CN203559995U - Cooling structure for bushing-free fuel injector hole of cylinder cover - Google Patents
Cooling structure for bushing-free fuel injector hole of cylinder cover Download PDFInfo
- Publication number
- CN203559995U CN203559995U CN201320703861.7U CN201320703861U CN203559995U CN 203559995 U CN203559995 U CN 203559995U CN 201320703861 U CN201320703861 U CN 201320703861U CN 203559995 U CN203559995 U CN 203559995U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- hole
- fuel injector
- weldment
- cooling structure
- 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.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 14
- 239000000446 fuel Substances 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model provides a cooling structure for a bushing-free fuel injector hole of a cylinder cover. A water filling hole is formed in the part, adjacent to the fuel injector hole, of the bottom of the cylinder cover, a nozzle weldment is press-fit in the hole, a nozzle is aligned with the wall of the fuel injector hole, an included angle alpha of the outlet direction and the inlet direction of the nozzle is 900-100 degrees, and the hole diameter of the nozzle is 3-5 mm. The cooling structure is simple and reliable, the cost is low, the cooling effect is remarkable, and the breakdown of the fuel injector caused by temperature rising can be effectively avoided.
Description
Technical field
The utility model relates to cylinder cover for diesel engine structure, particularly a kind of without edge cover cylinder cap fuel injector hole cooling structure.
Background technique
The oil sprayer of diesel engine is contained in cylinder head, and the oil injector hole of cylinder head is divided into without edge cover and has two kinds of structures of edge cover, and the former with the latter is compared, although can simplify technique, significantly reduce component cost, thermolysis is poor, weaken the cooling effect of oil sprayer, caused oil sprayer fault to rise.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple and reliable for structure, can reduce costs, and that can improve again cooling effect overlaps cylinder cap fuel injector hole cooling structure without edge.
The technical solution of the utility model is: without edge cover cylinder cap fuel injector hole cooling structure, cylinder head is provided with without edge cover oil injector hole, its improvements are to be provided with water hole at cylinder head bottom and the position that oil injector hole is close, in upper water hole, press-fit nozzle weldment, the nozzle direction of nozzle weldment is towards oil sprayer hole wall, the external port of nozzle weldment flushes with cylinder head bottom surface, and aims at plane water hole on engine body.
Described nozzle weldment is welded by nozzle and outer end cover, the Way out of nozzle and Way in angle α=90
0～100
0, nozzle bore is 3～5mm; Described nozzle weldment becomes interference fit with the upper water hole of cylinder head.
The utility model increases nozzle weldment in cylinder head bottom, by the water hole on diesel-engine body, introduces cooling water, aims at without edge cover oil sprayer hole wall and sprays, and has improved the cooling effect of oil sprayer, avoids breaking down because of temperature rise.The utility model is simple in structure, and processing and assembling is easy, has compared structure of mosaic, is significantly reduced to this, and weldment is pressed into cylinder head, one-tenth interference fit, good reliability.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is nozzle weldment schematic diagram.
Embodiment
Referring to accompanying drawing, the position that the bottom of cylinder head 2 and oil injector hole 3 are close is provided with water hole, press-fits oil sprayer weldment 1 in upper water hole, and weldment 1 external port flushes with cylinder head bottom surface, and aims at the water hole of plane on engine body.Weldment 1 is welded by nozzle 1-1 and outer end cover 1-2, jet expansion direction and Way in angle α=95
0, oil sprayer hole wall, nozzle bore d=4mm are aimed in outlet.
Claims (3)
1. one kind is overlapped cylinder cap fuel injector hole cooling structure without edge, cylinder head is provided with without edge cover oil injector hole, it is characterized in that being provided with water hole at cylinder head bottom and the position that oil injector hole is close, in upper water hole, press-fit nozzle weldment, the nozzle direction of nozzle weldment is towards oil sprayer hole wall, the external port of nozzle weldment flushes with cylinder head bottom surface, and aims at the upper plane water hole of engine body.
2. according to claim 1 without edge cover cylinder cap fuel injector hole cooling structure, it is characterized in that: described nozzle weldment is welded by nozzle and outer end cover, the Way out of nozzle and Way in angle α=90
0～100
0, nozzle bore is 3～5mm.
3. according to claim 1 without edge cover cylinder cap fuel injector hole cooling structure, it is characterized in that: described nozzle weldment becomes interference fit with the upper water hole of cylinder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703861.7U CN203559995U (en) | 2013-11-11 | 2013-11-11 | Cooling structure for bushing-free fuel injector hole of cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703861.7U CN203559995U (en) | 2013-11-11 | 2013-11-11 | Cooling structure for bushing-free fuel injector hole of cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559995U true CN203559995U (en) | 2014-04-23 |
Family
ID=50509721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320703861.7U Expired - Lifetime CN203559995U (en) | 2013-11-11 | 2013-11-11 | Cooling structure for bushing-free fuel injector hole of cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559995U (en) |
-
2013
- 2013-11-11 CN CN201320703861.7U patent/CN203559995U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |