CN206987967U - A kind of aero-engine fuel nozzle main combustion stage working connection valve - Google Patents
A kind of aero-engine fuel nozzle main combustion stage working connection valve Download PDFInfo
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- CN206987967U CN206987967U CN201720615440.7U CN201720615440U CN206987967U CN 206987967 U CN206987967 U CN 206987967U CN 201720615440 U CN201720615440 U CN 201720615440U CN 206987967 U CN206987967 U CN 206987967U
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Abstract
The utility model discloses a kind of aero-engine fuel nozzle main combustion stage working connection valve, including case, one-level valve system and two level valve system.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 goes out is constant；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
Aero-Space engine fuel injection system engineering test technical field is the utility model is related to, is specifically a kind of boat
Empty engine fuel nozzle main combustion stage working connection 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 is mainly by inlet duct, burner inner liner, housing, nozzle and point
The basic building blocks such as firearm form.Fuel nozzle is one of most important part 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 main combustion stage working connection 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 main combustion stage working connection valve, including case, one-level valve system and two level
Valve system；The case includes external standard snap joint, shell, auxiliary oil circuit oil pipe and working connection oil pipe, and external standard is fast
Quick coupling includes standard size extraneous quick termination, cylindrical shell and inner chamber；Shell is comprising in cylindrical main shell, ladder
Chamber, auxiliary oil circuit hole and working connection hole；Auxiliary oil circuit oil pipe and working connection oil pipe are pipeline；The one-level valve system includes oil-feed
Filter screen pad, 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 includes body, 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, two-level spring, valve body, valve cylinder, No.1 sealing ring, No. two sealing rings, valve cylinder sleeve, No. three sealing rings, No. four
Ring and valve bottom under sealing ring, No. five sealing rings, valve plug.
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 fuel feed hole and inner chamber.
As further program of the utility model：The two level valve plug includes termination, shelves groove, bar portion, annular, annular
Fuel feed hole, secondary bar portion, go out oil groove and lower annular groove.
As further program of the utility model：The valve cylinder includes body, oil suction chamber, smooth filleted corner, two level
Fuel feed hole, seal groove, auxiliary oil circuit oil outlet and neck.
As further program of the utility model：The valve cylinder sleeve includes oil outlet.
Compared with prior art, the beneficial effects of the utility model are：
First, it is simple and practical 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 relatively stable
Fuel delivery, not fuel feeding when oil pressure is too small, so as to ensure that the fuel oil that nozzle goes out is constant；
3rd, 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 principle schematic diagram of the case of the present invention；
Fig. 3 is the principle schematic diagram of the external standard snap joint of the present invention；
Fig. 4 is the principle schematic diagram of the shell of the present invention；
Fig. 5 is the principle schematic diagram of the one-level valve system of the present invention；
Fig. 6 is the principle schematic diagram of the oil-feed end cap of the present invention；
Fig. 7 is the principle schematic diagram of the oily component of worry of the present invention；
Fig. 8 is the one-level valve plug of the present invention and the principle schematic diagram of Oil sealing assembly；
Fig. 9 is the principle schematic diagram of the two level valve system of the present invention；
Figure 10 is the valve body of the present invention and the principle schematic diagram of valve cylinder sleeve；
Figure 11 is the principle schematic diagram of the valve cylinder of the present invention；
Figure 12 is the principle schematic diagram one of the two level valve plug of the present invention；
Figure 13 is the principle schematic diagram two of the two level valve plug of 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- working connections oil pipe, 8- enter oil screen pad, 9- metal wire knitteds enter oil screen, 10-, 11- one-level valve
Housing, 12- oil sealings, 13- one-level valve plug, 14- one-levels bourdon tube, 15- springs adjusting pad, 16- cylinder bodies base, 17- collars pad,
18- valve bodies sealing ring, 19- two level valve plug, 20- valve fork clips circle, 21- valve end cap, 22- two-level springs, 23- beyond the Great Wall
Valve body, 24- valve cylinder, 25- No.1s sealing ring, No. bis- sealing rings of 26-, 27- valve cylinder sleeve, 28- No. tri- sealing rings, 29-
Ring, 32- valve bottom, 33- cylindrical shells, 34- inner chambers, 35- under No. four sealing rings, No. five sealing rings of 30-, 31- valve plugs
Standard size extraneous quick termination, 36- cylinders main shell, 37- step inner cavities, 38- auxiliary oil circuits hole, 39- working connections hole, 40-
Body, 41- oil suction chambers, 42- smooth seals bull nose, 43- bodies chamber, 44- seal grooves, 45- grooves, 46- fuel feed holes, 47-
Inner chamber, 48- oil outlets, 49- bodies, 50- oil suction chambers, the smooth filleted corners of 51-, 52- two-stage oil feedings hole, 53- seal grooves, 54- pairs
Oil circuit oil outlet, 55- necks, 56- terminations, 57- shelves grooves, 58- bar portions, 59- annulars, 60- annulars fuel feed hole, 61- secondary bars portion,
62- goes out annular groove under oil groove, 63-.
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. 1~13, in the utility model embodiment, a kind of aero-engine fuel nozzle main combustion stage working connection
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, auxiliary oil circuit oil pipe 6 and working connection oil pipe 7, external standard snap joint 4 include standard size extraneous quick termination 35, cylinder
Shape shell 33 and inner chamber 34；Shell 5 includes cylindrical main shell 36, step inner cavity 37, auxiliary oil circuit hole 38 and working connection hole 39；It is secondary
Oil circuit oil pipe 6 and working connection oil pipe 7 are pipeline；The one-level valve system 2 is included into oil screen pad 8, metal wire knitted
Enter oil screen 9, oil-feed end cap 10, one-level valve body 11, oil sealing 12, one-level valve plug 13, one-level bourdon tube 14, spring adjustment
Pad 15, cylinder body base 16, collar pad 17 and valve body sealing ring 18；One-level valve body 11 include body 40, oil suction chamber 41,
Smooth seal bull nose 42, body chamber 43 and seal groove 44；Oil sealing 12 and one-level valve plug 13 form one by groove 45,
One-level valve plug 13 also includes fuel feed hole 46 and inner chamber 47；The two level valve system 3 includes two level valve plug 19, valve fork clip
Circle 20, valve beyond the Great Wall end cap 21, two-level spring 22, valve body 23, valve cylinder 24,25, No. two sealing rings 26 of No.1 sealing ring,
Ring 31 and valve bottom 32 under valve cylinder sleeve 27, three sealing ring 28, four sealing ring 29, No. five sealing rings 30, valve plugs；Two
Level valve plug 19 include termination 56, shelves groove 57, bar portion 58, annular 59, annular fuel feed hole 60, secondary bar portion 61, go out oil groove 62 and under
Annular groove 63；Valve cylinder 24 includes body 49, oil suction chamber 50, smooth filleted corner 51, two-stage oil feeding hole 52, seal groove 53, auxiliary oil circuit
Oil outlet 54 and neck 55；Valve cylinder sleeve 27 includes oil outlet 48.
Application method of the utility model in actual use comprises the following steps：
A, external standard snap joint 4 is connected with each other with fuel feed pump, and fuel oil enters from the inner chamber 34 of external standard snap joint 4
Enter, entering oil screen 9 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 12, compression one-level bourdon tube 14, makes one-level valve shell
Leave to form gap to reach interior by the inlet hole 46 of one-level valve plug 13 again by fuel oil, fuel oil between body 11 and oil sealing 12
Chamber 47；
C, the fuel oil gone out from the inner chamber 47 of one-level valve plug 13 continues to form pressure to two level valve plug 19, compresses two level bullet
Spring 22 forms fuel gallery, and fuel oil enters from the two-stage oil feeding hole 52 of valve cylinder 24 again, after annular fuel feed hole 60, auxiliary oil circuit
Fuel oil go out to reach auxiliary oil circuit oil pipe 6 from auxiliary oil circuit oil outlet 54；In the case where oil pressure persistently increases, continue to compress two level
Spring 22, the lower annular groove 63 of two level valve plug 19 is reached the smallest end of valve cylinder 24 and form gap so that fuel oil is by finally
Enter the arrival fuel nozzle of working connection oil pipe 7 and eject burning.
The present invention, which is used in same housing, two-stage valve control structure, simple and practical；Using the big of every grade of valve
It is small all associated with the scope of oil pressure, metastable fuel delivery can be also controlled when oil pressure is excessive, not fuel feeding when oil pressure is too small, from
And ensure that the fuel oil that nozzle goes out is constant；Using pure mechanic structure, security reliability and maintainability are greatly increased；Using two-stage
Valve controls simultaneously, ensures 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 (5)
1. a kind of aero-engine fuel nozzle main combustion stage working connection 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), auxiliary oil circuit
Oil pipe (6) and working connection oil pipe (7), external standard snap joint (4) include the extraneous quick termination (35) of standard size, cylinder
Shell (33) and inner chamber (34)；Shell (5) includes cylindrical main shell (36), step inner cavity (37), auxiliary oil circuit hole (38) and master
Oil circuit hole (39)；Auxiliary oil circuit oil pipe (6) and working connection oil pipe (7) are pipeline；The one-level valve system (2) is included into oily filter
Gauze pad piece (8), metal wire knitted are entered oil screen (9), oil-feed end cap (10), one-level valve body (11), oil sealing (12), one-level and lived
Men Sai (13), one-level bourdon tube (14), spring adjusting pad (15), cylinder body base (16), collar pad (17) and valve body sealing
Enclose (18)；One-level valve body (11) includes body (40), oil suction chamber (41), smooth seal bull nose (42), body chamber (43)
With seal groove (44)；The two level valve system (3) includes two level valve plug (19), valve fork clip circle (20), valve beyond the Great Wall
End cap (21), two-level spring (22), valve body (23), valve cylinder (24), No.1 sealing ring (25), No. two sealing rings (26),
Ring (31) and work under valve cylinder sleeve (27), No. three sealing rings (28), No. four sealing rings (29), No. five sealing rings (30), valve plugs
Door bottom (32).
A kind of 2. aero-engine fuel nozzle main combustion stage working connection valve according to claim 1, it is characterised in that
The oil sealing (12) and one-level valve plug (13) form one by groove (45), and one-level valve plug (13) also includes fuel feed hole
And inner chamber (47) (46).
A kind of 3. aero-engine fuel nozzle main combustion stage working connection valve according to claim 1, it is characterised in that
The two level valve plug (19) includes termination (56), shelves groove (57), bar portion (58), annular (59), annular fuel feed hole (60), secondary bar
Portion (61), go out oil groove (62) and lower annular groove (63).
A kind of 4. aero-engine fuel nozzle main combustion stage working connection valve according to claim 1, it is characterised in that
The valve cylinder (24) includes body (49), oil suction chamber (50), smooth filleted corner (51), two-stage oil feeding hole (52), seal groove
(53), auxiliary oil circuit oil outlet (54) and neck (55).
A kind of 5. aero-engine fuel nozzle main combustion stage working connection valve according to claim 1, it is characterised in that
The valve cylinder sleeve (27) includes oil outlet (48).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720615440.7U CN206987967U (en) | 2017-05-28 | 2017-05-28 | A kind of aero-engine fuel nozzle main combustion stage working connection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720615440.7U CN206987967U (en) | 2017-05-28 | 2017-05-28 | A kind of aero-engine fuel nozzle main combustion stage working connection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206987967U true CN206987967U (en) | 2018-02-09 |
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ID=61390484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720615440.7U Active CN206987967U (en) | 2017-05-28 | 2017-05-28 | A kind of aero-engine fuel nozzle main combustion stage working connection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206987967U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112208780A (en) * | 2020-10-23 | 2021-01-12 | 宜宾三江机械有限责任公司 | Double-sealing quick-release self-sealing valve |
| 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 |
| CN112413645A (en) * | 2020-11-19 | 2021-02-26 | 中国航发沈阳发动机研究所 | Method and system for boosting ignition oil supply of aircraft engine |
| CN117738797A (en) * | 2024-02-21 | 2024-03-22 | 中国航发四川燃气涡轮研究院 | Main oil way valve |
-
2017
- 2017-05-28 CN CN201720615440.7U patent/CN206987967U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112208780A (en) * | 2020-10-23 | 2021-01-12 | 宜宾三江机械有限责任公司 | Double-sealing quick-release self-sealing valve |
| CN112413645A (en) * | 2020-11-19 | 2021-02-26 | 中国航发沈阳发动机研究所 | Method and system for boosting ignition oil supply of aircraft engine |
| CN117738797A (en) * | 2024-02-21 | 2024-03-22 | 中国航发四川燃气涡轮研究院 | Main oil way valve |
| CN117738797B (en) * | 2024-02-21 | 2024-04-16 | 中国航发四川燃气涡轮研究院 | Main oil way valve |
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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: 20191030 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 |