CN201092896Y - Multi-cylinder diesel engine intensive cooling double-layer water channel integral cylinder cap - Google Patents
Multi-cylinder diesel engine intensive cooling double-layer water channel integral cylinder cap Download PDFInfo
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- CN201092896Y CN201092896Y CNU2007200767269U CN200720076726U CN201092896Y CN 201092896 Y CN201092896 Y CN 201092896Y CN U2007200767269 U CNU2007200767269 U CN U2007200767269U CN 200720076726 U CN200720076726 U CN 200720076726U CN 201092896 Y CN201092896 Y CN 201092896Y
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- water channel
- cylinder head
- cylinder
- diesel engine
- cooling
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Abstract
The utility model relates to a multi-cylinder diesel engine intensive cooling double layer water channel integral cylinder head, a fuel injector is installed in the middle of a diesel engine cylinder head, water channels in the cylinder head are divided into an upper layer and a lower layer which are separated by a diaphragm plate which is connected with a water channel inner wall surface in the middle, the double layer water channel is provided with a ring-shaped water hole on the position which is provided with the fuel injector in the middle of the cylinder head, the upper layer water channel and the lower layer water channel are communicated, neighboring cylinders are separated by a longitudinal plate of the lower layer water channel and are not transversely communicated. The upper layer water channel is integrally arranged on one side of a cylinder head exhaust passage and intensifies the cooling to the high temperature on the exhaust passage, which can prevent the cylinder head from appearing local hot spot phenomenon in particular for the lower layer water channel of the cylinder head, each cylinder is separated and is not affected each other, when cooling water flows through the ring-shaped water hole around the fuel injector, not only the cooling to the fuel injector is intensified, but also the proportionality of the cooling effects for each cylinder can be guaranteed, which enables the cylinder head to keep in a good thermal equilibrium condition and thereby guarantees normal operation of the diesel engine.
Description
One, technical field
The utility model relates to multi-cylinder diesel engine water cooling cylinder head.
Two, technical background
At present, along with the development of diesel technology, particularly along with the improving constantly of power and emission level, each diesel engine factory one after another by various means as improve boost pressure, injection pressure waits power and the emission level that promotes diesel engine.This a series of corrective measure causes indexs such as diesel engine pressure of explosion, power per liter more and more higher, the also corresponding increase of the mechanical load of engine component and heat load.The particularly application of many Valves Technology of diesel engine and electronic control technology, HP, hp/litre and mean effective pressure can reach a quite high level, and this just causes the heat load of motor also to improve thereupon.
In general, for the water cooling multi-cylinder diesel engine, cylinder head is directly born the effect of burning and pressure of explosion owing to its bottom surface as important component, intake and exhaust port all is positioned at cylinder head simultaneously, so the thermal shock duty ratio that cylinder head is born is more serious, simultaneously because functional component such as oil sprayer are installed on the cylinder head, the complex structure that causes cylinder head, so its water channel design, particularly how to improve intensity of cooling and guarantee that the harmony of each cylinder cooling is particularly important, because this plays crucial effects to diesel engine work reliability and complete machine thermal equilibrium.
Three, summary of the invention
The purpose of this utility model provides a kind of multi-cylinder diesel engine and cools off the Double-layer drain piece cylinder head by force.
To achieve these goals, the utility model adopts following design proposal: a kind of multi-cylinder diesel engine cools off the Double-layer drain piece cylinder head by force, oil sprayer is installed in the middle of the cylinder cover for diesel engine, the cylinder head cooling water channel is divided into two-layer up and down, the centre has the diaphragm that links to each other with the water channel internal face to separate, only around oil sprayer, adopt the annular water hole perforation that links to each other between upper strata water channel and the lower floor water channel, have midfeather to separate between the every cylinder of lower floor's water channel, separately do not connect.
Because the cylinder cover base water channel, separate between each cylinder and be independent of each other, cooling water flow can be strengthened the cooling to oil sprayer installing zone high temperature when the annular water hole around the oil sprayer.Upper strata water channel centralized arrangement can be strengthened the cooling to air outlet flue position high temperature in cylinder head air outlet flue one side, prevents the local superheating phenomenon, guarantees the diesel engine proper functioning.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model; Fig. 2 is lower floor's water channel schematic top plan view; Fig. 3 is a upper strata water channel schematic top plan view.
Among the figure, 1 is cylinder head, and 2 is the upper strata water channel, and 3 is lower floor's water channel, and 4 is the water channel internal face, and 5 is the water inlet.6 is intake duct, and 7 is air outlet flue, and 8 is diaphragm, and 9 is annular water hole, and 10 is oil sprayer, and 11 is midfeather, and 12 is osculum.
Five, embodiment
The utility model will be further described below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, 2, 3, multi-cylinder diesel engine cools off Double-layer drain piece cylinder head 1 by force, oil sprayer 10 is installed in the middle of the cylinder cover for diesel engine 1, cylinder head 1 inner lead is divided into two-layer up and down, the centre is separated by the diaphragm 8 that links to each other with water channel internal face 4, only around oil sprayer 10, adopt an annular water hole 9 perforation that links to each other between upper strata water channel 2 and the lower floor water channel 3, have midfeather 11 to separate between lower floor's water channel 3 every cylinders, lower floor's water channel 3 is not laterally connected.The Si Jiaochu of cylinder head 1 bottom surface, when linking to each other with the diesel-engine body osculum by four water inlets 5, current are flowed into lower floor's water channel 3 of cylinder head 1 by these water inlets 5, through the runner between two intake ducts 6 and two air outlet flues 7, annular water hole 9 around oil sprayer 10 upwards flows into upper strata water channel 2 then, all cooling waters are all flowed through around the oil sprayer 10, strengthen cooling oil sprayer 10.Owing to separate by lower floor's water channel midfeather 11 between lower floor's water channel 3 each cylinder of multi-cylinder diesel engine cylinder head 1, laterally do not connect,, make the cooling water flow of each cylinder basic identical so just can keep the independence of each cylinder cooling, reduce influencing each other between the current, make keeping in balance property of cooling effect.In upper strata water channel 2, the temperature of air outlet flue 7 is higher when considering the diesel engine real work, be arranged in air outlet flue 7 one sides of cylinder head 1 in upper strata water channel 2 basesets, so just can effectively strengthen cooling, prevent that the local superheating phenomenon from appearring in cylinder head 1 air outlet flue 7.Together with forming a water main each cylinder backwater is coupled together mutually between upper strata water channel 2 each cylinder, get back to the total return pipe of motor through total osculum 12.
The utility model has the advantages that forced cooling water flows through around the oil sprayer 10, strengthen cooling oil sprayer 10; Cylinder head 1 cooling water channel is divided into two-layer up and down, makes the mold design and the casting technique of script more complicated more convenient; Upper strata water channel 2 can be strengthened the cooling to air outlet flue 7; Lower floor's water channel 3 can guarantee that each cylinder cooling effect is independent harmonious.
Claims (1)
1. a multi-cylinder diesel engine cools off the Double-layer drain piece cylinder head by force, oil sprayer is installed in the middle of the cylinder cover for diesel engine, it is two-layer up and down to it is characterized in that the cylinder head cooling water channel is divided into, the centre has the diaphragm that links to each other with the water channel internal face to separate, only around oil sprayer, adopt the annular water hole perforation that links to each other between upper strata water channel and the lower floor water channel, there is midfeather to separate between the every cylinder of lower floor's water channel, separately do not connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200767269U CN201092896Y (en) | 2007-10-26 | 2007-10-26 | Multi-cylinder diesel engine intensive cooling double-layer water channel integral cylinder cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200767269U CN201092896Y (en) | 2007-10-26 | 2007-10-26 | Multi-cylinder diesel engine intensive cooling double-layer water channel integral cylinder cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201092896Y true CN201092896Y (en) | 2008-07-30 |
Family
ID=39900861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200767269U Expired - Lifetime CN201092896Y (en) | 2007-10-26 | 2007-10-26 | Multi-cylinder diesel engine intensive cooling double-layer water channel integral cylinder cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201092896Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337981A (en) * | 2011-08-05 | 2012-02-01 | 无锡开普动力有限公司 | Cylinder cover cooling structure of four-stroke engine |
| CN102635459A (en) * | 2012-05-06 | 2012-08-15 | 中国兵器工业集团第七0研究所 | Novel water cavity of cylinder cover |
| CN102635458A (en) * | 2012-05-06 | 2012-08-15 | 中国兵器工业集团第七○研究所 | Novel cylinder cover of diesel engine |
| CN102758701A (en) * | 2011-04-27 | 2012-10-31 | 广西玉柴机器股份有限公司 | Integral cylinder cover of water-cooled four-valve diesel engine and corresponding diesel engine water cooling method |
| CN103485921A (en) * | 2013-09-24 | 2014-01-01 | 中国北方发动机研究所(天津) | Uniform cooling double-layer-water-cavity cylinder cover for highly-intensified diesel engine |
| CN103867332A (en) * | 2012-12-17 | 2014-06-18 | 安徽华菱汽车有限公司 | Water-cooled engine and cylinder cover thereof |
| CN103883421A (en) * | 2014-04-02 | 2014-06-25 | 广西玉柴机器股份有限公司 | Air cylinder cover of V-type diesel engine |
| CN103982317A (en) * | 2014-04-19 | 2014-08-13 | 东风商用车有限公司 | High-strength diesel engine cylinder cover |
| WO2014190633A1 (en) * | 2013-05-27 | 2014-12-04 | 安徽江淮汽车股份有限公司 | Cooling water system for cylinder head of engine |
| CN105464831A (en) * | 2014-09-29 | 2016-04-06 | 通用汽车环球科技运作有限责任公司 | Engine assembly including thermal barrier |
| CN109915275A (en) * | 2019-03-28 | 2019-06-21 | 广西玉柴机器股份有限公司 | A kind of three way type cylinder cap cooling structure of exhaust duct part necking |
| CN111502855A (en) * | 2020-04-13 | 2020-08-07 | 周昊杰 | Cylinder head cooling and sealing device for motorcycle 158 engine |
-
2007
- 2007-10-26 CN CNU2007200767269U patent/CN201092896Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758701A (en) * | 2011-04-27 | 2012-10-31 | 广西玉柴机器股份有限公司 | Integral cylinder cover of water-cooled four-valve diesel engine and corresponding diesel engine water cooling method |
| CN102337981A (en) * | 2011-08-05 | 2012-02-01 | 无锡开普动力有限公司 | Cylinder cover cooling structure of four-stroke engine |
| WO2013020357A1 (en) * | 2011-08-05 | 2013-02-14 | 无锡开普动力有限公司 | Structure for cooling cylinder head of four-stroke engine |
| CN102635459A (en) * | 2012-05-06 | 2012-08-15 | 中国兵器工业集团第七0研究所 | Novel water cavity of cylinder cover |
| CN102635458A (en) * | 2012-05-06 | 2012-08-15 | 中国兵器工业集团第七○研究所 | Novel cylinder cover of diesel engine |
| CN103867332A (en) * | 2012-12-17 | 2014-06-18 | 安徽华菱汽车有限公司 | Water-cooled engine and cylinder cover thereof |
| CN103867332B (en) * | 2012-12-17 | 2016-06-29 | 安徽华菱汽车有限公司 | A kind of water-cooled engine and cylinder head thereof |
| WO2014190633A1 (en) * | 2013-05-27 | 2014-12-04 | 安徽江淮汽车股份有限公司 | Cooling water system for cylinder head of engine |
| CN103485921A (en) * | 2013-09-24 | 2014-01-01 | 中国北方发动机研究所(天津) | Uniform cooling double-layer-water-cavity cylinder cover for highly-intensified diesel engine |
| CN103883421A (en) * | 2014-04-02 | 2014-06-25 | 广西玉柴机器股份有限公司 | Air cylinder cover of V-type diesel engine |
| CN103982317A (en) * | 2014-04-19 | 2014-08-13 | 东风商用车有限公司 | High-strength diesel engine cylinder cover |
| CN103982317B (en) * | 2014-04-19 | 2018-03-06 | 东风商用车有限公司 | A kind of high intensity cylinder cover for diesel engine |
| CN105464831A (en) * | 2014-09-29 | 2016-04-06 | 通用汽车环球科技运作有限责任公司 | Engine assembly including thermal barrier |
| CN109915275A (en) * | 2019-03-28 | 2019-06-21 | 广西玉柴机器股份有限公司 | A kind of three way type cylinder cap cooling structure of exhaust duct part necking |
| CN111502855A (en) * | 2020-04-13 | 2020-08-07 | 周昊杰 | Cylinder head cooling and sealing device for motorcycle 158 engine |
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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 |
Granted publication date: 20080730 |
|
| CX01 | Expiry of patent term |