CN207423519U - A kind of pilot jet device for detecting performance - Google Patents
A kind of pilot jet device for detecting performance Download PDFInfo
- Publication number
- CN207423519U CN207423519U CN201721542199.6U CN201721542199U CN207423519U CN 207423519 U CN207423519 U CN 207423519U CN 201721542199 U CN201721542199 U CN 201721542199U CN 207423519 U CN207423519 U CN 207423519U
- Authority
- CN
- China
- Prior art keywords
- face
- diameter
- pilot jet
- torus
- briquetting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Cyclones (AREA)
Abstract
The utility model discloses a kind of pilot jet device for detecting performance, the briquetting (1) of first end face is provided with including lower face and upper surface is provided with the supporting block (2) of second end face, there are one the torus coaxial with first end face for briquetting (1) lower face, the lower face of torus is seal face, the outside diameter of torus is less than the diameter of briquetting (1) lower face, and the interior circular diameter of torus is equal to first end face bore dia；It is the pilot jet putting hole being coaxial therewith below the second end face of supporting block (2) upper surface, the diameter of pilot jet putting hole is less than the diameter of second end face.The utility model sealing effect is good, not easy to leak, can Reusability, extend service life.
Description
Technical field
The utility model belongs to flow test field, the pilot jet performance detection dress being related on Afterburner fuel manifold
It puts.
Background technology
The accurate uninterrupted of pilot jet, skewness and spraying matter in order to obtain on Afterburner fuel manifold
Amount, it is necessary to which assembling effect of the simulated firing nozzle on manifold carries out performance detection in advance to part.Pilot jet is logical on manifold
It crosses closing in and plays sealing function, and when single pilot jet is tested, cannot close up, and can only be reached by compressing component sealing surface
To sealing effect, however the whirl hole formed on the cyclone of pilot jet is nearer away from edge, and theoretical spacing only has 0.6mm, close
Front cover is relatively narrow, and sealing difficulty is big.It must could be completed to detect by Special testing device during performance detection.
Existing pilot jet performance detection includes the briquetting of circular cross section and the supporting block of circular cross section with device, such as
Shown in Fig. 1, supporting block upper surface is provided with stepped hole, and spout is placed in one, and the perforate of briquetting lower face, and the seal face in hole is
Step surface less than 0.6mm is deformed using a period of time fixture, i.e. step surface be collapsed, is on the one hand present with step surface gear eddy flow
The phenomenon that device hole, the flow for causing experiment is inaccurate, and another aspect step surface contacts bad with cyclone, will cause to seal not
Good, Seepage occurs for experiment process；And work step surface is added again, belong to clamping processing again, step surface hangs down with oil-through-hole
It directly spends bad, seal request can not be met.
The content of the invention
The technical problems to be solved in the utility model is：A kind of pilot jet device for detecting performance is provided, sealing effect is good,
Not easy to leak, can Reusability, prolong the service life.
The technical solution of the utility model is as follows：
A kind of pilot jet device for detecting performance is provided with the briquetting of first end face including lower face and upper surface is provided with
The supporting block in biend hole, there are one the torus coaxial with first end face, the lower faces of torus for the briquetting lower face
For seal face, the outside diameter of torus is less than the diameter of briquetting lower face, and the interior circular diameter of torus is equal to first end face
Diameter；
It is put below the second end face of the supporting block upper surface for the pilot jet putting hole being coaxial therewith, pilot jet
The diameter for putting hole is less than the diameter of second end face.The torus lower face of briquetting is as seal face directly by cyclone and spout
It is pressed in pilot jet putting hole, and the step surface (utilizing the diameter difference of the two) that briquetting lower face is formed with torus is used
In fixed with second end face and the step surface of pilot jet putting hole formation (utilizing the diameter difference of the two) cooperation, existing guiding
Position effect, and prevent radial-play.
The diameter of the briquetting lower face is less than or equal to the diameter of second end face.
The outside diameter of the torus is less than or equal to the diameter of pilot jet putting hole.
The depth of the pilot jet putting hole is less than or equal to torus height, cyclone thickness and spout big end height three
The sum of person.
Further, pilot jet device for detecting performance further includes guiding plug, and the guiding plug leads to for one with ladder
The cylinder in hole.
Further, there is a bellmouth in the supporting block lower face.
The utility model first designs apparatus structure according to assembly relation of the pilot jet on manifold, and device divides two parts group
Into for placing pilot jet part, then a part is set a part for compressing component according to the oil inlet pipe caliber on manifold
The plant bulk for placing part is designed in counter device oil-through-hole aperture according to the accessory size of pilot jet.
Compared with existing, the advantages of the utility model, is as follows：
Seal face is changed to end face by original step surface, and end face can obtain better intensity by being heat-treated, extend and use
Service life, and after face deformation, can seal face be corrected by the method that face machined flat after stain checks, reach fixture reuse
Purpose, the end face of device process a conical surface, prevent oil stream from being interfered with device.
Description of the drawings
Fig. 1 is existing pilot jet (spout+cyclone) performance detection schematic device；
Fig. 2 is pilot jet (spout+cyclone) performance detection schematic device of the utility model；
In figure：1- briquettings, 2- supporting blocks, 3- guiding plugs, Φ d1=Φ D1=Φ cyclones=Φ spouts, Φ d2=Φ
D2, h3=h1+h2+h5-0.5, h4 >=h1+h2, h6=h7+0.5, h1- cyclone thickness, h2- spout big end height.
Specific embodiment
The technical solution of the utility model is further described below in conjunction with the accompanying drawings, but claimed scope is not limited to
It is described.
As shown in Fig. 2, the diameter of phi d2 of 1 lower face of briquetting is equal to the diameter of phi D2 of second end face, second end face
The distance h6 of depth h7 and 1 lower face of briquetting to cascaded surface meets relation h6=h7+0.5, and there are one 1 lower faces of briquetting and first
The coaxial torus of end-face hole, the lower face of torus is seal face, and the outside diameter Φ d1 of torus are less than 1 lower face of briquetting
Diameter of phi d2.The interior circular diameter of torus is equal to first end face bore dia；It is below the second end face of 2 upper surface of supporting block
The pilot jet putting hole being coaxial therewith, the diameter of phi D1 of pilot jet putting hole are less than the diameter of phi D2 of second end face, branch
There is a bellmouth in 2 lower face of bracer.The outside diameter Φ d1 of torus are equal to the diameter of phi D1 of pilot jet putting hole, are also equal to
Cyclone diameter and nozzle diameter, i.e.,：Φ d1=Φ D1=Φ cyclones=Φ spouts.The depth h3 of pilot jet putting hole with
The relation of torus height h5, cyclone thickness h 1 and spout big end height h2 three meet h3=h1+h2+h5-0.5.It starts
Nozzle performance detection device further include guiding plug 3, guiding plug 3 for one carry ladder hole cylinder, cylinder it is straight
Footpath Φ d2 are equal to the diameter of phi D2 of second end face, and the diameter of phi D1 that hole is relatively large in diameter in stepped hole is equal to cyclone and spout
Outer diameter, depth h4 >=h1+h2 of the large hole.
In use, it operates as steps described below：
(1) cyclone, spout are sequentially loaded into guiding plug 3；
(2) guiding plug 3 is inserted into supporting block 2, spout, cyclone is led into supporting block 2, guide plug 3
Effect is exactly that cyclone and spout are put into supporting block 2, is then just taken out；
(3) supporting block 2 is compressed using briquetting 1, the seal face of supporting block 2 is contacted with cyclone；
(4) exerciser is opened, carries out the performance detection of pilot jet (spout+cyclone)；
(5) whether observed when detecting between briquetting 1 and supporting block 2 has fuel blow；If it was found that leakage, takes out briquetting 1, grinds
The seal face of briquetting 1 is ground, step (1), (2), (3), (4) are repeated after dyeing inspection qualification.
Claims (6)
1. a kind of pilot jet device for detecting performance is provided with the briquetting (1) of first end face including lower face and upper surface is provided with
The supporting block (2) of second end face, it is characterised in that：There are one the circles coaxial with first end face for briquetting (1) lower face
Ring body, the lower face of torus is seal face, and the outside diameter of torus is less than the diameter of briquetting (1) lower face, torus
Interior circular diameter is equal to first end face bore dia；It is risen below the second end face of supporting block (2) upper surface for what is be coaxial therewith
Dynamic nozzle putting hole, the diameter of pilot jet putting hole are less than the diameter of second end face.
2. a kind of pilot jet device for detecting performance according to claim 1, it is characterised in that：Briquetting (1) lower end
The diameter in face is less than or equal to the diameter of second end face.
3. a kind of pilot jet device for detecting performance according to claim 1, it is characterised in that：The outer circle of the torus
Diameter is less than or equal to the diameter of pilot jet putting hole.
4. a kind of pilot jet device for detecting performance according to claim 1, it is characterised in that：The pilot jet is placed
The depth in hole is less than or equal to the sum of torus height, cyclone thickness and spout big end height three.
5. a kind of pilot jet device for detecting performance according to claim 1, it is characterised in that：Further include guiding plug
(3), the cylinder that the guiding plug (3) carries ladder hole for one.
6. a kind of pilot jet device for detecting performance according to claim 1, it is characterised in that：Under the supporting block (2)
There is a bellmouth in end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721542199.6U CN207423519U (en) | 2017-11-17 | 2017-11-17 | A kind of pilot jet device for detecting performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721542199.6U CN207423519U (en) | 2017-11-17 | 2017-11-17 | A kind of pilot jet device for detecting performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207423519U true CN207423519U (en) | 2018-05-29 |
Family
ID=62305294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721542199.6U Active CN207423519U (en) | 2017-11-17 | 2017-11-17 | A kind of pilot jet device for detecting performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207423519U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775889A (en) * | 2018-05-30 | 2018-11-09 | 中国航发动力股份有限公司 | A kind of detection method of aero-engine fuel nozzle eddy flow groove depth |
| CN110108446A (en) * | 2019-05-16 | 2019-08-09 | 中国科学院理化技术研究所 | A kind of single channel nozzle model testboard |
-
2017
- 2017-11-17 CN CN201721542199.6U patent/CN207423519U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775889A (en) * | 2018-05-30 | 2018-11-09 | 中国航发动力股份有限公司 | A kind of detection method of aero-engine fuel nozzle eddy flow groove depth |
| CN110108446A (en) * | 2019-05-16 | 2019-08-09 | 中国科学院理化技术研究所 | A kind of single channel nozzle model testboard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207423519U (en) | A kind of pilot jet device for detecting performance | |
| CN202793702U (en) | Evacuating and pressurizing device for helium mass spectrometer leak detection | |
| CN112284621A (en) | Sealing detection device and detection method for dual-fuel engine jet assembly | |
| CN108871688A (en) | A kind of test-run a machine rack intercooler cooling line leakage detection method | |
| CN206862582U (en) | Filter core automatic testing equipment | |
| CN202284979U (en) | Intelligent digital readout multi-head fuel spray nozzle matching part diameter sealing test bed | |
| CN208043324U (en) | Floating type air tightness test component | |
| CN117007257A (en) | Portable gas cylinder sealing performance inspection device | |
| CN112146820A (en) | Helium medium valve tightness test device and test method thereof | |
| CN207662578U (en) | A kind of vacuum cup sealing propertytest testing stand | |
| CN203116929U (en) | Leakage detecting device for fuel distributor assembly products | |
| CN107762699B (en) | A kind of double oil circuits fuel nozzle flow rate test tooling | |
| CN207751650U (en) | A kind of fuel filter device for detecting sealability | |
| CN202092838U (en) | Hydraulic pressure leak test device for cylinder bodies of four-cylinder engine | |
| CN104787572A (en) | Front positioned mechanism of pipe fitting detecting machine | |
| CN204330238U (en) | A kind of detection platform for connector welding sealing propertytest | |
| CN104019021A (en) | Device and method for detecting water pump sealing performance | |
| CN204643115U (en) | Pipe fitting detects the preposition mechanism of machine | |
| KR20190051107A (en) | Method and apparatus for leak test of high pressure resistant clutch housing | |
| CN207263403U (en) | A kind of sebific duct sealing property detection device | |
| CN205298796U (en) | Well flange seal structure | |
| CN207087367U (en) | A kind of thin-wall complicated part milling clamper | |
| CN201449305U (en) | Leakage-proof device of automobile fuel pressure tester | |
| CN205483421U (en) | Auto electric fuel pump assembly diaphragm sealing performance testing device | |
| CN104062086A (en) | Device for leak detection of fuel oil distributor assembly product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |