CN203296947U - Single cylinder diesel cylinder head with shape of air inlet duct changed and position of oil atomizer hole changed - Google Patents
Single cylinder diesel cylinder head with shape of air inlet duct changed and position of oil atomizer hole changed Download PDFInfo
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- CN203296947U CN203296947U CN2013203420693U CN201320342069U CN203296947U CN 203296947 U CN203296947 U CN 203296947U CN 2013203420693 U CN2013203420693 U CN 2013203420693U CN 201320342069 U CN201320342069 U CN 201320342069U CN 203296947 U CN203296947 U CN 203296947U
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- cylinder
- cylinder head
- hole
- air inlet
- oil
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Abstract
The utility model discloses a single cylinder diesel cylinder head with the shape of an air inlet duct changed and the position of an oil atomizer hole changed and relates to diesels. The air inlet duct of the cylinder head is designed to be spiral, the sectional area of the air inlet duct is increased, the length of the air inlet duct is reduced, and the air inflow is increased. The central position of an oil atomizer orifice is arranged in the X-axis direction, and deviates from the Y-axis central line of the cylinder head for 1.7-1.9 meters towards one side of the air inlet duct. The central position of the oil atomizer orifice deviates from the X-axis central line of the cylinder head for 5.4-5.6 meters towards one side far away from the air inlet duct and an air outlet duct in the Y-axis direction. The included angle between the oil atomizer hole and the central line of a cylinder is 19-21 degrees. Due to the fact that the central position of the oil atomizer hole and the axial included angle between the oil atomizer hole and the cylinder are changed, the spraying hole of an oil atomizer is matched with a combustion chamber more reasonably, the mixing uniformity of fuel spray and air is improved, combustion is more sufficient, oil consumption is reduced, and the discharging of contaminants is reduced.
Description
Technical field
The utility model relates to a kind of cylinder cap of single-cylinder diesel engine.The cylinder cap of single-cylinder diesel engine that is specifically related to adopt the novel air inlet path structure and rearranges the oil injector hole position.
Background technique
Present domestic single cylinder diesel, fuel consumption rate is high, and pollutant discharge amount is high, serious environment pollution.Wherein one of reason is exactly that the cylinder cover for diesel engine design is unreasonable.Be in particular in: 1, air inflow is on the low side, and air inlet terminal gas pressure is low.2, fuel injection angle degree and firing chamber coupling are unreasonable, and fuel oil mixes inhomogeneous with air, and combustion position is bad.Cause that engine fuel consumption is high, pollutant discharge amount is high.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of cylinder cap of single-cylinder diesel engine that changes intake duct shape and oil injector hole position, by cylinder head Design of Inlet curl, strengthens the sectional area of intake duct, shortens the length of air flue, increases air inflow; Change position and oil injector hole and the cylinder centerline angle at center, oil sprayer aperture, improve the air inlet terminal pressure, improve the mixture homogeneity of fuel spray and air, make burning more abundant.
The utility model is achieved by the following technical solution: a kind of cylinder cap of single-cylinder diesel engine that changes intake duct shape and oil injector hole position, described cylinder cap of single-cylinder diesel engine is cast iron casing shape cylinder head, on described cylinder head, make four bolts hole, cylinder head is arranged on diesel-engine body with bolt by bolt hole.Cooling water channel, intake duct, air outlet flue and oil injector hole are set on cylinder head.Described oil injector hole outlet port is the oil sprayer aperture.Described oil sprayer aperture is positioned at the position of intake duct and air outlet flue upper middle.Between the center line of described oil injector hole and cylinder centerline, angle is arranged; It is characterized in that: central position, described oil sprayer aperture and cylinder head X-axis center line have the deviation value I; Central position, oil sprayer aperture and cylinder head Y-axis center line have the deviation value II; Described deviation value I is 5.4mm to 5.6mm; Described deviation value II is 1.7mm to 1.9mm; Described oil injector hole and cylinder centerline angle are that 19 degree are to 21 degree.
2, the cylinder cap of single-cylinder diesel engine of change intake duct shape according to claim 1 and oil injector hole position is characterized in that: described intake duct (5) is spirality channel.
Technique effect of the present utility model:
1, helical intake duct, the sectional area of increase intake duct, improve air inlet terminal pressure and air-flow rotational speed, increases air inflow.
2, change position and oil injector hole and the cylinder centerline angle in oil sprayer aperture, make it more reasonable with the firing chamber coupling, the mist of oil of air and oil sprayer ejection mixes more even, burns more abundant, reduces oil consumption, reduces the pollution of tail gas to environment.
3, simple in structure, easy to make, be convenient to promote the use of.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the B-B sectional drawing of Fig. 2.
In figure: 1, cylinder head, 2, bolt hole, 3, cooling water channel, 4, oil sprayer aperture, 5, intake duct, 6, air outlet flue, 7, oil injector hole, 8, cylinder head X-axis center line, 9, cylinder head Y-axis center line, 10, cylinder centerline, the angle of d, oil injector hole 7 and cylinder centerline 10, a, deviation value I, b, deviation value II.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is elaborated:
As shown in Figure 1, Figure 2, Figure 3 shows: a kind of cylinder cap of single-cylinder diesel engine that changes intake duct shape and oil injector hole position, described cylinder cap of single-cylinder diesel engine is cast iron casing shape cylinder head 1, on described cylinder head 1, make four bolts hole 2, cylinder head 1 is arranged on diesel-engine body by bolt hole 2 use bolts.Cooling water channel 3, intake duct 5, air outlet flue 6 and oil injector hole 7 are set on cylinder head 1.Described oil injector hole 7 outlet ports are oil sprayer aperture 4, and described oil sprayer aperture 4 is positioned at the position of intake duct 5 and air outlet flue 6 upper middles.Between the center line of described oil injector hole 7 and cylinder centerline 10, angle d is arranged.It is characterized in that: 4 central positions, described oil sprayer aperture and cylinder head X-axis center line 8 have deviation value I a; 4 central positions, oil sprayer aperture and cylinder head Y-axis center line 9 have deviation value II b; Described deviation value I a is 5.4mm to 5.6mm; Described deviation value II b is 1.7mm to 1.9mm; Described oil injector hole and cylinder centerline angle d are that 19 degree are to 21 degree.Change oil injector hole 7 and cylinder centerline angle d, make oil injector hole 7 more reasonable with the firing chamber coupling, the mist of oil of air and oil sprayer ejection mixes more even, burns more abundant, reduces oil consumption, reduces the pollution of tail gas to environment.
Described intake duct 5 is spirality channel, increases the sectional area of intake duct, makes more air enter cylinder, improves air inlet terminal pressure and air-flow rotational speed.
Claims (2)
1. one kind changes intake duct shape and spray
OilThe cylinder cap of single-cylinder diesel engine of device hole site, described cylinder cap of single-cylinder diesel engine is cast iron casing shape cylinder head (1), upper four bolts hole (2) of making of described cylinder head (1), cylinder head (1) is arranged on diesel-engine body with bolt by bolt hole (2); Cooling water channel (3), intake duct (5), air outlet flue (6) and oil injector hole (7) are set on cylinder head (1); Described oil injector hole (7) outlet port is oil sprayer aperture (4); Described oil sprayer aperture (4) is positioned at the position of intake duct (5) and air outlet flue (6) upper middle; Between the center line of described oil injector hole (7) and cylinder centerline (10), angle (d) is arranged; It is characterized in that: (4) central position, described oil sprayer aperture and cylinder head X-axis center line (8) have deviation value I (a); (4) central position, oil sprayer aperture and cylinder head Y-axis center line (9) have deviation value II (b); Described deviation value I (a) is 5.4mm to 5.6mm; Described deviation value II (b) is 1.7mm to 1.9mm; Described oil injector hole and cylinder centerline angle (d) are that 19 degree are to 21 degree.
2. the cylinder cap of single-cylinder diesel engine of change intake duct shape according to claim 1 and oil injector hole position, it is characterized in that: described intake duct (5) is spirality channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203420693U CN203296947U (en) | 2013-06-14 | 2013-06-14 | Single cylinder diesel cylinder head with shape of air inlet duct changed and position of oil atomizer hole changed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203420693U CN203296947U (en) | 2013-06-14 | 2013-06-14 | Single cylinder diesel cylinder head with shape of air inlet duct changed and position of oil atomizer hole changed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203296947U true CN203296947U (en) | 2013-11-20 |
Family
ID=49572961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203420693U Expired - Fee Related CN203296947U (en) | 2013-06-14 | 2013-06-14 | Single cylinder diesel cylinder head with shape of air inlet duct changed and position of oil atomizer hole changed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203296947U (en) |
-
2013
- 2013-06-14 CN CN2013203420693U patent/CN203296947U/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: 20131120 Termination date: 20180614 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |