CN206987968U - A kind of aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit valve - Google Patents
A kind of aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit valve Download PDFInfo
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- CN206987968U CN206987968U CN201720615976.9U CN201720615976U CN206987968U CN 206987968 U CN206987968 U CN 206987968U CN 201720615976 U CN201720615976 U CN 201720615976U CN 206987968 U CN206987968 U CN 206987968U
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Abstract
The utility model discloses a kind of aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit valve, including case, one-level valve system and two level valve system；The case includes external standard snap joint, shell and auxiliary oil circuit oil pipe, and one-level valve system and two level valve system are installed in the inside of case；External standard snap joint includes standard size extraneous quick termination, cylindrical shell and inner chamber；Shell includes cylinder secondary shell, step inner cavity and auxiliary oil circuit hole, and step inner cavity connects located at the inside of the secondary shell of cylinder, auxiliary oil circuit hole through one end of the secondary shell of cylinder with step inner cavity.The utility model is all associated with the scope of oil pressure using the size of every grade of valve, and metastable fuel delivery can be also controlled when oil pressure is excessive, not fuel feeding when oil pressure is too small, so as to ensure that the fuel oil that nozzle sprays is constant；Using using pure mechanic structure, security reliability and maintainability are greatly increased；Controlled simultaneously using two-stage valve, ensure the accuracy of fuel delivery.
Description
Technical field
It the utility model is related to Aero-Space engine fuel injection system technical field, specifically a kind of aero-engine
Fuel nozzle pre-combustion grade auxiliary oil circuit valve.
Background technology
Aero-engine is described as " heart " of aircraft, and combustion chamber is engine " heart ", its same compressor, turbine
Three big core components of aeropropulsion system are formed together.Combustion chamber pair will be by inlet duct, burner inner liner, housing, nozzle and point
The basic building blocks such as firearm form.Fuel nozzle is one of most secondary part wanted in combustion chamber, and its function is by fuel-oil atmozation, is accelerated mixed
Close gas to be formed, ensure stable burning and improve efficiency of combustion.But it is to ensure that the pressure and flow of the fuel oil for reaching fuel nozzle
Relative constancy, it is necessary to which the valve of advanced configuration ensures.Guarantee engine and gas-turbine combustion chamber, fuel-oil atmozation quality,
Liquid mist evaporation, movement locus and fuel concentration distribution have significant impact to combustion chamber property indices.Atomization quality is poor, concentration
Skewness, the inappropriate grade of spray cone angle is also by the life-span for directly affecting combustion chamber and turbine and the discharge of pollutant, especially
It is that ground gas turbine nozzle atomization quality is very big on pollutant emission influence.Show for this reason, it may be necessary to which R ＆ D design is a kind of new
The valve for changing fuel nozzle oil supply system of generationization high-precision control, can to complete the high accuracy of high-precision fuel nozzle and height
By property.
Utility model content
The purpose of this utility model is to provide a kind of aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit valve, with solution
The problem of being proposed in certainly above-mentioned background technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit valve, including case, one-level valve system and two level
Valve system；The case includes external standard snap joint, shell and auxiliary oil circuit oil pipe, one-level valve system and two level valve
System is installed in the inside of case；External standard snap joint include the extraneous quick termination of standard size, cylindrical shell and
Inner chamber；Shell includes cylinder secondary shell, step inner cavity and auxiliary oil circuit hole, and step inner cavity is located at the inside of the secondary shell of cylinder,
Auxiliary oil circuit hole connects through one end of the secondary shell of cylinder with step inner cavity；The one-level valve system is included into oil screen pad
Piece, metal wire knitted enter oil screen, oil-feed end cap, one-level valve body, oil sealing, one-level valve plug, one-level bourdon tube, spring
Adjusting pad, cylinder body base, collar pad and valve body sealing ring, one-level valve body include body, No.1 oil suction chamber, smooth close
Seal bull nose, body chamber and seal groove；The two level valve system includes two level valve plug, valve fork clip circle, valve beyond the Great Wall
End cap, valve body, two-level spring, valve cylinder and valve bottom.
As further program of the utility model：The extraneous quick termination of the standard size is arranged at cylindrical shell
At tip position, inner chamber is located at the inside of cylindrical shell.
As further program of the utility model：The two level valve plug include termination, shelves groove, bar portion, go out oil groove and
Baffle ring, valve cylinder include valve body, No. two oil suction chambers, two-stage oil feeding hole and seal groove.
As further program of the utility model：The oil sealing and one-level valve plug form one, one-level by groove
Valve plug also includes inlet hole and inner chamber.
Compared with prior art, the beneficial effects of the utility model are：
1st, using there is two-stage valve control structure in same housing；
2nd, it is all associated with the scope of oil pressure using the size of every grade of valve, it can also be controlled when oil pressure is excessive metastable
Fuel delivery, not fuel feeding when oil pressure is too small, so as to ensure that the fuel oil that nozzle sprays is constant；
3rd, using using pure mechanic structure, security reliability and maintainability are greatly increased；
4th, controlled simultaneously using two-stage valve, ensure the accuracy of fuel delivery.
Brief description of the drawings
Fig. 1 is the principle schematic diagram of the present invention；
Fig. 2 is the structural representation of case in the present invention；
Fig. 3 is the principle schematic diagram of external standard snap joint in the present invention；
Fig. 4 is the principle schematic diagram of shell in the present invention；
Fig. 5 is the principle schematic diagram of one-level valve system in the present invention；
Fig. 6 is the principle schematic diagram of oil-feed end cap in the present invention；
Fig. 7 is the principle schematic diagram that oily component is considered in the present invention；
Fig. 8 is the principle schematic diagram of one-level valve plug and Oil sealing assembly in the present invention；
Fig. 9 is the principle schematic diagram of two level valve system in the present invention；
Figure 10 is the principle schematic diagram of valve body and valve cylinder sleeve in the present invention；
Figure 11 is the principle schematic diagram of two level valve plug in the present invention.
In figure：1- cases, 2- one-levels valve system, 3- two levels valve system, the external standard snap joints of 4-, 5- shells,
6- auxiliary oil circuits oil pipe, 7- enter oil screen pad, 8- metal wire knitteds enter oil screen, 9- end caps, 10- one-levels valve body, 11- oil
Envelope, 12- one-level valve plug, 13- one-levels bourdon tube, 14- springs adjusting pad, 15- cylinder bodies base, 16- collars pad, 17- valve shells
Body sealing ring, 18- two level valve plug, 19- valve fork clips circle, 20- valve fork clips circle, 21- valve end cap, 22- two level bullets beyond the Great Wall
Spring, 23- valve bodies, 24- valve cylinder, 25- object staffs cun extraneous quick termination, 26- cylindrical shells, 27- inner chambers, 28- cylinders
Shape pair shell, 29- step inner cavities, 30- auxiliary oil circuits hole, 31- bodies, 32- No.1s oil suction chamber, 33- smooth seals bull nose, 34-
Body chamber, 35- seal grooves, 36- grooves, 37- fuel feed holes, 38- inner chambers, 39- two-stage oil feedings hole, 40- No. bis- oil suction chambers, 41-
Seal groove, 42- terminations, 43- shelves grooves, 44- bar portions, 45- go out oil groove, 46- baffle rings.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to Fig. 1~11, in the utility model embodiment, a kind of aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit
Valve, including case 1, one-level valve system 2 and two level valve system 3；The case 1 includes external standard snap joint 4, outer
Shell 5 and auxiliary oil circuit oil pipe 6, one-level valve system 2 and two level valve system 3 are installed in the inside of case 1；External standard is quick
Joint 4 includes standard size extraneous quick termination 25, cylindrical shell 26 and inner chamber 27；Shell 5 include the secondary shell 28 of cylinder,
Step inner cavity 29 and auxiliary oil circuit hole 30, for step inner cavity 29 located at the inside of the secondary shell 28 of cylinder, auxiliary oil circuit hole 30 passes through cylinder
One end of shape pair shell 28 connects with step inner cavity 29；The one-level valve system 2 is included into oil screen pad 7, wire volume
Knit and adjusted into oil screen 8, oil-feed end cap 9, one-level valve body 10, oil sealing 11, one-level valve plug 12, one-level bourdon tube 13, spring
Whole pad 14, cylinder body base 15, collar pad 16 and valve body sealing ring 17, one-level valve body 10 includes body 31, No.1 is entered
Oil pocket 32, smooth seal bull nose 33, body chamber 34 and seal groove 35, oil sealing 11 and one-level valve plug 12 pass through 36 groups of groove
Integrally, one-level valve plug 12 also includes inlet hole 37 and inner chamber 38；The two level valve system 3 include two level valve plug 18,
Valve fork clip circle 19, valve end cap 20, valve body 21, two-level spring 22, valve cylinder 24 and valve bottom beyond the Great Wall, two level valve
Plug 18 includes termination 42, shelves groove 43, bar portion 44, goes out oil groove 45 and baffle ring 46, and valve cylinder 24 includes 23, No. two oil-feeds of valve body
Chamber 40, two-stage oil feeding hole 39 and seal groove 41.The extraneous quick termination 25 of the standard size is arranged at the end of cylindrical shell 26
Head opening position, inner chamber 27 are located at the inside of cylindrical shell 26.
The application method of aviation engine fuel nozzle pre-combustion grade auxiliary oil circuit valve in more than one technical schemes：Including
Following steps：
A, external standard snap joint 4 interlinks with fuel feed pump, and fuel oil enters from the inner chamber 27 of external standard snap joint 4
Enter, entering oil screen 8 by metal wire knitted reaches at one-level valve system 2；
B, under the pressure effect of oil, oil pressure forms pressure to oil sealing 11, compression one-level bourdon tube 13, makes one-level valve shell
Leave to form gap to reach interior by the inlet hole 37 of one-level valve plug 12 again by fuel oil, fuel oil between body 10 and oil sealing 11
Chamber 38；
C, the fuel oil gone out from the inner chamber 38 of one-level valve plug 12 continues to form pressure to two level valve plug 18, makes two-level spring
22, from fuel gallery is formed, fuel oil enters from the two-stage oil feeding hole 39 of valve cylinder 24 again, and the fuel oil of auxiliary oil circuit is fuel-displaced from auxiliary oil circuit
Go out to reach auxiliary oil circuit oil pipe 6 in hole 45；In the case where oil pressure persistently increases, continue to compress two-level spring 22, make two level valve
The lower annular groove 46 of plug 18 reaches the smallest end of valve cylinder 24 and forms gap so that fuel oil is by entering finally into auxiliary oil circuit oil pipe 7
Reach fuel nozzle and eject burning.
The present invention, which is used in same housing, two-stage valve control structure；Using model of the size of every grade of valve all with oil pressure
Enclose associated, metastable fuel delivery can be also controlled when oil pressure is excessive, not fuel feeding when oil pressure is too small, so as to ensure that nozzle sprays
Fuel oil it is constant；Using using pure mechanic structure, security reliability and maintainability are greatly increased；Using the same time control of two-stage valve
System, ensure the accuracy of fuel delivery.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (4)
1. a kind of aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit valve, it is characterised in that lived including case (1), one-level
Door system (2) and two level valve system (3)；The case (1) includes external standard snap joint (4), shell (5) and auxiliary oil circuit
Oil pipe (6), one-level valve system (2) and two level valve system (3) are installed in the inside of case (1)；The external fast quick access of standard
Head (4) includes the extraneous quick termination (25) of standard size, cylindrical shell (26) and inner chamber (27)；Shell (5) includes cylinder
Secondary shell (28), step inner cavity (29) and auxiliary oil circuit hole (30), step inner cavity (29) are located at the inside of the secondary shell (28) of cylinder,
Auxiliary oil circuit hole (30) connects through one end of the secondary shell (28) of cylinder with step inner cavity (29)；The one-level valve system (2)
Including entering oil screen pad (7), metal wire knitted enter oil screen (8), oil-feed end cap (9), one-level valve body (10), oil sealing
(11), one-level valve plug (12), one-level bourdon tube (13), spring adjusting pad (14), cylinder body base (15), collar pad (16) and work
Door shell body sealing ring (17), one-level valve body (10) include body (31), No.1 oil suction chamber (32), smooth seal bull nose
(33), body chamber (34) and seal groove (35)；The two level valve system (3) includes two level valve plug (18), valve fork clip
Enclose (19), valve end cap (20), valve body (21), two-level spring (22), valve cylinder (24) and valve bottom beyond the Great Wall.
A kind of 2. aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit valve according to claim 1, it is characterised in that
The extraneous quick termination (25) of the standard size is arranged at the tip position of cylindrical shell (26), and inner chamber (27) are located at cylinder
The inside of shape shell (26).
A kind of 3. aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit valve according to claim 1, it is characterised in that
The two level valve plug (18) includes termination (42), shelves groove (43), bar portion (44), goes out oil groove (45) and baffle ring (46), valve cylinder
(24) valve body (23), No. two oil suction chambers (40), two-stage oil feeding hole (39) and seal groove (41) are included.
A kind of 4. aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit valve according to claim 1, it is characterised in that
The oil sealing (11) and one-level valve plug (12) form one by groove (36), and one-level valve plug (12) also includes inlet hole
And inner chamber (38) (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720615976.9U CN206987968U (en) | 2017-05-28 | 2017-05-28 | A kind of aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720615976.9U CN206987968U (en) | 2017-05-28 | 2017-05-28 | A kind of aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206987968U true CN206987968U (en) | 2018-02-09 |
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ID=61390286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720615976.9U Active CN206987968U (en) | 2017-05-28 | 2017-05-28 | A kind of aero-engine fuel nozzle pre-combustion grade auxiliary oil circuit valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206987968U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953394A (en) * | 2019-10-14 | 2020-04-03 | 中国北方发动机研究所(天津) | Electromagnetic valve for nozzle of combustion chamber |
| CN112254169A (en) * | 2020-10-20 | 2021-01-22 | 中国航发沈阳发动机研究所 | Sealing structure of secondary oil way fuel nozzle valve |
| CN112432203A (en) * | 2020-10-20 | 2021-03-02 | 中国航发沈阳发动机研究所 | Double-oil-way nozzle test piece |
-
2017
- 2017-05-28 CN CN201720615976.9U patent/CN206987968U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953394A (en) * | 2019-10-14 | 2020-04-03 | 中国北方发动机研究所(天津) | Electromagnetic valve for nozzle of combustion chamber |
| CN110953394B (en) * | 2019-10-14 | 2022-07-29 | 中国北方发动机研究所(天津) | Electromagnetic valve for nozzle of combustion chamber |
| CN112254169A (en) * | 2020-10-20 | 2021-01-22 | 中国航发沈阳发动机研究所 | Sealing structure of secondary oil way fuel nozzle valve |
| CN112432203A (en) * | 2020-10-20 | 2021-03-02 | 中国航发沈阳发动机研究所 | Double-oil-way nozzle test piece |
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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: 20191028 Address after: 201100 No. 3998, South Lianhua Road, Minhang District, Shanghai Patentee after: China Hangfa commercial aviation engine limited liability company Address before: 710000, No. 6, Jing Wei Industrial Park, 1 middle section of Jing Gao Bei Road, Jinghe new town, Xi'an Economic Development Zone, Shaanxi, China Patentee before: Xi'an established Aviation Manufacturing Co., Ltd. |
|
| TR01 | Transfer of patent right |