CN203594544U - Oil injector assembly - Google Patents
Oil injector assembly Download PDFInfo
- Publication number
- CN203594544U CN203594544U CN201320606219.7U CN201320606219U CN203594544U CN 203594544 U CN203594544 U CN 203594544U CN 201320606219 U CN201320606219 U CN 201320606219U CN 203594544 U CN203594544 U CN 203594544U
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- CN
- China
- Prior art keywords
- oil
- injector body
- return pipe
- pipe component
- oil injector
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an oil injector assembly which comprises an oil injector body, an oil return pipe component and oil nozzle matching parts. The lower end of the oil injector body is connected with the oil nozzle matching parts through an intermediate and a cap nut, an ejector rod is arranged at the top end of a needle valve of the matching parts, a pressure adjusting spring and a pressure adjusting gasket are arranged at the upper end of the ejector rod in sequence, the oil return pipe component is arranged at the upper end of the oil injector body, and the oil return pipe component and the oil injector body are fixedly arranged through a locking nut. In this way, according to the oil injector assembly, the structure of the oil injector body is optimized, the assembly process is simpler and more reasonable, the sealing effect of the oil injector body is better, high pressure oil circulation in the whole working process is smooth, fuel oil combustion is more sufficient, the discharge index is optimized, and the good environment-friendly effect is achieved.
Description
Technical field
The utility model relates to Diesel Engine Technique Field, particularly relates to a kind of injector assembly.
Background technique
In recent years along with the raising of domestic industry level, diesel engine makes great progress on the workmanship of component, but day by day in short supply along with the constantly strict and petroleum-based energy of tail-gas law, makes for diesel emission standard and more and more stricter to the requirement of economical engine.
Oil sprayer is one of vitals of combustion system of diesel engine, can make fuel oil enter combustion chambers burn with atomised form under certain pressure effect.In prior art, the component of oil sprayer are lengthy and jumbled, assemble up difficultly, and high pressure fuel is easy to blocking in the circulation of oil sprayer inside, thereby has greatly affected the firing effect of fuel oil, does not reach the emission standard of current diesel engine.
Model utility content
The technical problem that the utility model mainly solves is to provide a kind of injector assembly, optimize the structure of oil sprayer, guarantee assembly process advantages of simple more, the sealing effect of oil sprayer is more excellent, the circulation of whole working procedure mesohigh oil smoothly, the burning of fuel oil is simultaneously more abundant, has optimized exhaust index, has excellent environment protection effect.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of injector assembly is provided, comprise: oil injector body, oil return pipe component and oil nozzle couple, the lower end of described oil injector body is connected with injector nozzle matching parts with tight cap by intermediate, in oil nozzle couple, the top of needle-valve is provided with push rod, push rod upper end is provided with pressure adjusting spring and pressure regulation pad successively, described oil return pipe component is arranged on the upper end of oil injector body, and oil return pipe component and oil injector body are fixedly installed by fastening screw nut.
In preferred embodiment of the utility model, assembling place of described oil injector body and oil return pipe component is provided with O RunddichtringO.
In preferred embodiment of the utility model, the bottom of described oil return pipe component arranges by gasket seal and oil injector body sealing.
In preferred embodiment of the utility model, the oilhole of described oil injector body is communicated with the oil inlet hole of oil nozzle couple.
In preferred embodiment of the utility model, the spill port in described oil return pipe component is communicated with the inner chamber of oil injector body by oil returning tube.
The beneficial effects of the utility model are: the utility model injector assembly has been optimized the structure of oil sprayer, guarantee assembly process advantages of simple more, the sealing effect of oil sprayer is more excellent, the circulation of whole working procedure mesohigh oil smoothly, the burning of fuel oil is more abundant simultaneously, optimize exhaust index, there is excellent environment protection effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the structural representation of injector assembly one preferred embodiment of the present utility model;
In accompanying drawing, the mark of each parts is as follows: 1, tight cap, 2, intermediate, 3, push rod, 4, pressure adjusting spring, 5, gasket seal, 6, oil return pipe component, 7, O RunddichtringO, 8, fastening screw nut, 9, oil injector body, 10, pressure regulation pad, 11, oil nozzle couple.
Embodiment
To the technological scheme in the utility model embodiment be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiments that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, the utility model is embodiment comprise:
A kind of injector assembly, comprise: oil injector body 9, oil return pipe component 6 and oil nozzle couple 11, the lower end of described oil injector body 9 is connected with injector nozzle matching parts 11 with tight cap 1 by intermediate 2, the oilhole of described oil injector body 9 is communicated with the oil inlet hole of oil nozzle couple 11, described oil return pipe component 6 is arranged on the upper end of oil injector body 9, and the spill port in described oil return pipe component 6 is communicated with the inner chamber of oil injector body 9 by oil returning tube.
In described oil nozzle couple 11, the top of needle-valve is provided with push rod 3, and push rod 3 upper ends are provided with pressure adjusting spring 4 and pressure regulation pad 10 successively.
Described oil return pipe component 6 is arranged on the upper end of oil injector body 9, and oil return pipe component 6 is fixedly installed by fastening screw nut 8 with oil injector body 9, not only can guarantee so the fastening performance of oil return pipe component 6, has also optimized the structure of oil sprayer simultaneously.
Described oil injector body 9 is provided with O RunddichtringO 7 with assembling place of oil return pipe component 6, and the bottom of described oil return pipe component 6 arranges by gasket seal 5 and oil injector body 9 sealings, guarantees that the sealing effect of oil sprayer is more excellent.
The working procedure of the utility model injector assembly is:
High pressure oil enters oil injector body 9 inside from the oilhole of oil injector body 9, then flow into injector nozzle matching parts 11, spray under injection starting pressure effect at injector nozzle matching parts 11 inner high voltage oil, unnecessary high pressure oil flows into the inner chamber of oil injector body 9 again, flows out oil sprayer by the spill port in oil return pipe component 6.
The utility model all parts on oil sprayer and oil sprayer couple before assembling all should carefully be cleaned, each sealing surfaces of must not damaging when assembling, must not exchange any part in couple, each oil sprayer must be used Special oil nozzle run-in under cracking pressure 12MPa, be no less than 5min running time, the tightening torque that oil injector body 9 tightens cap 1 is 40 ~ 50NM, and the cracking pressure of needle-valve is 15.5 ~ 17.5MPa, and the injector assembly of dressing up rear injector nozzle matching parts 11 should turn round 100,000 times.
The beneficial effect of the utility model injector assembly is:
Optimized the structure of oil sprayer, guaranteed assembly process advantages of simple more, the sealing effect of oil sprayer is more excellent, and smoothly, the burning of fuel oil is simultaneously more abundant, has optimized exhaust index, has excellent environment protection effect in the circulation of whole working procedure mesohigh oil.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. an injector assembly, it is characterized in that, comprise: oil injector body, oil return pipe component and oil nozzle couple, the lower end of described oil injector body is connected with injector nozzle matching parts with tight cap by intermediate, in oil nozzle couple, the top of needle-valve is provided with push rod, push rod upper end is provided with pressure adjusting spring and pressure regulation pad successively, and described oil return pipe component is arranged on the upper end of oil injector body, and oil return pipe component and oil injector body are fixedly installed by fastening screw nut.
2. injector assembly according to claim 1, is characterized in that, assembling place of described oil injector body and oil return pipe component is provided with O RunddichtringO.
3. injector assembly according to claim 1, is characterized in that, the bottom of described oil return pipe component arranges by gasket seal and oil injector body sealing.
4. injector assembly according to claim 1, is characterized in that, the oilhole of described oil injector body is communicated with the oil inlet hole of oil nozzle couple.
5. injector assembly according to claim 1, is characterized in that, the spill port in described oil return pipe component is communicated with the inner chamber of oil injector body by oil returning tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320606219.7U CN203594544U (en) | 2013-09-29 | 2013-09-29 | Oil injector assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320606219.7U CN203594544U (en) | 2013-09-29 | 2013-09-29 | Oil injector assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594544U true CN203594544U (en) | 2014-05-14 |
Family
ID=50675437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320606219.7U Expired - Fee Related CN203594544U (en) | 2013-09-29 | 2013-09-29 | Oil injector assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594544U (en) |
-
2013
- 2013-09-29 CN CN201320606219.7U patent/CN203594544U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20140929 |
|
| EXPY | Termination of patent right or utility model |