CN201705487U - Cylinder head valve distributing structure of air-cooled diesel engine - Google Patents
Cylinder head valve distributing structure of air-cooled diesel engine Download PDFInfo
- Publication number
- CN201705487U CN201705487U CN2010201693442U CN201020169344U CN201705487U CN 201705487 U CN201705487 U CN 201705487U CN 2010201693442 U CN2010201693442 U CN 2010201693442U CN 201020169344 U CN201020169344 U CN 201020169344U CN 201705487 U CN201705487 U CN 201705487U
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- cylinder head
- valve
- diesel engine
- air
- intake
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Abstract
The utility model relates to a cylinder head valve distributing structure of an air-cooled diesel engine; an air inlet and an exhaust passage on the cylinder head of the diesel engine are respectively arranged on the two opposite sides of the cylinder head; the coaxial direction of the bent axle of the diesel engine is same with the gas inlet and exhaust direction; a central connecting line between an intake valve arranged on the air inlet and an exhaust valve arranged on the exhaust passage is obliquely staggered with the coaxial direction of the bent axle to form an included angle; the cylinder head is provided with a plurality of cooling air flues; wherein a left cooling air flue penetrates the left solid of the exhaust valve; a right cooling air flue penetrates the right solid of the inlet valve; a middle cooling air flue penetrates a solid between the exhaust valve and the inlet valve; and the air inlet end of the cooling air flue is corresponding with a wind scooper arranged on the diesel engine. The cylinder head valve distributing structure of the air-cooled diesel engine leads the central connecting line between the intake valve and the exhaust valve to be obliquely staggered with the coaxial direction of the coaxial direction to form an included angle; the periphery of the intake valve and the exhaust valve can be effectively cooled, which not only can guarantee the motion balance of the intake valve and the exhaust valve, improves the performance of the diesel engine, but also can improve the integral cooling effect of the cylinder head.
Description
Technical field
The utility model relates to the small air-cooled diesel engine field, is specifically related to a kind of valve arrangement structure for cylinder head of air-cooled diesel engine.
Background technique
Usually, the layout of the intake valve of cylinder head and exhaust valve in the small air-cooled diesel engine is the straight line that is parallel to crankshaft center line along, and the line of centres of intake valve, exhaust valve is parallel with crankshaft center line, and two the projection of line is overlapping, and the cooling duct of setting passes through in the intake valve place.It is the cylinder head entity part that this structure makes between intake valve and the exhaust valve, cooling air carries out wind cooling temperature lowering from the entity that cooling duct to intake valve forms the intake valve place, but, because exhaust valve and intake valve are point-blank, exhaust valve is positioned at the back of intake valve, after cooling air cools off the intake valve place, walking around exhaust valve flows out, because exhaust valve is in the back of intake valve, the exhaust valve near zone almost becomes the cooling dead angle, can't effectively be cooled, the whole cooling effect of cylinder head is had a strong impact on.Cause thus existing air-cooled diesel engine the inlet and outlet door cool unbalancedly, the difference of valve motion increases, the performance of diesel engine is affected.
Summary of the invention
The purpose of this utility model provides a kind of valve arrangement structure for cylinder head of air-cooled diesel engine, it is by changing the layout of inlet and outlet door on cylinder head, make the line of centres between the inlet and outlet door and the axial oblique angle that is staggered to form of bent axle, cooling duct can be passed between the inlet and outlet door and both sides, can both effectively be cooled off around making inlet and outlet door place, can guarantee the motion equilibrium of inlet and outlet door, improve the performance of diesel engine, can improve the whole cooling effect of cylinder head again.
The purpose of this utility model is achieved in that the intake duct on the diesel engine cylinder head lays respectively at the relative both sides of cylinder head with air outlet flue, the bent axle of diesel engine axially and the intake and exhaust direction in the same way, be located at the intake valve of intake duct and be located at the line of centres between the exhaust valve of air outlet flue and the axial oblique angle that is staggered to form of bent axle, cylinder head is provided with a plurality of cooling ducts that run through the cylinder head entity part along the intake and exhaust direction, wherein left cooling duct runs through exhaust valve left side entity, right cooling duct runs through intake valve right side entity, middle cooling duct runs through entity between exhaust valve and intake valve, the wind scooper that is provided with on the corresponding diesel engine of the air intake of cooling duct.
The axial oblique angle that is staggered to form of the line of centres between intake valve and the exhaust valve and bent axle is 10 °～80 °.
The air intake of described left cooling duct and middle cooling duct is a common intake grill, and outlet air end is respectively exhaust outlet separately.
Cooling duct passes after turning in the exhaust valve place in described.
Described right cooling duct is between the tappet chamber of intake valve and cylinder head.
Owing to adopt technique scheme, be located at the intake valve of intake duct and be located at the line of centres between the exhaust valve of air outlet flue and the axial oblique angle that is staggered to form of bent axle, intake valve departs from the projection line above the crankshaft center line on being provided with like this, make and had the position that can be provided with between intake valve and the exhaust valve along the axially extended middle cooling duct of bent axle, and make the line of centres and bent axle between intake valve and the exhaust valve axially oblique staggered, help the casting or the boring processing of the axially extended cooling duct of cylinder head upper edge bent axle, make the moulding in air channel or processing be more prone to realize.Cylinder head is provided with and a plurality ofly runs through the cooling duct of cylinder head entity part along the intake and exhaust direction, and wherein left cooling duct runs through exhaust valve left side entity, and right cooling duct runs through intake valve right side entity, and middle cooling duct runs through entity between exhaust valve and intake valve.Can make cooling air pass cylinder head thus from three cooling ducts, between the inlet and outlet door and both sides are cooled off, intake valve, exhaust valve can both effectively be cooled off on every side, eliminate the wind cooling temperature lowering blind spot that can not get cooling off around original air-cooled diesel engine exhaust valve, greatly improved the whole cooling effect of cylinder head.
The air intake of especially left cooling duct and middle cooling duct is a common intake grill, and outlet air end is respectively exhaust outlet separately, can increase the air output of left cooling duct and middle cooling duct; And middle cooling duct passes after turning in the exhaust valve place, and the cooling air of cooling duct can directly arrive at the exhaust valve place in making, and the cooling at exhaust valve place is guaranteed, and can guarantee the motion equilibrium of inlet and outlet door thus, improves the performance of diesel engine.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is the cross-sectional view of the utility model cylinder head.
In the accompanying drawing, 1 is bent axle, and 2 is cylinder head, 3 is silencing apparatus, and 4 is starter, and 5 is empty filter, 6 is fuel tank, and 7 is wind scooper, and 8 is middle cooling duct, 9a is left cooling duct, and 9b is right cooling duct, and 10 is intake duct, 11 is air outlet flue, and 12 is air guide sleeve, and 13 is connecting bolt, 14 is exhaust valve, and 15 is intake valve, and 16 is the tappet chamber.
Embodiment
With reference to Fig. 1 and Fig. 2, valve arrangement structure for cylinder head of air-cooled diesel engine, diesel engine comprise crankcase body and cylinder head, and cylinder head is installed in the crankcase body top, cylinder head 2 entity part are provided with some mounting holes, pass mounting hole cylinder head and crankcase body connection by connecting bolt 13.Be provided with bent axle 1 in the crankcase body, bent axle 1 stretches out from the crankcase body side, the crankcase body left side is equipped with silencing apparatus 3, the right side is equipped with fuel tank 6, upside is equipped with starter 4 and empty filter 5, empty filter 5 is positioned at starter 4 tops, between empty filter 5 and the cylinder head 2 wind scooper 7 is installed, and wind scooper 7 drains into the cylinder head side to the cooling air that the wind wheel rotation forms.Have intake duct 10 and air outlet flue 11 on the diesel engine cylinder head 2, intake duct 10 lays respectively at the relative both sides of cylinder head with air outlet flue 11, the bent axle of diesel engine axially and the intake and exhaust direction in the same way.Intake duct 10 is communicated with empty filter 5, the air outlet flue 11 outer air guide sleeves 12 that are equipped with, and the heat transfer of cylinder head is to air guide sleeve, by cooling air cooling cooling.Intake duct 10 is provided with intake valve 15, air outlet flue 11 is provided with exhaust valve 14, be located at the intake valve 15 of intake duct and be located at the line of centres between the exhaust valve 14 of air outlet flue and the axial oblique angle α that is staggered to form of bent axle, make intake valve and exhaust valve avoid exhaust valve to be blocked over against air guide sleeve by intake valve.The axial oblique angle that is staggered to form of the line of centres between intake valve and the exhaust valve and bent axle is 10 °～80 °.Cylinder head 2 is provided with a plurality of cooling ducts that run through the cylinder head entity part along the intake and exhaust direction, wherein left cooling duct 9a runs through exhaust valve left side entity, right cooling duct 9b runs through intake valve right side entity, and right cooling duct 9b is between the tappet chamber 16 of intake valve and cylinder head.Middle cooling duct 8 runs through entity between exhaust valve and intake valve, middle cooling duct 8 passes after turning in the exhaust valve place, and the cooling air of cooling duct can directly arrive at the exhaust valve place in making.The air intake of described left cooling duct 9a and middle cooling duct 8 is a common intake grill, and outlet air end is respectively exhaust outlet separately, can increase the air output of left cooling duct and middle cooling duct.The wind scooper 7 that is provided with on the corresponding diesel engine of the air intake of cooling duct.Whole like this cylinder head entity part can access sufficient cooling.
During air-cooled diesel engine work, cooling air is drawn by wind scooper 7, part is via right cooling duct 9b cooling intake duct and tappet chamber, and part is by left cooling duct 9a cooling oil nozzle, air outlet flue, and another part runs through cylinder head entity between intake valve 15 and the exhaust valve 14 by middle cooling duct 8.Make whole cylinder head can access sufficient cooling.
Claims (5)
1. valve arrangement structure for cylinder head of air-cooled diesel engine, intake duct on the diesel engine cylinder head lays respectively at the relative both sides of cylinder head with air outlet flue, the bent axle of diesel engine axially and the intake and exhaust direction in the same way, it is characterized in that: be located at the intake valve of intake duct and be located at the line of centres between the exhaust valve of air outlet flue and the axial oblique angle that is staggered to form of bent axle, cylinder head is provided with a plurality of cooling ducts that run through the cylinder head entity part along the intake and exhaust direction, wherein left cooling duct runs through exhaust valve left side entity, right cooling duct runs through intake valve right side entity, middle cooling duct runs through entity between exhaust valve and intake valve, the wind scooper that is provided with on the corresponding diesel engine of the air intake of cooling duct.
2. valve arrangement structure for cylinder head of air-cooled diesel engine according to claim 1 is characterized in that: the axial oblique angle that is staggered to form of the line of centres between intake valve and the exhaust valve and bent axle is 10 °～80 °.
3. valve arrangement structure for cylinder head of air-cooled diesel engine according to claim 1 is characterized in that: the air intake of described left cooling duct and middle cooling duct is a common intake grill, and outlet air end is respectively exhaust outlet separately.
4. according to claim 1 or 3 described valve arrangement structure for cylinder head of air-cooled diesel engine, it is characterized in that: cooling duct passes after turning in the exhaust valve place in described.
5. valve arrangement structure for cylinder head of air-cooled diesel engine according to claim 1 is characterized in that: described right cooling duct is between the tappet chamber of intake valve and cylinder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201693442U CN201705487U (en) | 2010-04-26 | 2010-04-26 | Cylinder head valve distributing structure of air-cooled diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201693442U CN201705487U (en) | 2010-04-26 | 2010-04-26 | Cylinder head valve distributing structure of air-cooled diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705487U true CN201705487U (en) | 2011-01-12 |
Family
ID=43442641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201693442U Expired - Fee Related CN201705487U (en) | 2010-04-26 | 2010-04-26 | Cylinder head valve distributing structure of air-cooled diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818701A (en) * | 2010-04-26 | 2010-09-01 | 隆鑫工业有限公司 | Valve arrangement structure for cylinder head of air-cooled diesel engine |
-
2010
- 2010-04-26 CN CN2010201693442U patent/CN201705487U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818701A (en) * | 2010-04-26 | 2010-09-01 | 隆鑫工业有限公司 | Valve arrangement structure for cylinder head of air-cooled diesel engine |
| WO2011134380A1 (en) * | 2010-04-26 | 2011-11-03 | 隆鑫通用动力股份有限公司 | Cylinder head valve arrangement structure and air-cooled diesel engine including the same |
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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: 20110112 Termination date: 20150426 |
|
| EXPY | Termination of patent right or utility model |