CN201705485U - Environmental protection type single-cylinder direct injection diesel engine air cylinder cover - Google Patents
Environmental protection type single-cylinder direct injection diesel engine air cylinder cover Download PDFInfo
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- CN201705485U CN201705485U CN2010202536275U CN201020253627U CN201705485U CN 201705485 U CN201705485 U CN 201705485U CN 2010202536275 U CN2010202536275 U CN 2010202536275U CN 201020253627 U CN201020253627 U CN 201020253627U CN 201705485 U CN201705485 U CN 201705485U
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Abstract
The utility model relates to an environmental protection type single-cylinder direct injection diesel engine air cylinder cover. An air inlet hole, an exhaust hole and an oil sprayer hole are arranged on the upper plane of the cylinder cover, and the oil sprayer hole extends in the inclined direction towards the lower plane of the cylinder cover for forming an oil spray hole passage. When a three-dimensional coordinate is established by using the center of the upper plane of the cylinder cover as the origin, the centers of the air inlet hole and the exhaust hole are respectively positioned at both sides of the Y axis of the coordinate axis, the center connecting line of the air inlet hole and the exhaust hole is parallel to the X axis of the coordinate axis, the distance a from the center connecting line to the X axis is between 6 and 8mm, distances b and c from the centers of the air inlet hole to the Y axis are respectively between 21 and 22mm and between 24 and 25mm, a distance d from the center of the oil sprayer hole to the X axis is between 6 and 7mm, a distance e from the center of the oil sprayer hole to the Y axis is between 2 and 2.7mm, and an acute angle f between the central axis of the oil spray hole passage and the perpendicular line of the upper plane and the lower plane of the cylinder cover is between 19 degrees and 22 degrees. The mixing quality of the air and the fuel in a combustion chamber can be improved, the combustion efficiency can be improved, and the oil consumption and the emission can be reduced.
Description
Technical field
The utility model relates to a kind of cylinder head of diesel engine, especially relates to a kind of environment protection type single-cylinder direct-injection diesel engine cylinder head.
Background technique
At present, with regard to burning chamber of diesel engine, diesel engine can be divided into dissimilar diesel engines such as vortex type, preheating type, direct spray type and combined type, wherein, the characteristics of direct injection diesel engine are that the firing chamber directly processes on piston head, is useful on the duct that is installed into valve, exhaust valve and oil sprayer on its cylinder head.During diesel engine work, produce eddy current and then mix also combustion driven piston motion mutually through the air that intake valve enters cylinder with the oil bundle that sprays through the oil sprayer spray orifice by spiral air inlet or tangential air flue.Whether the power character of diesel engine, Economy and exhaust index well have direct inseparable relation with the mixing quality of above-mentioned air and fuel.And the spatial position that each duct distributes on the cylinder head, i.e. the mounting point of exhaust valve, intake valve, oil sprayer, the setting angle of oil sprayer plays an important role with the situation of mixing of fuel to above-mentioned air.
Summary of the invention
Technical problem to be solved by this invention provides and a kind ofly can make air and the well-mixed single cylinder direct injection diesel engine of fuel cylinder head.
The present invention solves the technological scheme that its technical problem takes: a kind of environment protection type single cylinder direct injection diesel engine cylinder head, the plane is provided with inlet hole on the cylinder cap, exhaust port and oil injector hole, oil injector hole is to the oblique oil spout duct that extends to form of cylinder cap lower plane, if with planar central on the cylinder cap is that initial point is set up two-dimensional coordinate, advance, the coordinate axes Y-axis both sides, office, center of exhaust port, advance, the line of centres of exhaust port is parallel with the coordinate axes X-axis, then this line of centres is 6～8mm to X-axis apart from a, advance, the center of exhaust port is to the distance b of Y-axis, c is respectively 21～22mm and 24～25mm, the center of described oil injector hole is 6～7mm to X-axis apart from d, to Y-axis be 2～2.7mm apart from e, on the central axis and cylinder cap in oil spout duct, the folded acute angle f of the vertical line of lower plane is 19 °～22 °.
Passing through long test, technical solution adopted in the utility model further is optimized for: the line of centres in described inlet and outlet hole is 6.0mm to X-axis apart from a, the center in inlet and outlet hole is respectively 21.5mm and 24.5mm to distance b, the c of Y-axis, the center of described oil injector hole is 6.2mm to X-axis apart from d, to Y-axis be 2.5mm apart from e, the folded acute angle f of the central axis in described oil spout duct and the vertical line on the upper and lower plane of cylinder cap is 20 °.
Adopt after the above-mentioned improved technological scheme, the adjustment at the mutual mounting point of inlet and outlet hole, oil injector hole and the angle of inclination in oil spout duct, significantly improve the mixing quality of burning indoor air and fuel, improved combustion efficiency, reduced oil consumption and discharging.
Description of drawings
Fig. 1 is a main TV structure schematic representation of the present utility model;
Fig. 2 cuts open structural representation for side of the present utility model.
1. cylinder cap 2. inlet holes 3. exhaust ports 4. oil injector holes 5. oil spout ducts
Embodiment
A kind of as depicted in figs. 1 and 2 environment protection type single cylinder direct injection diesel engine cylinder head, the plane is provided with inlet hole 2 on the cylinder cap 1, exhaust port 3 and oil injector hole 4, oil injector hole 4 is to the oblique oil spout duct 5 that extends to form of cylinder cap 1 lower plane, if with planar central on the cylinder cap 1 is that initial point is set up two-dimensional coordinate, advance, the coordinate axes Y-axis both sides, office, center of exhaust port, advance, the line of centres of exhaust port is parallel with the coordinate axes X-axis, then this line of centres is 6～8mm to X-axis apart from a, advance, the center of exhaust port is to the distance b of Y-axis, c is respectively 21～22mm and 24～25mm, the center of described oil injector hole 4 is 6～7mm to X-axis apart from d, to Y-axis be 2～2.7mm apart from e, on the central axis in oil spout duct 5 and the cylinder cap 1, the folded acute angle f of the vertical line of lower plane is 19 °～22 °.
Passed through test of many times, the center in each hole of the utility model further is defined as to the distance of X-axis Y-axis: the line of centres in inlet and outlet hole is 6.0mm to X-axis apart from a, the center in inlet and outlet hole is respectively 21.5mm and 24.5mm to distance b, the c of Y-axis, the center of oil injector hole 4 is 6.2mm to X-axis apart from d, to Y-axis be 2.5mm apart from e, the folded acute angle f of the vertical line on the central axis in oil spout duct 5 and cylinder cap 1 upper and lower plane is 20 °.
Adopted after the present embodiment, said structure can better make air mix with mist of oil, and fully burning when same oily of burning, can make machine do more merit, reduces the harmful gas of discharging, reduces oil consumption, can effectively protect environment.
Claims (2)
1. environment protection type single cylinder direct injection diesel engine cylinder head, cylinder cap (1) is gone up the plane and is provided with inlet hole (2), exhaust port (3) and oil injector hole (4), oil injector hole (4) is to the oblique oil spout duct (5) that extends to form of cylinder cap (1) lower plane, it is characterized in that: if go up planar central with cylinder cap (1) is that initial point is set up two-dimensional coordinate, advance, the coordinate axes Y-axis both sides, office, center of exhaust port, advance, the line of centres of exhaust port is parallel with the coordinate axes X-axis, then this line of centres is 6～8mm to X-axis apart from a, advance, the center of exhaust port is to the distance b of Y-axis, c is respectively 21～22mm and 24～25mm, the center of described oil injector hole (4) is 6～7mm to X-axis apart from d, to Y-axis be 2～2.7mm apart from e, on the central axis of oil spout duct (5) and the cylinder cap (1), the folded acute angle f of the vertical line of lower plane is 19 °～22 °.
2. environment protection type single cylinder direct injection diesel engine cylinder head according to claim 1, it is characterized in that: the line of centres in described inlet and outlet hole is 6.0mm to X-axis apart from a, the center in inlet and outlet hole is respectively 21.5mm and 24.5mm to distance b, the c of Y-axis, the center of described oil injector hole (4) is 6.2mm to X-axis apart from d, to Y-axis be 2.5mm apart from e, the folded acute angle f of the vertical line on the central axis in described oil spout duct (5) and the upper and lower plane of cylinder cap (1) is 20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202536275U CN201705485U (en) | 2010-07-08 | 2010-07-08 | Environmental protection type single-cylinder direct injection diesel engine air cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202536275U CN201705485U (en) | 2010-07-08 | 2010-07-08 | Environmental protection type single-cylinder direct injection diesel engine air cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705485U true CN201705485U (en) | 2011-01-12 |
Family
ID=43442639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202536275U Expired - Fee Related CN201705485U (en) | 2010-07-08 | 2010-07-08 | Environmental protection type single-cylinder direct injection diesel engine air cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705485U (en) |
-
2010
- 2010-07-08 CN CN2010202536275U patent/CN201705485U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20160708 |