CN207278968U - Small-size turbojet engine fuel control system flow control valve - Google Patents
Small-size turbojet engine fuel control system flow control valve Download PDFInfo
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- CN207278968U CN207278968U CN201721016685.4U CN201721016685U CN207278968U CN 207278968 U CN207278968 U CN 207278968U CN 201721016685 U CN201721016685 U CN 201721016685U CN 207278968 U CN207278968 U CN 207278968U
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- spool
- small
- control system
- engine fuel
- turbojet engine
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Abstract
The utility model discloses a kind of small-size turbojet engine fuel control system flow control valve, it is made of upper shell, resetting spring, valve pocket, lower housing shell, return check valve, spool, spring supporting and damper；Control port, oil inlet, oil return opening are offered on the lower housing shell, return check valve, valve pocket are integrated on lower housing shell；Damper, spool, spring supporting and resetting spring are installed on upper shell；Spool cooperatively forms variable restrictor window by the valve pocket of spring supporting and lower housing shell.The utility model is applied in fuel control system, has the advantages that compact-sized, light-weight, contamination resistance is strong, reliability is high.
Description
Technical field
It the utility model is related to a kind of flow control valve, and in particular to a kind of small-size turbojet engine fuel control system is used
Flow control valve.
Background technology
Fuel control system generally uses " constant displacement pump+twin-jet nozzle servo valve " control system uninterrupted, Dual Injector Baffle
Valve has the shortcomings that complicated, contamination resistance is poor, low pressure flow regulation performance is poor, it is impossible to meets that fuel control system height can
By the growth requirement of property, long endurance.
Utility model content
The purpose of this utility model is to provide the small-sized whirlpool spray of a kind of simple in structure, high reliability, high contamination resistance
Engine fuel control flow control valve.
The technical solution for realizing the utility model aim is：A kind of small-size turbojet engine fuel control system flow tune
Valve is saved, is made of upper shell, resetting spring, valve pocket, lower housing shell, return check valve, spool, spring supporting and damper；
The damper is installed on upper shell, the pressure of control port by entering the big end of spool after damper,
In the endoporus of spool big end insertion upper shell, in small end insertion valve pocket endoporus, spool and valve pocket composition variable restrictor window will be into
Hydraulic fluid port is separated with return check valve ante-chamber, and return check valve ante-chamber fluid is connected by return check valve with drainback passage, spring
Support is nested on the outside of spool big end pilot hole in the endoporus of upper shell, and resetting spring is socketed in outside spring supporting
Side, one end are fixed with lower housing shell；Return check valve be installed on lower housing shell inside, be provided with lower housing shell oil inlet, oil return opening and
Control port, oil inlet, oil return opening are connected with engine fuel mouth.
Compared with prior art, the remarkable advantage of the utility model is：The utility model is designed reasonably, it is simple in structure tight
Gather, is light-weight；Damper is set between control port and spool big end, and damper ensure that spool is reliable and stable by filtering
Work；Spool, valve pocket use the conical design of wide arc gap, not only ensure that flow area, also improve the antipollution energy of valve
Power.
The utility model is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model small-size turbojet engine fuel control system fuel regulator valve.
Fig. 2 is the structure chart of damper in the utility model.
Embodiment
With reference to Fig. 1, a kind of small-size turbojet engine fuel control system flow control valve, by upper shell 1, resetting spring
2nd, valve pocket 3, lower housing shell 4, return check valve 5, spool 6, spring supporting 7 and damper 8 form；Spool 6 includes being connected big
End and small end, big end and small end are coaxial；
The damper 8 is installed on upper shell 1, and the pressure of control port after damper 8 by entering the big of spool 6
End, 6 big end of spool are inserted into the endoporus of upper shell 1, and in small end insertion 3 endoporus of valve pocket, spool 6 forms variable restrictor with valve pocket 3
Window separates oil inlet and return check valve ante-chamber, and return check valve ante-chamber fluid passes through return check valve 5 and drainback passage
Connection, spring supporting 7 are installed in the endoporus of upper shell 1, and are nested on the outside of spool big end pilot hole, and resetting spring 2 is socketed
In the outside of spring supporting 7, one end is fixed with lower housing shell 4；Return check valve 5 is installed on inside lower housing shell 4, is set on lower housing shell 4
There are oil inlet, oil return opening and control port, oil inlet, oil return opening are connected with engine fuel mouth.
Further, damper is made of damping block 9, filter 11 and thin wall tubule 10, and the filter 11 is installed on
On damping block 9, thin wall tubule 10 is uniformly curled up on damping block 9, and 10 one end of thin wall tubule is inserted into inside filter 11, the other end
Drawn from damping block 9.
Welded seal is carried out using high-temperature soldering method and damping block at 10 import and export of thin wall tubule；Thin wall tubule curls up
In along the circumferential direction uniformly thin wall tubules are fixed in 4~5 points of weldering on damping block.
The control port hydraulic coupling by acting on spool big end after damper, the power overcome resetting spring power, into
The hydraulic coupling of hydraulic fluid port spool small end, hydraulic power realize the control to spool displacement.
Further, the spool small end includes one section of cylinder and one section of round platform, round platform are relatively large in diameter one end and cylinder
Body connects, and the smaller side of diameter is stretched into valve pocket；Round platform periphery is evenly arranged with more than two grooves；Variable restrictor window by
Groove and valve pocket composition on spool small end, are moved back and forth by spool and change groove and valve pocket relative position, can so as to change
Variable throttling window size.
Further, number of recesses is 2,3 or 4.
Further, depth of groove reduces as round platform diameter increases.Alternatively, depth of groove increases with round platform diameter
And increase.
Further, the damper 8 is installed on upper shell 1 by screw.
The utility model is described in detail with reference to specific embodiment.
Embodiment
With reference to Fig. 1, a kind of small-size turbojet engine fuel control system flow control valve, by upper shell 1, resetting spring
2nd, valve pocket 3, lower housing shell 4, return check valve 5, spool 6, spring supporting 7 and damper 8 form；The damper 8 is installed on upper
On housing 1, the pressure of control port by entering the big end of spool 6 after damper 8,6 big end of spool insertion upper shell 1 it is interior
Kong Zhong, small end are inserted into 3 endoporus of valve pocket, and spool constitutes variable restrictor window by oil inlet and return check valve ante-chamber with valve pocket
Separate, return check valve ante-chamber fluid is connected by return check valve 5 with drainback passage, and spring supporting 7 is installed on upper shell 1
In endoporus, and it is nested on the outside of spool big end pilot hole, resetting spring 2 is socketed in the outside of spring supporting 7, one end and lower housing shell 4
It is fixed；Return check valve 5 is installed on inside lower housing shell 4, is opened up on lower housing shell into, oil return opening and control port, oil inlet, oil return
Mouth is connected with engine fuel mouth.
The spool is cylindrical to use pyramidal structure, and special-shaped through-flow groove is uniformly opened up on spool, according to flow system flow
Need, adjust the depth and number of special-shaped slot, 2,3 or 4 can be opened up.The flow area of flow regulating orifices by spool cone
The displacement of special-shaped slot and spool determines on degree, spool.
With reference to Fig. 2, damper 8 is made of damping block 9, thin wall tubule 10, filter 11.Filter 11 is installed on damping block
On 9, thin wall tubule 10 uniformly curls up and on damping block 9, inside 10 one end of thin wall tubule insertion filter 11, the other end is from damping
Drawn in block 9.Wherein, filter 11 is welded with damping block 9, sealed using high-temperature soldering method；Thin wall tubule 10 is uniform
Coiling with damping block 9, along the circumferential direction uniformly 5 points of weldering is fixed, at import and export using high-temperature soldering method and damping block 9 into
Row welded seal.It is high-temperature soldering point at A, B, C, D, E in Fig. 2.Control fluid is entered by filter 11, by being flowed in damping block 9
Go out.
Utility model works principle：When system control pressure increases, the oil liquid pressure that spool big end is subject to increases, should
Power is by overcoming frictional force, spring force, promoting spool to move, and flow area reduces between spool and valve pocket, and return flow is reduced；
When control pressure is reduced, flow area increases between spool valve pocket, return flow increase.
Claims (8)
- A kind of 1. small-size turbojet engine fuel control system flow control valve, it is characterised in that：By upper shell (1), reset Spring (2), valve pocket (3), lower housing shell (4), return check valve (5), spool (6), spring supporting (7) and damper (8) composition；The damper (8) is installed on upper shell (1), and the pressure of control port after damper (8) by entering spool (6) Big end, spool (6) big end insertion upper shell (1) endoporus in, small end insertion valve pocket (3) endoporus in, spool (6) and valve pocket (3) composition variable restrictor window separates oil inlet and return check valve ante-chamber, and return check valve ante-chamber fluid passes through oil return list Connected to valve (5) with drainback passage, spring supporting (7) is installed in the endoporus of upper shell (1), and is nested in spool big end guiding On the outside of hole, resetting spring (2) is socketed on the outside of spring supporting (7), and one end is fixed with lower housing shell (4)；Return check valve (5) is installed It is internal in lower housing shell (4), oil inlet, oil return opening and control port are provided with lower housing shell (4), oil inlet, oil return opening are with starting Machine fuel port is connected.
- 2. small-size turbojet engine fuel control system flow control valve according to claim 1, it is characterised in that：Resistance Buddhist nun's device (8) is made of damping block (9), filter (11) and thin wall tubule (10), and the filter (11) is installed on damping block (9) On, thin wall tubule (10) is uniformly curled up on damping block (9), and thin wall tubule (10) one end insertion filter (11) is internal, another Drawn from damping block (9) at end.
- 3. small-size turbojet engine fuel control system flow control valve according to claim 2, it is characterised in that：It is thin Wall tubule is curled up in along the circumferential direction uniformly thin wall tubules are fixed in 4~5 points of weldering on damping block.
- 4. small-size turbojet engine fuel control system flow control valve according to claim 1, it is characterised in that：Institute State spool small end to be relatively large in diameter one end including one section of cylinder and one section of round platform, round platform and be connected with cylinder, the smaller one end of diameter Stretch into valve pocket (3)；Round platform periphery is evenly arranged with more than two grooves；Variable restrictor window is by the groove on spool small end Formed with valve pocket, moved back and forth by spool (6) and change groove and valve pocket (3) relative position, so as to change variable restrictor window Size.
- 5. small-size turbojet engine fuel control system flow control valve according to claim 4, it is characterised in that：It is recessed Slot number amount is 2,3 or 4.
- 6. small-size turbojet engine fuel control system flow control valve according to claim 4 or 5, its feature exist In：Depth of groove reduces as round platform diameter increases.
- 7. small-size turbojet engine fuel control system flow control valve according to claim 4 or 5, its feature exist In：Depth of groove increases as round platform diameter increases.
- 8. small-size turbojet engine fuel control system flow control valve according to claim 1, it is characterised in that：Institute Damper (8) is stated to be installed on upper shell (1) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721016685.4U CN207278968U (en) | 2017-08-14 | 2017-08-14 | Small-size turbojet engine fuel control system flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721016685.4U CN207278968U (en) | 2017-08-14 | 2017-08-14 | Small-size turbojet engine fuel control system flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207278968U true CN207278968U (en) | 2018-04-27 |
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ID=61983278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721016685.4U Active CN207278968U (en) | 2017-08-14 | 2017-08-14 | Small-size turbojet engine fuel control system flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207278968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339479A (en) * | 2017-08-14 | 2017-11-10 | 南京晨光集团有限责任公司 | Small-size turbojet engine fuel control system flow control valve |
-
2017
- 2017-08-14 CN CN201721016685.4U patent/CN207278968U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339479A (en) * | 2017-08-14 | 2017-11-10 | 南京晨光集团有限责任公司 | Small-size turbojet engine fuel control system flow control valve |
| CN107339479B (en) * | 2017-08-14 | 2023-10-13 | 江苏金陵智造研究院有限公司 | Flow regulating valve for fuel control system of small turbojet engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180502 Address after: 210006 Qinhuai District, Nanjing City, Jiangsu Province, No. 1 Co-patentee after: Nanjing Chenguang Group Co., Ltd. Patentee after: Jiangsu Jinling Intellectual Building Research Institute Co., Ltd. Address before: 210006 Qinhuai District, Nanjing City, Jiangsu province No.1 School Road Patentee before: Nanjing Chenguang Group Co., Ltd. |
|
| TR01 | Transfer of patent right |