open holes runs through pilot manifold adapter head vertically, valve body is through open holes and is arranged on pilot manifold adapter head, and air inlet port is connected with venting cavity.
Further, valve body comprises: guide section, and guide section is positioned at container cavity, and the 2nd end of guide section is provided with the stopper protrusion of backstop preload piece; Crossing gas section, the 2nd end crossing gas section is connected with the first end of guide section, and the cross section crossing gas section and guide section junction shrinks gradually, crosses the space having supplied gas between the perisporium of gas section and the inwall of valve body and passing through, and air inlet port is connected with space; Seal section, seal section was connected to the first end of gas section, and the cross section of seal section is along expanding gradually away from the direction crossing gas section and forms sealing cone.
Further, valve body also comprised gas guide path, crosses gas guide path and was arranged on gas section, and extended along the length direction crossing gas section, crosses gas guide path and inwardly caves in by the perisporium crossing gas section.
Further, the cross section shape crossing gas guide path is circular arc, and the quantity crossing gas guide path is multiple, and multiple gas guide path of crossing is arranged along the even interval of the circumferential direction crossing gas section.
Further, the stopper protrusion of guide section is stop nut, and stop nut is fixedly installed on the 2nd end of guide section and is locked by safety fuse.
Further, valve body has the guide protrusions coordinated with guide section, and guide protrusions is formed to container cavity internal projection by the interior perisporium of valve body.
Further, preload piece is preloading spring, and the first end of preloading spring is connected to one end of the close stopper protrusion of guide protrusions, and the 2nd end of preloading spring is connected in stopper protrusion, and when valve body is in the closed position, preloading spring is in compressed state.
According to a further aspect in the invention, provide a kind of aviation piston engine, comprise engine cylinder-body and aviation piston engine starting valve, aviation piston engine starts the aviation piston engine that valve is above-mentioned and starts valve, the first end of the valve body that aviation piston engine starts valve is provided with thread segment, and valve body is connected with engine cylinder-body by thread segment.
The technical scheme of application the present invention, aviation piston engine starts valve and comprises valve body, valve body and preload piece, valve body has container cavity, the first end of valve body has the first port being connected with container cavity, first end mouthpiece has conical surface, and valve body is provided with the air inlet port radially running through valve body and be connected with container cavity; Valve body is arranged in container cavity removablely, and the first end of valve body has the sealing cone that the conical surface with the first port coordinates, and valve body has the open position of sealing cone and the disengaging of the first port and the off-position of sealing cone and the laminating of the first port; Preload piece is connected between valve body and valve body, and to the power that the applying of valve body is moved to off-position. By preload piece, valve body is applied towards the power in container cavity, sealing cone and the tight-lipped sucking fit of first end of valve body can be made, and then ensure that aviation piston engine starts valve under closing condition, valve body is in the closed position, and aviation piston engine starts valve sealing tightly, No leakage.
Accompanying drawing explanation
The accompanying drawing of the part forming the present invention is used to provide a further understanding of the present invention, and the schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention. In the accompanying drawings:
The aviation piston engine that Fig. 1 shows embodiments of the invention starts the sectional view that valve is in closing condition;
Fig. 2 shows the A-A direction view that the aviation piston engine in Fig. 1 starts valve; And
The aviation piston engine that Fig. 3 shows embodiments of the invention starts the sectional view that valve is in the state of opening.
Description of reference numerals: 11, container cavity; 12, valve lid; 13, valve main body; 131, air inlet port; 20, valve body; 21, guide section; 22, gas section is crossed; 221, gas guide path is crossed; 23, seal section; 24, stop nut; 30, preload piece; 40, pilot manifold adapter head.
Embodiment
Hereinafter with reference to accompanying drawing and come the present invention is described in detail in conjunction with the embodiments. It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
As shown in Figures 1 to 3, according to embodiments of the invention, aviation piston engine starts valve and comprises valve body, valve body 20 and preload piece 30, valve body has container cavity 11, the first end of valve body has the first port being connected with container cavity 11, first end mouthpiece has conical surface, and valve body is provided with the air inlet port 131 radially running through valve body and be connected with container cavity 11; Valve body 20 is arranged in container cavity 11 removablely, the first end of valve body 20 has the sealing cone that the conical surface with the first port coordinates, and valve body 20 has the open position of sealing cone and the disengaging of the first port and the off-position of sealing cone and the laminating of the first port; Preload piece 30 is connected between valve body 20 and valve body, and valve body 20 applies the power that moves to off-position. By preload piece 30, valve body 20 is applied towards the power in container cavity 11, sealing cone and the tight-lipped sucking fit of first end of valve body 20 can be made, and then ensure that aviation piston engine starts valve under closing condition, valve body 20 is in the closed position, and aviation piston engine starts valve sealing tightly, No leakage.
In the present embodiment, in order to convenient processing, reducing tooling cost, ensure that valve body can meet user demand simultaneously, have good stopping property, valve body comprises valve lid 12 and valve main body 13. Valve lid 12 has cavity.
Valve main body 13 has the through hole that the length direction along valve main body 13 runs through valve main body 13, valve lid 12 is set in valve main body 13 and outward and is fixedly connected with the 2nd end of valve main body 13, the cavity of valve lid 12 and the through hole of valve main body 13 form container cavity 11, and the opening place of the first end of valve main body 13 is the first port.
Can be fixedly connected with by modes such as welding, be threaded between valve lid 12 and the 2nd end of valve main body 13, only need to ensure both stable connections and junction stopping property well. In the present embodiment, adopt between valve lid 12 and the 2nd end of valve main body 13 and it is threaded, so both can ensure stopping property, can conveniently dismantle and install again, it is possible to save tooling cost and installation cost.
In the present embodiment, air inlet port 131 is arranged in valve main body 13, aviation piston engine starts valve and also comprises pilot manifold adapter 40, pilot manifold adapter 40 comprises open holes and the venting cavity of annular, open holes runs through pilot manifold adapter 40 vertically, valve body is through open holes and is arranged in pilot manifold adapter 40, and air inlet port 131 is connected with venting cavity. Can be connected with the inlet system of aviation piston engine by pilot manifold adapter 40, and start air feed in valve to aviation piston engine.
Preferably, in order to ensure the stopping property of the junction of valve body and pilot manifold adapter 40, between the upper surface of valve body and pilot manifold adapter 40 and lower surface, it is provided with gasket seal. Specifically, it is provided with a gasket seal between the upper surface of the lower surface of valve lid 12 and pilot manifold adapter 40, the periphery of valve main body 13 has an outer flange, is provided with a gasket seal between the lower surface of the upper surface of this outer flange and pilot manifold adapter 40. Mutually push against between such pilot manifold adapter 40, valve lid 12 and the outer flange of valve main body 13, ensure that valve body and the connection sealing of pilot manifold adapter 40.
In conjunction with see Fig. 1 and 3, valve body 20 comprises guide section 21, crosses gas section 22 and seal section 23.
Wherein, guide section 21 is positioned at container cavity 11, and the 2nd end of guide section 21 is provided with the stopper protrusion of backstop preload piece 30. Guide section 21, for ensureing the motion track of valve body 20, prevents valve body 20 in moving process from shaking or radial-play, to ensure that aviation piston engine starts valve and supplies gas steadily, reduces the noise that shake produces.
In the present embodiment, the stopper protrusion of guide section 21 is stop nut 24, and stop nut 24 is fixedly installed on the 2nd end of guide section 21 and is locked by safety fuse. In other embodiments, stopper protrusion can be other structure, such as, and the flange being fixedly installed on outside guide section. The guide protrusions that valve body has with guide section 21 coordinates, guide protrusions is formed to container cavity 11 internal projection by the interior perisporium of valve body.
The 2nd end crossing gas section 22 is connected with the first end of guide section 21, and the cross section crossing the valve body 20 of gas section 22 with guide section 21 junction shrinks gradually, crossing the space having supplied gas between the perisporium of gas section 22 and the inwall of valve body and passing through, air inlet port 131 is connected with space. Take over 40 gas entered from pilot manifold to pass through in the gap crossed between gas section 22 and valve body inwall, and flow to the first port.
Seal section 23 was connected to the first end of gas section 22, and the cross section of seal section 23 is along expanding gradually away from the direction crossing gas section 22 and forms sealing cone. Can ensureing that aviation piston engine starts valve when closing condition by the sealing cone of seal section 23, gas can not pass back in valve body from the first port, ensures the security of aviation piston engine work.
The side face of seal section 23 is provided with annular recesses in order to setting tool, so that and the valve body grinding-in conical surface.
In conjunction with see Fig. 2, it may be preferred that valve body 20 also comprised gas guide path 221, cross gas guide path 221 and it was arranged on gas section 22, and extend along the length direction crossing gas section 22, cross gas guide path 221 and inwardly cave in by the perisporium crossing gas section 22. Flow to by crossing gas guide path 221 guiding gas, ensure gas flowing steadily, so ensure aviation piston engine start valve in for the cylinder body of aviation piston engine during air feed can air-flow steady, it is final that to ensure that aviation piston engine starts steady.
