CN205089415U - Oil injection nozzle assembly - Google Patents
Oil injection nozzle assembly Download PDFInfo
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- CN205089415U CN205089415U CN201520891737.7U CN201520891737U CN205089415U CN 205089415 U CN205089415 U CN 205089415U CN 201520891737 U CN201520891737 U CN 201520891737U CN 205089415 U CN205089415 U CN 205089415U
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- oil
- injection nozzle
- oil injection
- valve
- valve body
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Abstract
The utility model discloses an oil injection nozzle assembly belongs to the technical field of diesel engine part. Its technical scheme does: an oil injection nozzle assembly, include the oil injection nozzle and with the voltage limiting valve that the oil injection nozzle is connected, be provided with the place kick on the oil injection nozzle, the voltage limiting valve includes the valve body and arranges the valve barrel in the valve body in, is provided with the spring in the valve barrel, spring one end and valve barrel fixed connection, the other end and gasket fixed connection, the gasket setting in the counter bore on valve body top, the tip crimping of valve barrel with the communicating step hole one end of main oil gallery, the valve body upper end is provided with the orifice, the orifice is linked together with the oil pipe of oil injection nozzle. The beneficial effects of the utility model are that: can guarantee the fuel injection pressure and the distributive value of oil injection nozzle, the not oil spout or lack the oil spout when the low -load cold state turn round of control machine oil nozzle, again can be rapidly when the hot operation of the high load capacity timely oil spout cooling and lubrication that carries on has reduced the deformation of piston heating load effectively, lengthens the life of piston.
Description
Technical field
The utility model relates to the technical field of diesel engine part, particularly a kind of oil injection nozzle assembly.
Background technique
Diesel engine, as a kind of power equipment, the industries such as transport, generating or mining is widely used.The piston of diesel engine is in the region very high with heat load that run up, the cooling of general diesel engine piston is the High Rotation Speed relying on bent axle, lube pistons is carried out by oil injection nozzle splash machine oil, common oil injection nozzle is when low-load cold conditions operates or all oil spouts when the hot running of high load, the not oil spout when low-load cold conditions operates can not be controlled, Oil injection cooling and lubrication can be carried out timely rapidly when the hot running of high load.
Model utility content
In order to solve the deficiency of above-mentioned prior art, the purpose of this utility model is: provide one can control the not oil spout when low-load cold conditions operates, and can carry out the oil injection nozzle assembly of oil spout when the hot running of high load in time simultaneously.
Invention thinking of the present utility model: add pressure-limit valve on common oil nozzle, can control oil nozzle not oil spout when low-load cold conditions operates, can carry out the oil injection nozzle assembly of oil spout when the hot running of high load in time.
A kind of oil injection nozzle assembly, the pressure-limit valve comprising oil injection nozzle and be connected with described oil injection nozzle, described oil injection nozzle is provided with place kick, described pressure-limit valve comprises valve body and is placed in the valve pocket in described valve body, spring is provided with in described valve pocket, described spring one end is fixedly connected with described valve pocket, the other end is fixedly connected with pad, described pad is arranged in the counterbore on described valve body top, the end of described valve pocket is crimped on the step hole one end communicated with main oil gallery, described valve body upper end is provided with spray orifice, and described spray orifice is connected with the oil pipe of oil injection nozzle.
Described pad and described spring are riveted.
Described step hole diameter from large to small.
During utility model works, be arranged on the main oil gallery bottom cylinder block, get oil by the main oil gallery in cylinder block by oil nozzle by place kick, the pressure-limit valve of oil injection nozzle is fixedly mounted on cylinder block main oil gallery, and oil pipe is connected by pressure-limit valve and main oil gallery.When the engine operates, machine oil is injected cylinder block main oil gallery by oil pump, after the engine oil pressure in main oil gallery reaches the cracking pressure of pressure-limit valve, machine oil heads on valve pocket from step hole makes spring stress compress, now pressure-limit valve is in opening state, machine oil in cylinder block main oil gallery directly enters oil pipe by step hole, spray orifice, sprays into the piston of motion from oil pipe, implements cooling to piston.Along with the rising of main oil gallery inner engine oil pressure, the oil mass being entered oil pipe by pressure-limit valve is increased, and the oil level of oil injection nozzle injection into pistion also increases thereupon, when the engine oil pressure in main oil gallery does not reach the cracking pressure of limited valve, now be in the running of low-load cold conditions, spray bar not oil spout.
By test, the beneficial effects of the utility model are: the oilhole of valve body is directly connected with the main oil gallery of diesel engine and effectively can ensures injection pressure and the fuel injection quantity of oil injection nozzle, simultaneously due to the effect of pressure-limit valve, can effectively controller oil nozzle not oil spout or few oil spout when low-load cold conditions operates, Oil injection cooling and lubrication can be carried out timely rapidly again when the hot running of high load, significantly reduce piston heat load distortion, extend the working life of piston.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is sectional view of the present utility model.
Wherein, reference character is: 1, oil injection nozzle; 2, pressure-limit valve; 3, valve body; 4, valve pocket; 5, step hole; 6, spring; 7, pad; 8, spray orifice; 9, oil pipe; 10, place kick.
Embodiment
In order to the technical characterstic of this programme can be clearly demonstrated, below by embodiment, this programme is set forth.
Embodiment 1
See Fig. 1, Fig. 2, the utility model is a kind of oil injection nozzle assembly, the pressure-limit valve 2 comprising oil injection nozzle 1 and be connected with oil injection nozzle 1, oil injection nozzle 1 is provided with place kick 10, the valve pocket 4 that pressure-limit valve 2 comprises valve body 3 and is placed in valve body 3, spring 6 is provided with in valve pocket 4, spring 6 one end is fixedly connected with valve pocket 4, the other end is fixedly connected with pad 7, and pad 7 is arranged in the counterbore on valve body 3 top, and the end of valve pocket 4 is crimped on step hole 5 one end communicated with main oil gallery, valve body 3 upper end is provided with spray orifice 8, and spray orifice 8 is connected with the oil pipe 9 of oil injection nozzle 1.Pad and spring 6 are riveted.Step hole 5 diameter from large to small.
The utility model can pass through without the technical characteristics described or adopt existing techniques in realizing, do not repeat them here, certainly, above-mentioned explanation is not to restriction of the present utility model, the utility model is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to the utility model.
Claims (3)
1. an oil injection nozzle assembly, the pressure-limit valve (2) comprising oil injection nozzle (1) and be connected with described oil injection nozzle (1), described oil injection nozzle (1) is provided with place kick (10), it is characterized in that, described pressure-limit valve (2) comprises valve body (3) and is placed in the valve pocket (4) in described valve body (3), spring (6) is provided with in described valve pocket (4), described spring (6) one end is fixedly connected with described valve pocket (4), the other end is fixedly connected with pad (7), described pad (7) is arranged in the counterbore on described valve body (3) top, the end of described valve pocket (4) is crimped on step hole (5) one end communicated with main oil gallery, described valve body (3) upper end is provided with spray orifice (8), described spray orifice (8) is connected with the oil pipe (9) of oil injection nozzle (1).
2. oil injection nozzle assembly according to claim 1, is characterized in that, described pad (7) and described spring (6) are riveted.
3. described oil injection nozzle assembly according to claim 1, it is characterized in that, described step hole (5) diameter from large to small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520891737.7U CN205089415U (en) | 2015-11-11 | 2015-11-11 | Oil injection nozzle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520891737.7U CN205089415U (en) | 2015-11-11 | 2015-11-11 | Oil injection nozzle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205089415U true CN205089415U (en) | 2016-03-16 |
Family
ID=55480111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520891737.7U Active CN205089415U (en) | 2015-11-11 | 2015-11-11 | Oil injection nozzle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205089415U (en) |
-
2015
- 2015-11-11 CN CN201520891737.7U patent/CN205089415U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170525 Address after: 311232, No. 699, No. six, Red Thai farm, Xiaoshan economic and Technological Development Zone, Xiaoshan District, Hangzhou, Zhejiang Patentee after: China Zhongqi Group Hangzhou Engine Co.,Ltd Address before: 250101 Shandong city of Ji'nan province high tech Zone (AO Licheng District Road No. 777) Patentee before: China National Heavy Duty Truck Group Jinan Power Co., Ltd. |