CN204041197U - Be applied to the piston cooling nozzle on diesel engine - Google Patents
Be applied to the piston cooling nozzle on diesel engine Download PDFInfo
- Publication number
- CN204041197U CN204041197U CN201420498926.3U CN201420498926U CN204041197U CN 204041197 U CN204041197 U CN 204041197U CN 201420498926 U CN201420498926 U CN 201420498926U CN 204041197 U CN204041197 U CN 204041197U
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- piston
- piston cooling
- cooling nozzle
- diesel engine
- nozzle body
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- Pistons, Piston Rings, And Cylinders (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Be applied to the piston cooling nozzle on diesel engine, comprise body (1) and the piston (6) of diesel engine, piston (6) is plugged in body (1), body (1) forms main oil gallery (11), piston cooling nozzle body (2) is provided with in body (1), piston cooling nozzle body (2) sleeve is on threeway bolt (3), threeway bolt (3) is spirally connected and is fastened on body (1) and is connected with main oil gallery (11), described piston cooling nozzle body (2) is fixedly connected with piston cooling spray pipe (5), the nozzle of piston cooling spray pipe (5) is positioned at the below of piston (6).It reduces the heat that in to-and-fro motion, piston absorbs in time, reduces piston temperature, improves the distribution of piston combustion bowl bottom temp, with the intensity making piston keep higher, meets the usage requirement of diesel engine.
Description
Technical field:
The utility model relates to the technical field of diesel engine, more specifically to the piston cooling nozzle be applied on diesel engine.
Background technique:
Piston is as one of topmost Heating Components of diesel engine, long-term work is under rugged environment, very high heat load need be subject, and the stress that these loads produce directly affects its working life, therefore, the structural design of piston and operation conditions, have vital impact to the reliability of diesel engine, life-span, discharge and Economy.
When diesel engine operationally, piston constantly absorbs heat from combustion system, heat is easily gathered in piston head, make piston head, the temperature of the first annular groove raises rapidly, cause piston head abnormal expansion, easily cause piston scraping, machine oil gum deposit, the failure modes such as piston ring sticking, greatly endanger reliability and the durability of diesel engine.
Thus ensure that piston has good reliability, meet the usage requirement of diesel engine, the heat that piston absorbs must be passed away in time.Under normal circumstances, the heat that piston absorbs is transmitted by piston ring, piston skirt and piston cavity top, but for high intensification piston of diesel engine, only can not meet the requirement of cooling piston by these modes.
Model utility content:
The purpose of this utility model is exactly the deficiency for prior art, and provides a kind of piston cooling nozzle be applied on diesel engine, and it reduces the heat that in to-and-fro motion, piston absorbs, and reduces piston temperature, improves the distribution of piston combustion bowl bottom temp.
Technology solution of the present utility model is as follows:
Be applied to the piston cooling nozzle on diesel engine, comprise body and the piston of diesel engine, piston is plugged in body, body forms main oil gallery, be provided with piston cooling nozzle body in body, piston cooling nozzle body sleeve is on threeway bolt, and threeway bolt is spirally connected and is fastened on body and is connected with main oil gallery, described piston cooling nozzle body is fixedly connected with piston cooling spray pipe, and the nozzle of piston cooling spray pipe is positioned at the below of piston.
The upper-end surface of described piston cooling nozzle body is provided with locating stud, and the lower end of locating stud is plugged in piston cooling nozzle body, upper end is plugged on the body of diesel engine.
Described piston cooling nozzle body forms the through hole run through, the through hole that piston cooling spray pipe cools nozzle body with piston is connected, the screw part of described threeway bolt is plugged in the through hole of piston cooling nozzle body, and the diameter of the screw part of threeway bolt is less than the diameter of the through hole of piston cooling nozzle body.
Shaping chamfering between the screw part of described threeway bolt and head connect, chamfering leans against on the lower side of piston cooling spray pipe through hole.
The beneficial effects of the utility model are:
It reduces the heat that in to-and-fro motion, piston absorbs in time, reduces piston temperature, improves the distribution of piston combustion bowl bottom temp, with the intensity making piston keep higher, meets the usage requirement of diesel engine.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation that the utility model is analysed and observe.
In figure: 1, body; 2, piston cooling nozzle body; 3, threeway bolt; 4, locating stud; 5, piston cooling spray pipe; 6, piston; 11, main oil gallery; 21, through hole; 31, chamfering.
Embodiment:
Embodiment: see shown in Fig. 1,2, be applied to the piston cooling nozzle on diesel engine, comprise body 1 and the piston 6 of diesel engine, piston 6 is plugged in body 1, body 1 forms main oil gallery 11, piston cooling nozzle body 2 is provided with in body 1, piston cooling nozzle body 2 sleeve is on threeway bolt 3, threeway bolt 3 is spirally connected and is fastened on body 1 and is connected with main oil gallery 11, described piston cooling nozzle body 2 is fixedly connected with piston cooling spray pipe 5, and the nozzle of piston cooling spray pipe 5 is positioned at the below of piston 6.
The upper-end surface of described piston cooling nozzle body 2 is provided with locating stud 4, and the lower end of locating stud 4 is plugged in piston cooling nozzle body 2, upper end is plugged on the body 1 of diesel engine.
Described piston cooling nozzle body 2 forms the through hole 21 run through, the through hole 21 that piston cooling spray pipe 5 and piston cool nozzle body 2 is connected, the screw part of described threeway bolt 3 is plugged in the through hole 21 of piston cooling nozzle body 2, and the diameter of the screw part of threeway bolt 3 is less than the diameter of the through hole 21 of piston cooling nozzle body 2.
Shaping chamfering 31 between the screw part of described threeway bolt 3 and head connect, chamfering 31 leans against on the lower side of piston cooling spray pipe 5 through hole 21.
Working principle: piston of the present utility model cooling nozzle cannot meet the cooling requirement of the piston of highly-intensified diesel engine, from arising at the historic moment because of existing conventional chilling mode;
It cools nozzle body 2, piston cooling spray pipe 5, threeway bolt 3, locating stud 4 etc. by piston and forms, when diesel engine operates, part machine oil on main oil gallery 11 is by the piston cooling spray pipe 5 constantly injection into pistion inner chamber of piston cooling nozzle, machine oil flow back into oil sump after piston cavity vibration, absorption piston heat, thus reduce the temperature of piston 6, improve the distribution of piston combustion bowl bottom temp.
Forcing the diesel engine of Oil injection cooling to cooling the less demanding of nozzle for piston cavity simultaneously, only needing to ensure fuel injection quantity, the divergence and spray angle cooling nozzle is not strict with.
Claims (4)
1. be applied to the piston cooling nozzle on diesel engine, comprise body (1) and the piston (6) of diesel engine, piston (6) is plugged in body (1), body (1) forms main oil gallery (11), it is characterized in that: in body (1), be provided with piston cooling nozzle body (2), piston cooling nozzle body (2) sleeve is on threeway bolt (3), threeway bolt (3) is spirally connected and is fastened on body (1) and is connected with main oil gallery (11), described piston cooling nozzle body (2) is fixedly connected with piston cooling spray pipe (5), the nozzle of piston cooling spray pipe (5) is positioned at the below of piston (6).
2. the piston cooling nozzle be applied on diesel engine according to claim 1, it is characterized in that: the upper-end surface of described piston cooling nozzle body (2) is provided with locating stud (4), the lower end of locating stud (4) is plugged in piston cooling nozzle body (2), upper end is plugged on the body (1) of diesel engine.
3. the piston cooling nozzle be applied on diesel engine according to claim 1, it is characterized in that: described piston cooling nozzle body (2) forms the through hole (21) run through, the through hole (21) that piston cooling spray pipe (5) and piston cool nozzle body (2) is connected, the screw part of described threeway bolt (3) is plugged in the through hole (21) of piston cooling nozzle body (2), and the diameter of the screw part of threeway bolt (3) is less than the diameter of the through hole (21) of piston cooling nozzle body (2).
4. the piston cooling nozzle be applied on diesel engine according to claim 2, it is characterized in that: shaping chamfering (31) between the screw part of described threeway bolt (3) and head connect, chamfering (31) leans against on the lower side of piston cooling spray pipe (5) through hole (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498926.3U CN204041197U (en) | 2014-09-01 | 2014-09-01 | Be applied to the piston cooling nozzle on diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498926.3U CN204041197U (en) | 2014-09-01 | 2014-09-01 | Be applied to the piston cooling nozzle on diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041197U true CN204041197U (en) | 2014-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420498926.3U Active CN204041197U (en) | 2014-09-01 | 2014-09-01 | Be applied to the piston cooling nozzle on diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204041197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966298A (en) * | 2017-12-05 | 2018-04-27 | 中车戚墅堰机车有限公司 | Diesel engine piston lubricating oil sprays simulation test device |
-
2014
- 2014-09-01 CN CN201420498926.3U patent/CN204041197U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966298A (en) * | 2017-12-05 | 2018-04-27 | 中车戚墅堰机车有限公司 | Diesel engine piston lubricating oil sprays simulation test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |