CN201100180Y - A four-gate jar cover for small jar diameter diesel - Google Patents
A four-gate jar cover for small jar diameter diesel Download PDFInfo
- Publication number
- CN201100180Y CN201100180Y CNU2007200290264U CN200720029026U CN201100180Y CN 201100180 Y CN201100180 Y CN 201100180Y CN U2007200290264 U CNU2007200290264 U CN U2007200290264U CN 200720029026 U CN200720029026 U CN 200720029026U CN 201100180 Y CN201100180 Y CN 201100180Y
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- diesel engine
- intake
- intake duct
- valve port
- cylinder
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Abstract
The utility model relates to a four-valve cylinder cover of a diesel engine with small cylinder diameter and belongs to the technical field of diesel engine accessory devices, which is particularly applicable for diesel engines whose cylinder diameters are within 100. The four-valve cylinder cover of the diesel engine with small cylinder diameter is characterized in that the four-valve cylinder cover comprises an intake 1, an intake 3, and an intake port 4 and an intake port 6 which are respectively and relatively communicated with the intake 1 and the intake 3. A fuel injector mounting hole 5 is perpendicularly arranged in the right center of the cylinder, an exhaust valve 9 and an exhaust valve 10 are arranged on the sides of the intake port 4 and the intake port 6, an exhaust passage 8 is arranged on the opposite side of the intake which is provided with a cooling jet orifice 2 which is communicated with the water chamber of the diesel engine in the air intake nose bridge area of the intake for cooling the nose bridge area from the side of the air intake. The air exhausting nose bridge area of the exhaust passage is provided with a cooling jet orifice 7 which is communicated with the water chamber of the diesel engine, and the middle portion of the cylinder is further provided with a heater plug mounting hole 11 for mounting a diesel engine heater plug. The utility model is applicable for the diesel engines with small cylinder diameters such as 2, 3, 4, 6 and the like, the structure has the advantages of compact structure, great manufacturability and high intensity, and can effectively increase the performances and the discharging level of the diesel engines.
Description
One, technical field:
The utility model relates to a kind of small-bore diesel engine four valve cylinder head, belongs to diesel engine part device technique field, be particularly suitable for cylinder diameter 100 with interior small-bore diesel engine.
Two, technical background
At diesel engine---especially in the small-bore diesel engine technical field; every cylinder two air valve structures are by widespread usage; this structure has simple in structure; manufacturing process is simple; organize advantages such as air inlet is easy; but along with the worsening shortages of science and technology development, the world oil energy, the reinforcement day by day of environmental protection; to the Economy of diesel engine and the requirement strictness day by day of discharging; and traditional every cylinder two air valve structures; owing to be subjected to getting the restriction of air inflow; become the bottle footpath that the restriction diesel engine performance improves, can't satisfy the requirement of higher Economy and emission level.
Three, summary of the invention
The purpose of this utility model is to design a kind of little cylinder diameter (cylinder diameter is below 100m) diesel engine that is suitable for, and the air inflow of diesel engine strengthens, thereby makes the Economy of diesel engine and the small-bore diesel engine four valve cylinder head that emission level improves.
Principle of the present utility model and key problem in technology are the structures that single cylinder is arranged two air inlet two exhaust valves respectively, can effectively improve the charging efficiency of diesel engine, improve air fuel ratio, the fuel oil that diesel engine is made spray in the cylinder in the power stroke process mixes with sufficient air, make burning more complete, the structure of two exhaust valves of single cylinder in addition, further reduced the exhaust back pressure of diesel engine, make more thorough that diesel exhaust gets rid of, so two intake valves of single cylinder and two exhaust valve structures are arranged Economy and the emission level that effectively raises diesel engine; The cylinder head single cylinder is arranged two inlet valve ports and two exhaust valve ports, and arrange that in the limited space of cylinder liner air flue is connected with four valves respectively, and arrange the cooling spray orifice in cold starting heater plug mounting hole, mounting hole of oil sprayer and cooling bridge of the nose district simultaneously, because the space of small-bore diesel engine cylinder liner is limited, the therefore above key that is arranged as little cylinder diameter four valve cylinder head design.
Technical solution of the present utility model is as follows:
A kind of small-bore diesel engine four valve cylinder head, special way is to comprise intake duct 1, intake duct 3, and corresponding with it respectively inlet valve port 4, the inlet valve port 6 that communicates, mounting hole of oil sprayer 5 is vertical at the positive center of cylinder, exhaust valve port 9, exhaust valve port 10 are located at a side of inlet valve port 4, inlet valve port 6, air outlet flue 8 is located at the opposite side of intake duct, and intake duct air inlet bridge of the nose district is provided with the cooling spray orifice 2 that communicates with the diesel engine water cavity, is used for from air inlet side cooling bridge of the nose district; Air outlet flue exhaust bridge of the nose district is provided with the cooling spray orifice 7 that communicates with the diesel engine water cavity, is used for from exhaust side cooling bridge of the nose district; Cylinder middle part also is provided with and is used for the heater plug mounting hole 11 of mounting diesel engine heater plug, guarantees the cold starting effect under the diesel engine low-temperature condition;
Described intake duct 1 and intake duct 3 are parallel-connection structure, and exhaust valve port 9 and exhaust valve port 10 communicate with air outlet flue 8, form the cascaded structure of air outlet flue;
Described intake duct 1 is a tangential admission, and intake duct 3 is a spirally inlet air.
A kind of small-bore diesel engine four valve cylinder head of the present utility model, effectively improve the charging efficiency of diesel engine, improve air fuel ratio, make burning more complete, further reduced the exhaust back pressure of diesel engine, make the more thorough of diesel exhaust eliminating, effectively raise the Economy and the emission level of diesel engine; Save the space of cylinder liner, be particularly useful for the small-bore diesel engine cylinder liner.
Four, description of drawings:
Fig. 1: be the bottom view of a kind of small-bore diesel engine four valve cylinder head of the utility model;
Fig. 2: the J-J sectional view among Fig. 1;
Fig. 3: the A-A sectional view among Fig. 1;
Fig. 4: the S-S sectional view among Fig. 1;
Fig. 5: the D-D sectional view among Fig. 1;
Among the figure: 1, intake duct, 2, the cooling spray orifice, 3, intake duct, 4, inlet valve port, 5, mounting hole of oil sprayer, 6, inlet valve port, 7, the cooling spray orifice, 8, air outlet flue, 9, exhaust valve port, 10, exhaust valve port, 11, the heater plug mounting hole.
Five, embodiment
Below in conjunction with accompanying drawing the utility model is further described:
A kind of small-bore diesel engine four valve cylinder head, comprise intake duct 1, intake duct 3, and corresponding with it respectively inlet valve port 4, the inlet valve port 6 that communicates, mounting hole of oil sprayer 5 is vertical at the positive center of cylinder, exhaust valve port 9, exhaust valve port 10 are located at a side of inlet valve port 4, inlet valve port 6, air outlet flue 8 is located at the opposite side of intake duct, and intake duct air inlet bridge of the nose district is provided with the cooling spray orifice 2 that communicates with the diesel engine water cavity, is used for from air inlet side cooling bridge of the nose district; Air outlet flue exhaust bridge of the nose district is provided with the cooling spray orifice 7 that communicates with the diesel engine water cavity, is used for from exhaust side cooling bridge of the nose district; Cylinder middle part also is provided with and is used for the heater plug mounting hole 11 of mounting diesel engine heater plug, guarantees the cold starting effect under the diesel engine low-temperature condition; Intake duct 1 and intake duct 3 are parallel-connection structure, and exhaust valve port 9 and exhaust valve port 10 communicate with air outlet flue 8, form the cascaded structure of air outlet flue, and intake duct 1 is a tangential admission, and intake duct 3 is a spirally inlet air.
A kind of small-bore diesel engine four valve cylinder head of the foregoing description, be suitable for cylinder diameters such as 2,3,4,6 100 with interior small-bore diesel engine, this structure has compact structure, good manufacturability, the advantage that intensity is high can effectively be carried the performance and the emission level of diesel engine.
Claims (3)
1, a kind of small-bore diesel engine four valve cylinder head, be characterised in that and comprise intake duct (1), intake duct (3), and corresponding with it respectively inlet valve port (4), the inlet valve port (6) that communicates, mounting hole of oil sprayer (5) is vertical at the positive center of cylinder, exhaust valve port (9), exhaust valve port (10) are located at a side of inlet valve port (4), inlet valve port (6), air outlet flue (8) is located at the opposite side of intake duct, intake duct air inlet bridge of the nose district is provided with the cooling spray orifice (2) that communicates with the diesel engine water cavity, is used for from air inlet side cooling bridge of the nose district; Air outlet flue exhaust bridge of the nose district is provided with the cooling spray orifice (7) that communicates with the diesel engine water cavity, is used for from exhaust side cooling bridge of the nose district; Cylinder middle part is provided with and is used for the heater plug mounting hole (11) of mounting diesel engine heater plug.
2, according to the described a kind of small-bore diesel engine four valve cylinder head of claim 1, it is characterized in that described intake duct (1) and intake duct (3) are parallel-connection structure, exhaust valve port (9) and exhaust valve port (10) communicate with air outlet flue (8), form the cascaded structure of air outlet flue.
3, according to the described a kind of small-bore diesel engine four valve cylinder head of claim 1, it is characterized in that described intake duct (1) is a tangential admission, intake duct (3) is a spirally inlet air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200290264U CN201100180Y (en) | 2007-10-15 | 2007-10-15 | A four-gate jar cover for small jar diameter diesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200290264U CN201100180Y (en) | 2007-10-15 | 2007-10-15 | A four-gate jar cover for small jar diameter diesel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201100180Y true CN201100180Y (en) | 2008-08-13 |
Family
ID=39936714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200290264U Expired - Lifetime CN201100180Y (en) | 2007-10-15 | 2007-10-15 | A four-gate jar cover for small jar diameter diesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201100180Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312748A (en) * | 2010-07-07 | 2012-01-11 | 广西玉柴机器股份有限公司 | Cylinder cover of diesel engine |
| CN102900558A (en) * | 2012-10-22 | 2013-01-30 | 王志辉 | Single-cylinder diesel cylinder cover |
| CN103016190A (en) * | 2013-01-05 | 2013-04-03 | 安徽江淮汽车股份有限公司 | Cylinder cover for turbo-charged diesel engine |
| CN111075591A (en) * | 2020-01-09 | 2020-04-28 | 中国重汽集团济南动力有限公司 | Cylinder cover water cavity assembly with bushing |
-
2007
- 2007-10-15 CN CNU2007200290264U patent/CN201100180Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312748A (en) * | 2010-07-07 | 2012-01-11 | 广西玉柴机器股份有限公司 | Cylinder cover of diesel engine |
| CN102900558A (en) * | 2012-10-22 | 2013-01-30 | 王志辉 | Single-cylinder diesel cylinder cover |
| CN103016190A (en) * | 2013-01-05 | 2013-04-03 | 安徽江淮汽车股份有限公司 | Cylinder cover for turbo-charged diesel engine |
| CN111075591A (en) * | 2020-01-09 | 2020-04-28 | 中国重汽集团济南动力有限公司 | Cylinder cover water cavity assembly with bushing |
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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: 20080813 |