Preferably, the cross section shape crossing gas guide path 221 is circular arc, and the quantity crossing gas guide path 221 is multiple, and multiple gas guide path 221 of crossing is arranged along the even interval of the circumferential direction crossing gas section 22. In the present embodiment, the quantity crossing gas guide path 221 is 3.
In the present embodiment, preload piece 30 is preloading spring, the first end of preloading spring is fixedly connected on one end of close stopper protrusion of guide protrusions, and the 2nd end of preloading spring is fixedly connected in stopper protrusion, and when valve body 20 is in the closed position, preloading spring is in compressed state. In other embodiments, preload piece 30 can be other structure, such as, and elastic sleeve. In other embodiments, the first end of preloading spring can be pushed against on one end of close stopper protrusion of guide protrusions, and the 2nd end of preloading spring is pushed against in stopper protrusion.
According to a further aspect in the invention, aviation piston engine comprises engine cylinder-body and starts valve, the aviation piston engine that this starting valve is above-mentioned starts valve, the first end of the valve body that aviation piston engine starts valve is provided with thread segment, and valve body is connected with engine cylinder-body by thread segment.
In the present embodiment, this aviation piston engine starts valve and is applied on aviation piston engine, when aviation piston engine needs to start, supplied gas in valve body by pilot manifold adapter 40, pressure in valve body increases gradually along with the increase of gas, the power on valve body 20 is acted on and when gas that lower surface upward pressure sum that in engine cylinder-body, gas acts on seal section is less than in valve body acts on the pressure on seal section 23 when preload piece 30, valve body 20 is pushed and moves outside valve body, seal face and the first port depart from, gas is flowed out by space between the two, and enter in the cylinder body of aviation piston engine. after aviation piston engine starts, by the power of the pressure in engine cylinder-body and preload piece 30, seal section 23 is closely fitted on the first port, aviation piston engine starts valve sealing, avoids gas leakage, ensure that operating safety.
From above description, can find out, the above embodiments of the present invention achieve following technique effect: be applied on aviation piston engine by this aviation piston engine is started valve, make in the starting process of aviation piston engine, pressurized air can enter rapidly and safely in the cylinder of aviation piston engine, enable aviation piston engine normal starting, and when aviation piston engine normal operation, starting system and cylinder are separated, guarantee that aviation piston engine can normal operation, avoid gas leakage, improve stopping property, ensure cylinder pressurization ratio.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. an aviation piston engine starts valve, it is characterised in that, comprising:
Valve body, described valve body has container cavity (11), the first port that the first end of described valve body has with described container cavity (11) is connected, described first end mouthpiece has conical surface, and described valve body is provided with the air inlet port (131) radially running through described valve body and be connected with described container cavity (11);
Valve body (20), described valve body (20) is arranged in described container cavity (11) removablely, the first end of described valve body (20) has the sealing cone that the conical surface with described first port coordinates, and described valve body (20) has the open position of described sealing cone and described first port disengaging and the off-position of described sealing cone and described first port laminating;
Preload piece (30), described preload piece (30) is connected between described valve body (20) and described valve body, and to the power that the applying of described valve body (20) is moved to described off-position;
Described valve body (20) comprising:
Guide section (21), described guide section (21) is positioned at described container cavity (11), and the 2nd end of described guide section (21) is provided with the stopper protrusion of preload piece described in backstop (30);
Cross gas section (22), described the 2nd end crossing gas section (22) is connected with the first end of described guide section (21), and the described cross section crossing gas section (22) and described guide section (21) junction shrinks gradually, having the space that supplied gas is passed through between the perisporium of described gas section (22) excessively and the inwall of described valve body, described air inlet port (131) is connected with described space;
Seal section (23), described seal section (23) is connected to the described first end crossing gas section (22), and the cross section of described seal section (23) is along expanding gradually away from the described direction crossing gas section (22) and forms described sealing cone.
2. aviation piston engine according to claim 1 starts valve, it is characterised in that, described valve body comprises:
Valve lid (12), described valve lid (12) has cavity;
Valve main body (13), described valve main body (13) is provided with the through hole that the length direction along described valve main body (13) runs through described valve main body (13), described valve lid (12) is set in two end of described valve main body (13) outward and with described valve main body (13) and is fixedly connected with, the cavity of described valve lid (12) and the through hole of described valve main body (13) form described container cavity (11), and the opening place of the first end of described valve main body (13) is described first port.
3. aviation piston engine according to claim 2 starts valve, it is characterized in that, described air inlet port (131) is arranged on described valve main body (13), described aviation piston engine starts valve and also comprises pilot manifold adapter head (40), described pilot manifold adapter head (40) comprises open holes and the venting cavity of annular, described open holes runs through described pilot manifold adapter head (40) vertically, described valve body is through described open holes and is arranged on described pilot manifold adapter head (40), described air inlet port (131) is connected with described venting cavity.
4. aviation piston engine according to claim 1 starts valve, it is characterized in that, described valve body (20) also comprised gas guide path (221), described gas guide path (221) excessively is arranged on described gas section (22) excessively, and extend along the described length direction crossing gas section (22), described gas guide path (221) of crossing inwardly caves in by the described perisporium crossing gas section (22).
5. aviation piston engine according to claim 4 starts valve, it is characterized in that, the described cross section shape crossing gas guide path (221) is circular arc, and the described quantity crossing gas guide path (221) is multiple, described multiple gas guide path (221) of crossing is arranged along the described even interval of circumferential direction crossing gas section (22).
6. aviation piston engine according to claim 1 starts valve, it is characterized in that, the described stopper protrusion of described guide section (21) is stop nut (24), and described stop nut (24) is fixedly installed on the 2nd end of described guide section (21) and is locked by safety fuse.
7. aviation piston engine according to claim 1 starts valve, it is characterized in that, the guide protrusions that described valve body has with described guide section (21) coordinates, described guide protrusions is formed to described container cavity (11) internal projection by the interior perisporium of described valve body.
8. aviation piston engine according to claim 7 starts valve, it is characterized in that, described preload piece (30) is preloading spring, the first end of described preloading spring is connected to one end of the close described stopper protrusion of described guide protrusions, 2nd end of described preloading spring is connected in described stopper protrusion, and when described valve body (20) is in the closed position, described preloading spring is in compressed state.
9. an aviation piston engine, it is characterized in that, comprise engine cylinder-body and aviation piston engine starting valve, it is that the aviation piston engine according to any one of claim 1 to 8 starts valve that described aviation piston engine starts valve, the first end of the valve body that described aviation piston engine starts valve is provided with thread segment, and described valve body is connected with described engine cylinder-body by described thread segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275717.7A CN104047734B (en) | 2014-06-19 | 2014-06-19 | Aviation piston engine starts valve and has its aviation piston engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275717.7A CN104047734B (en) | 2014-06-19 | 2014-06-19 | Aviation piston engine starts valve and has its aviation piston engine |
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| Publication Number | Publication Date |
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| CN104047734A CN104047734A (en) | 2014-09-17 |
| CN104047734B true CN104047734B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410275717.7A Active CN104047734B (en) | 2014-06-19 | 2014-06-19 | Aviation piston engine starts valve and has its aviation piston engine |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089441B (en) * | 2016-06-07 | 2017-12-26 | 中国南方航空工业(集团)有限公司 | Engine bleeder valve control device and engine control system |
| CN111058949B (en) * | 2020-01-06 | 2021-01-15 | 南京航空航天大学 | Pressure-controlled oil drainage valve for starting of turboshaft engine and use method thereof |
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| DE4338115A1 (en) * | 1993-11-08 | 1995-05-11 | Daimler Benz Ag | Engine-braking device for an internal combustion engine |
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| CN102954261A (en) * | 2012-11-30 | 2013-03-06 | 常州天旭机电制造有限公司 | Voltage regulation valve |
| CN202834241U (en) * | 2012-08-31 | 2013-03-27 | 中国石油天然气股份有限公司 | Power-assisted needle type back pressure valve |
| CN103122880A (en) * | 2011-11-18 | 2013-05-29 | 广西柳工机械股份有限公司 | Adjustable pilot reducing valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8516994B2 (en) * | 2010-05-11 | 2013-08-27 | Turn And Bank Holdings, Inc. | Fuel injection system |
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2014
- 2014-06-19 CN CN201410275717.7A patent/CN104047734B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5052433A (en) * | 1988-02-09 | 1991-10-01 | Legris Sa | Starter connection for progressive pressurizing of pneumatic installations |
| DE4338115A1 (en) * | 1993-11-08 | 1995-05-11 | Daimler Benz Ag | Engine-braking device for an internal combustion engine |
| CN201875224U (en) * | 2010-11-23 | 2011-06-22 | 陈文才 | Safety valve |
| CN103122880A (en) * | 2011-11-18 | 2013-05-29 | 广西柳工机械股份有限公司 | Adjustable pilot reducing valve |
| CN202834241U (en) * | 2012-08-31 | 2013-03-27 | 中国石油天然气股份有限公司 | Power-assisted needle type back pressure valve |
| CN102954261A (en) * | 2012-11-30 | 2013-03-06 | 常州天旭机电制造有限公司 | Voltage regulation valve |
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| CN104047734A (en) | 2014-09-17 |
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Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |