CN208966443U - SRM Nozzle - Google Patents
SRM Nozzle Download PDFInfo
- Publication number
- CN208966443U CN208966443U CN201821656320.2U CN201821656320U CN208966443U CN 208966443 U CN208966443 U CN 208966443U CN 201821656320 U CN201821656320 U CN 201821656320U CN 208966443 U CN208966443 U CN 208966443U
- Authority
- CN
- China
- Prior art keywords
- counterbore
- positioning step
- nozzle tube
- nozzle
- guide ring
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Spark Plugs (AREA)
Abstract
A kind of SRM Nozzle, it is characterized by it and is made of guide ring, heat insulator, nozzle tube, its outer surface of heat insulator matches with the inner surface of nozzle tube, the diameter of its inner surface lower section is identical as positioning step hole, upper end matches with the outer surface of guide ring, positioning step hole end face to the heat insulator inner surface between guide ring small end face be the ascending tubaeform of continuous and derivable.The nozzle tube inner surface of II bottom is made of multistage concentric axis, the circular cone of different tapers and cylinder from positioning step nose end to counterbore.The utility model covers the good heat insulator of one layer of resistance to ablation, heat-proof quality on nozzle tube surface, solves SRM Nozzle inner wall and is easy ablated disadvantage under the action of tail gas high temperature, extends the service life of SRM Nozzle.
Description
Technical field
The utility model relates to a kind of SRM Nozzle, especially SRM Nozzle and its production method and make
Mold.
Background technique
With the raising of the solid engines performance of propellant, the requirement to jet pipe insulation diffuser scour resistance is also continuous
It improves, existing aluminum jet pipe is easy ablated under the action of high temperature, and influences service performance.
Summary of the invention
The utility model aim be to overcome existing solid engines aluminum jet pipe there are the shortcomings that, providing one kind has well
Heat-proof quality and ablation resistance SRM Nozzle.
Technical solution used by the utility model be a kind of SRM Nozzle, be characterized by it by guide ring,
Heat insulator, nozzle tube composition, nozzle tube shape is cylinder, and interior lower end has positioning step hole, in the upper surface of positioning step hole
There is the counterbore I greater than positioning step hole, have a counterbore II in the upper end of nozzle tube, the aperture of nozzle tube inner surface is from positioning step hole
It holds II bottom of counterbore to be gradually increased, has flange collar I in the rear end of counterbore I, guide ring is up big and down small hollow two section cylindricality
Constitute, have a flange collar II on the surface of small shell of column, the height of heat insulator by counterbore I bottom surface to the end face of counterbore II, outer surface
It matches with the inner surface of nozzle tube, the diameter of inner surface lower section is identical as positioning step hole, in II rear end of counterbore and water conservancy diversion
The outer surface of ring matches, positioning step hole end face to the heat insulator inner surface between guide ring small end face be continuous and derivable
It is ascending tubaeform, tubaeform end diameter is less than power stepped hole, and tubaeform outside diameter is equal to guide ring
Internal diameter.
The positioning step hole I of the utility model nozzle tube interior lower end be for being matched with the other parts of engine,
The utility model increases one layer of heat insulator in the nozzle tube inner surface of aluminum, is burnt to be effectively prevented aluminum jet pipe by high temperature
Erosion, and influences the service performance of jet pipe, and it is to reduce jet resistance that the inner surface of heat insulator, which is smooth,.
The nozzle tube inner surface of II bottom is by the circle of multistage concentric axis, different tapers from positioning step nose end to counterbore
Cone and cylinder composition.Joint face between nozzle tube and heat insulator is designed as rough, discontinuous surface, is for the two
Between engage it is stronger.But all cross sections are concentric circles, this is in order to which the thickness of heat insulator on same cross section is identical.
The utility model covers the good heat insulator of one layer of resistance to ablation, heat-proof quality on nozzle tube surface, solves solid
Engine jet pipe inner wall is easy ablated disadvantage under the action of tail gas high temperature, and extend SRM Nozzle uses the longevity
Life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model
Wherein: tubaeform 3 nozzle tube, 31 positioning step hole, 32 counterbore I 33 of 1 guide ring, 12 flange collar, II 2 heat insulator 22
II 34 flange collar I of counterbore.
Specific embodiment
The utility model is described in detail below with reference to view, cited embodiment can make the skill of this profession
Art personnel more understand the utility model, but do not limit the utility model in any form.
As shown in Figure 1, a kind of SRM Nozzle, it is made of guide ring 1, heat insulator 2, nozzle tube 3, outside nozzle tube
Shape is cylinder, and interior lower end has positioning step hole 31, has the counterbore I greater than positioning step hole in the upper surface of positioning step hole
32, there is counterbore II 33 in the upper end of nozzle tube, in order to engage stronger connection between nozzle tube and heat insulator with heat insulator
Face is designed as rough, discontinuous surface, even there is the curved surface of fluctuating, II 33 bottom from positioning step nose end to counterbore
Nozzle tube inner surface be made of the circular cone even circular cone of different directions and the cylinder of multistage concentric axis, different taper.But
All cross sections are concentric circles, this is in order to which the thickness of heat insulator on same cross section is identical.But nozzle tube inner surface
Aperture diameter in II 33 bottom cross sections from positioning step nose end to counterbore is the trend being gradually increased, in the rear end of counterbore I 32
There is flange collar I 34, guide ring is that up big and down small hollow two section cylindricality is constituted, and has flange collar II 12 on the surface of small shell of column, heat-insulated
The height of body is by the bottom surface to the end face of counterbore II of counterbore I, and outer surface matches with the inner surface of nozzle tube, under inner surface
The diameter of section is identical as positioning step hole, matches in II rear end of counterbore with the outer surface of guide ring, at the end in positioning step hole
Face to the heat insulator inner surface between guide ring small end face be continuous and derivable ascending tubaeform 22, tubaeform small end
Diameter is less than power stepped hole, and tubaeform outside diameter is equal to the internal diameter of guide ring.Heat insulator is using there is ablation resistance, good
The material of heat-proof quality be made, guarantee that lower than ablated temperature, life is usually used in the nozzle tube internal surface temperature of aluminum
The packing material for producing the high silicon oxygen cloth that producer provides and phenolic aldehyde mixing is suppressed, the thickness of the utility model heat insulator thinnest part
For 3mm, to guarantee nozzle tube not by high temperature injury.
Claims (2)
1. a kind of SRM Nozzle, it is characterised in that it is made of guide ring (1), heat insulator (2), nozzle tube (3), jet pipe
External shape is cylinder, and interior lower end has positioning step hole (31), has in the upper surface of positioning step hole greater than positioning step hole
Counterbore I (32) has counterbore II (33) in the upper end of nozzle tube, and the aperture of nozzle tube inner surface is II from positioning step nose end to counterbore
(33) bottom is gradually increased, and has flange collar I (34) in the rear end of counterbore I (32), guide ring is up big and down small hollow two section column
Shape is constituted, and has a flange collar II (12) on the surface of small shell of column, the height of heat insulator by counterbore I bottom surface to the end face of counterbore II,
Outer surface matches with the inner surface of nozzle tube, and the diameter of inner surface lower section is identical as positioning step hole, in II rear end of counterbore
It matches with the outer surface of guide ring, connects in the end face in positioning step hole to the heat insulator inner surface between guide ring small end face
Continue smooth ascending tubaeform (22), tubaeform end diameter is less than power stepped hole, tubaeform outside diameter etc.
In the internal diameter of guide ring.
2. a kind of SRM Nozzle according to claim 1, it is characterised in that II from positioning step nose end to counterbore
(33) the nozzle tube inner surface of bottom is made of multistage concentric axis, the circular cone of different tapers and cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821656320.2U CN208966443U (en) | 2018-10-12 | 2018-10-12 | SRM Nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821656320.2U CN208966443U (en) | 2018-10-12 | 2018-10-12 | SRM Nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966443U true CN208966443U (en) | 2019-06-11 |
Family
ID=66758444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821656320.2U Withdrawn - After Issue CN208966443U (en) | 2018-10-12 | 2018-10-12 | SRM Nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047512A (en) * | 2018-10-12 | 2018-12-21 | 福建兵工装备有限公司 | SRM Nozzle blank component and its production method and the mold used |
-
2018
- 2018-10-12 CN CN201821656320.2U patent/CN208966443U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047512A (en) * | 2018-10-12 | 2018-12-21 | 福建兵工装备有限公司 | SRM Nozzle blank component and its production method and the mold used |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208966443U (en) | SRM Nozzle | |
| CN107002495A (en) | For the blade for manufacturing the method for rotor blade and obtaining in this way | |
| CN206578286U (en) | Continuous casting production crescent block turbulent flow suppressor | |
| CN108642238A (en) | A kind of steel-making super burn surpasses cluster fluidic jet pipe and its super cluster fluidic method of super burn | |
| CN109047512B (en) | Solid engine spray pipe blank assembly, production method thereof and used mold | |
| CN206083448U (en) | Pressure wire drawing die sleeve | |
| CN102501003A (en) | Blast-furnace tuyere small sleeve extrusion technology | |
| CN107917016B (en) | Head shell structure of high-pressure-bearing precombustion chamber | |
| CN106424629A (en) | Casting mold cooling structure | |
| CN206404938U (en) | A kind of ceramic nozzle | |
| CN113719380B (en) | Endurance engine tail pipe lining blank and pressing die and manufacturing method thereof | |
| CN115199455A (en) | Grooved draft tube for inhibiting hump characteristic of water pump turbine and use method thereof | |
| CN212132973U (en) | Multi-stage hole center nucleon device | |
| CN208842607U (en) | A kind of marine propeller conduit | |
| CN104001604A (en) | Jet pipe structure for jet mill | |
| CN210620234U (en) | Outer liquid filling device that dashes of air film hole | |
| CN107261535A (en) | A kind of falling film evaporator | |
| CN106392051A (en) | Stopper rod for continuous casting | |
| CN205823450U (en) | The gas deflation assembly of small size gas turbine | |
| CN102211169A (en) | Ceramic liquid lifting pipe with matched movable metal flange | |
| CN205200545U (en) | A gas atomizing nozzle for alloy powder production | |
| CN207149535U (en) | Split type sapphire air jet system | |
| CN217798894U (en) | Low pressure casting mould core vent | |
| CN206854646U (en) | Efficiently improve Quick change upper nozzle | |
| CN214949197U (en) | Combustion pagoda of lighter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190611 Effective date of abandoning: 20230523 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190611 Effective date of abandoning: 20230523 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |