CN108035817B - Layered cooling cylinder cover of V-shaped engine - Google Patents
Layered cooling cylinder cover of V-shaped engine Download PDFInfo
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- CN108035817B CN108035817B CN201711146821.6A CN201711146821A CN108035817B CN 108035817 B CN108035817 B CN 108035817B CN 201711146821 A CN201711146821 A CN 201711146821A CN 108035817 B CN108035817 B CN 108035817B
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- water
- partition plate
- hole
- inlet hole
- water inlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
Abstract
The invention belongs to the technical field of engine cylinder heads, and relates to a layered cooling cylinder head of a V-shaped engine, which comprises a cylinder head body, wherein an air inlet channel and an air exhaust channel are distributed in the cylinder head body, a fuel injector mounting hole is arranged in the middle of the cylinder head body, and a cylinder head cooling water cavity is formed in an inner cavity of the cylinder head body, and the layered cooling cylinder head is characterized in that: a partition board is arranged in the cylinder cover body close to the bottom, the partition board divides a cylinder cover cooling water cavity into an upper water cavity and a lower water cavity, and an exhaust passage is arranged in the lower water cavity; the bottom of the cylinder cover body is provided with a first water inlet hole, a second water inlet hole, a third water inlet hole, a fourth water inlet hole, a fifth water inlet hole and a sixth water inlet hole which are communicated with the lower water cavity, wherein the first water inlet hole and the second water inlet hole are arranged below the exhaust passage. The flow field of a cylinder cover water channel is optimized by the cylinder cover, the problem of insufficient cooling of a nose bridge area at the bottom of the cylinder cover is solved, the service life of the cylinder cover is prolonged, and the use cost of an engine is reduced.
Description
Technical Field
The invention belongs to the technical field of engine cylinder covers, and relates to a layered cooling cylinder cover of a V-shaped engine.
Background
The existing V-shaped engines are all provided with a single cylinder cover for each cylinder, and the cooling systems of the cylinder covers are all the same. With the upgrading of the engine emission and the improvement of the power requirement of the engine, the cylinder cover is subjected to high temperature and high pressure, and the thermal stress and the mechanical stress are very large. The traditional cylinder cover cooling water channel cannot effectively reduce the heat load of a cylinder cover, and the nose bridge area at the bottom of the cylinder cover is cooled in an enhanced mode. The problem of the bottom of the cylinder cover cracking caused by the increase of the power of the engine is increased.
Disclosure of Invention
Aiming at the problems, the invention provides the layered cooling cylinder cover of the V-shaped engine, the flow field of a cylinder cover water channel is optimized, and the problem of insufficient cooling of a nose bridge area at the bottom of the cylinder cover is solved, so that the service life of the cylinder cover is prolonged, and the use cost of the engine is reduced.
According to the technical scheme of the invention: the utility model provides a layering cooling cylinder head of V type engine, includes the cylinder head body, distributes intake duct and exhaust passage in the cylinder head body, is equipped with the sprayer mounting hole in the middle of the cylinder head body, and cylinder head body inner chamber forms cylinder head cooling water cavity, its characterized in that: a partition board is arranged in the cylinder cover body close to the bottom, the partition board divides a cylinder cover cooling water cavity into an upper water cavity and a lower water cavity, and an exhaust passage is arranged in the lower water cavity; the bottom of the cylinder cover body is provided with a first water inlet hole, a second water inlet hole, a third water inlet hole, a fourth water inlet hole, a fifth water inlet hole and a sixth water inlet hole which are communicated with the lower water cavity, wherein the first water inlet hole and the second water inlet hole are arranged below the exhaust passage, the third water inlet hole and the fourth water inlet hole are respectively arranged on the cylinder cover body and are close to two sides of the two exhaust valves, and the fifth water inlet hole and the sixth water inlet hole are arranged below the air inlet passage; the first communicating water hole and the second communicating water hole are communicated with the upper water cavity and the lower water cavity, the lower water cavity is provided with a first water hole and a second water hole outside the inlet valve, the first water hole and the second water hole are communicated with the upper water cavity and the lower water cavity, a third water hole and a fourth water hole are arranged between the upper water cavity and the lower water cavity corresponding to the exhaust outlet on the cylinder cover body, and the third water hole and the fourth water hole are communicated with the upper water cavity and the lower water cavity; and a plurality of lower-layer water channel clapboards are arranged in the drainage cavity, and when the device works, the lower-layer water channel clapboards drain cooling water to the peripheral surface of the exhaust passage and converge the cooling water in the drainage cavity to pass through the nose bridge high-temperature area.
As a further improvement of the invention, the lower waterway separator comprises a first separator, a second separator, a third separator, a fourth separator, a fifth separator and a sixth separator, the fifth separator is arranged between the first water inlet and the second water inlet, the first separator is arranged on the side of the third water inlet close to the exhaust passage, the second separator is arranged on the side of the fourth water inlet close to the exhaust passage, the third separator and the fourth separator are arranged on the side close to the air inlet, the sixth separator is arranged between the fifth water inlet and the sixth water inlet, the third separator is provided with a first hole, the fourth separator is provided with a second hole, and the first separator, the second separator, the third separator and the fourth separator are respectively connected with the surfaces of the corresponding exhaust passages.
As a further improvement of the invention, four exhaust passages are uniformly distributed in the lower water cavity corresponding to the outer side of the surface of the oil sprayer mounting hole, a fifth partition plate and a sixth partition plate are on the same straight line, and the fifth partition plate extends to the position between two adjacent exhaust passages; the sixth partition plate extends to a position between two adjacent air inlet channels.
As a further improvement of the invention, the cylinder cover body is provided with a cylinder cover cooling water port corresponding to the top of the water feeding cavity.
The invention has the technical effects that: according to the invention, the scoring layer water cavity and the lower layer water cavity flow guide partition plate are arranged in the cylinder cover water cavity, the 6 fixed point water inlet holes are arranged at the bottom of the cylinder cover, and the communicating water holes of the lower layer water cavity and the upper layer water cavity are designed, so that the cylinder cover cooling water cools the bottom of the cylinder cover in the cylinder cover as much as possible, the outer surface around the exhaust passage is fully cooled, and the cooling water converging the lower layer water cavity passes through the nose bridge high-temperature area, the flow field of the cylinder cover water channel is optimized, the problem of insufficient cooling of the nose bridge area at the bottom of the cylinder cover is solved, the service life of the cylinder.
Drawings
Fig. 1 is a schematic sectional view of a cylinder head according to the present invention.
FIG. 2 is a top plan view of the cylinder head lower deck water chamber of the present invention.
FIG. 3 is a top view of the upper water chamber of the cylinder head of the present invention.
Fig. 4 is a schematic structural view of a cylinder head water cavity of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In fig. 1 to 4, the exhaust passage includes an exhaust passage 1, an intake passage 2, a second water hole 3, a fuel injector mounting hole 4, a partition plate 5, a lower water cavity 6, a first water hole 7, an upper water cavity 8, a cylinder head cooling water port 9, a first water hole 10, a second water hole 11, a third water hole 12, a fourth water hole 13, a fifth water hole 14, a sixth water hole 15, a third water hole 16, a fourth water hole 17, a fifth partition plate 18, a first partition plate 19, a second partition plate 20, a third partition plate 21, a fourth partition plate 22, a first hole 23, a second hole 24, a sixth partition plate 25, a first communicating water hole 26, a second communicating water hole 27, and the like.
As shown in fig. 1 to 4, the invention relates to a layered cooling cylinder cover of a V-type engine, which comprises a cylinder cover body, wherein an air inlet channel 2 and an air exhaust channel 1 are distributed in the cylinder cover body, a fuel injector mounting hole 4 is arranged in the middle of the cylinder cover body, a cylinder cover cooling water cavity is formed in an inner cavity of the cylinder cover body, a partition plate 5 is arranged in the cylinder cover body close to the bottom, the cylinder cover cooling water cavity is divided into an upper water cavity 8 and a lower water cavity 6 by the partition plate 5, and the air exhaust channel is arranged; a first water inlet hole 10, a second water inlet hole 11, a third water inlet hole 12, a fourth water inlet hole 13, a fifth water inlet hole 14 and a sixth water inlet hole 15 which are communicated with the lower water cavity 6 are formed in the bottom of the cylinder cover body, wherein the first water inlet hole 10 and the second water inlet hole 11 are formed below the exhaust passage 1, the third water inlet hole 12 and the fourth water inlet hole 13 are respectively formed in the cylinder cover body and are close to two sides of two exhaust valves, and the fifth water inlet hole 14 and the sixth water inlet hole 15 are formed below the air inlet passage 2; the first communicating water hole 26 and the second communicating water hole 27 are communicated with the upper water cavity 8 and the lower water cavity 6, the lower water cavity 6 is provided with a first water hole 7 and a second water hole 3 on the outer side of the air inlet door, the first water hole 7 and the second water hole 3 are communicated with the upper water cavity 8 and the lower water cavity 6, a third water hole 16 and a fourth water hole 17 are arranged between the upper water cavity 8 and the lower water cavity 6 corresponding to the exhaust outlet on the cylinder cover body, and the third water hole 16 and the fourth water hole 17 are communicated with the upper water cavity 8 and the lower water cavity 6; and a plurality of lower-layer water channel clapboards are arranged in the lower water cavity 6, and when the device works, the lower-layer water channel clapboards guide cooling water to the peripheral surface of the exhaust passage and converge the cooling water in the lower water cavity 6 to pass through the nose bridge high-temperature area.
The lower water channel partition plate comprises a first partition plate 19, a second partition plate 20, a third partition plate 21, a fourth partition plate 22, a fifth partition plate 18 and a sixth partition plate 25, the fifth partition plate 18 is arranged between a first water inlet hole 10 and a second water inlet hole 11, the first partition plate 19 is arranged on one side, close to the exhaust passage 1, of a third water inlet hole 12, the second partition plate 20 is arranged on one side, close to the exhaust passage 1, of a fourth water inlet hole 13, the third partition plate 21 and the fourth partition plate 22 are arranged on one side, close to the air inlet passage 2, the sixth partition plate 25 is arranged between the fifth water inlet hole 14 and the sixth water inlet hole 15, a first hole 23 is formed in the third partition plate 21, a second hole 24 is formed in the fourth partition plate 22, and the first partition plate 19, the second partition plate 20, the third partition plate 21 and the fourth partition plate 22 are respectively connected.
Four exhaust passages are uniformly distributed in the lower water cavity 6 corresponding to the outer side of the surface of the oil sprayer mounting hole 4, a fifth partition plate 18 and a sixth partition plate 25 are on the same straight line, and the fifth partition plate 18 extends to a position between two adjacent exhaust passages; the sixth partition 25 extends between two adjacent inlet channels. The cylinder cover body is provided with a cylinder cover cooling water port 9 corresponding to the top of the water feeding cavity 8.
The working process of the invention is as follows: the cylinder cover cooling water enters the cylinder cover lower water cavity 6 from 6 water inlets respectively, the cooling water flowing in from the first water inlet 10 and the second water inlet 11 flows into the first communicating water hole 26 and the second communicating water hole 27 to flow into the upper water cavity 8 through the periphery of the exhaust passage and the bridge area of the bridge of the cylinder cover nose, and a small part of the cooling water flows into the upper water cavity 8 through the third water hole 16 and the fourth water hole 17; cooling water flowing in from the third water inlet hole 12 and the fourth water inlet hole 13 flows into the first communicating water hole 26 and the second communicating water hole 27 through the periphery of the exhaust passage and the bridge area of the cylinder cover nose to flow into the upper water cavity 8; the cooling water that the fourth inlet opening 13, the fifth inlet opening 14 flowed in flows into and communicates first intercommunication water hole 26, second intercommunication water hole 27 and flows into upper water cavity 8 around the intake duct, in the cylinder cap bridge of the nose district, has partial cooling water to flow in first intercommunication water hole 26, second intercommunication water hole 27 and flow into upper water cavity 8 through first hole 23, second hole 24, has partial cooling water to flow in upper water cavity 8 through first water hole 7, second water hole 3. The cooling water is converged in the water feeding cavity 8 and flows out of the cylinder cover water cavity through the cylinder cover cooling water outlet 9. The design of the layered water cavity enables the cooling water of the cylinder cover to cool the bottom of the cylinder cover as much as possible in the cylinder cover, the outer surface around the exhaust passage is fully cooled, the cooling water of the water cavity of the lower layer is converged to pass through the high-temperature region of the nose bridge, the speed of the nose bridge region is 2m/s, the heat dissipation effect is good, the flow field of the water channel of the cylinder cover is optimized, the problem of insufficient cooling of the nose bridge region at the bottom of the cylinder cover is solved, the service life of the cylinder cover is prolonged, and the use cost.
Claims (4)
1. The utility model provides a layering cooling cylinder head of V type engine, includes the cylinder head body, this internal intake duct (2) and the exhaust passage (1) of distributing of cylinder head are equipped with sprayer mounting hole (4) in the middle of the cylinder head body, and cylinder head body inner chamber forms cylinder head cooling water cavity, its characterized in that: a partition plate (5) is arranged in the cylinder cover body close to the bottom, the partition plate (5) divides a cylinder cover cooling water cavity into an upper water cavity (8) and a lower water cavity (6), and the exhaust passage is arranged in the lower water cavity (6); the bottom of the cylinder cover body is provided with a first water inlet hole (10), a second water inlet hole (11), a third water inlet hole (12), a fourth water inlet hole (13), a fifth water inlet hole (14) and a sixth water inlet hole (15) which are communicated with the lower water cavity (6), wherein the first water inlet hole (10) and the second water inlet hole (11) are arranged below the exhaust passage (1), the third water inlet hole (12) and the fourth water inlet hole (13) are respectively arranged on the cylinder cover body and are close to two sides of the two exhaust valves, and the fifth water inlet hole (14) and the sixth water inlet hole (15) are arranged below the air inlet passage (2); the first communicating water hole (26) and the second communicating water hole (27) are communicated with the upper water cavity (8) and the lower water cavity (6), the lower water cavity (6) is provided with a first water hole (7) and a second water hole (3) on the outer side of the intake valve, the first water hole (7) and the second water hole (3) are communicated with the upper water cavity (8) and the lower water cavity (6), a third water hole (16) and a fourth water hole (17) are arranged between the upper water cavity (8) and the lower water cavity (6) on the cylinder cover body corresponding to the exhaust outlet, and the third water hole (16) and the fourth water hole (17) are communicated with the upper water cavity (8) and the lower water cavity (6); and a plurality of lower-layer water channel clapboards are arranged in the lower water cavity (6), and when the device works, the lower-layer water channel clapboards drain cooling water to the peripheral surface of the exhaust passage and converge the cooling water in the lower water cavity (6) to pass through the nose bridge high-temperature area.
2. The layered cooling cylinder head of a V-type engine according to claim 1, characterized in that: the lower-layer water channel partition plate comprises a first partition plate (19), a second partition plate (20), a third partition plate (21), a fourth partition plate (22), a fifth partition plate (18) and a sixth partition plate (25), wherein the fifth partition plate (18) is arranged between a first water inlet hole (10) and a second water inlet hole (11), the first partition plate (19) is arranged on one side, close to the exhaust passage (1), of a third water inlet hole (12), the second partition plate (20) is arranged on one side, close to the exhaust passage (1), of a fourth water inlet hole (13), the third partition plate (21) and the fourth partition plate (22) are arranged on one side, close to the air inlet passage (2), the sixth partition plate (25) is arranged between a fifth water inlet hole (14) and a sixth water inlet hole (15), a first hole (23) is arranged on the third partition plate (21), a second hole (24) is arranged on the fourth partition plate (22), and the first partition plate (19), the second partition plate (20), The third partition plate (21) and the fourth partition plate (22) are respectively connected with the surfaces of the corresponding exhaust passages.
3. The layered cooling cylinder head of a V-type engine according to claim 2, wherein: four exhaust passages are uniformly distributed in the lower water cavity (6) corresponding to the outer side of the surface of the oil sprayer mounting hole (4), a fifth partition plate (18) and a sixth partition plate (25) are on the same straight line, and the fifth partition plate (18) extends to a position between two adjacent exhaust passages; the sixth partition plate (25) extends to the position between two adjacent air inlet channels.
4. The layered cooling cylinder head of a V-type engine according to claim 1, characterized in that: and a cylinder cover cooling water port (9) is arranged on the top of the cylinder cover body corresponding to the water feeding cavity (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711146821.6A CN108035817B (en) | 2017-11-17 | 2017-11-17 | Layered cooling cylinder cover of V-shaped engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711146821.6A CN108035817B (en) | 2017-11-17 | 2017-11-17 | Layered cooling cylinder cover of V-shaped engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108035817A CN108035817A (en) | 2018-05-15 |
| CN108035817B true CN108035817B (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711146821.6A Active CN108035817B (en) | 2017-11-17 | 2017-11-17 | Layered cooling cylinder cover of V-shaped engine |
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| Country | Link |
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| CN (1) | CN108035817B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111271186B (en) * | 2020-01-19 | 2021-09-28 | 一汽解放汽车有限公司 | Cylinder head cooling structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1118653B (en) * | 1979-05-23 | 1986-03-03 | Fiat Veicoli Ind | CYLINDER HEAD FOR IGNITION ENGINES FOR COMBUSTION PRE-CHAMBER TYPE |
| CN201496140U (en) * | 2009-06-25 | 2010-06-02 | 南车资阳机车有限公司 | Active differential-type pre-combustion system |
| AT514813B1 (en) * | 2013-09-25 | 2015-04-15 | Ge Jenbacher Gmbh & Co Og | Arrangement of a cylinder head and a Vorkammersystem |
| CN106870117B (en) * | 2017-01-23 | 2019-06-04 | 江苏盛源燃气动力机械有限公司 | Water-cooled pre-burning device |
| CN107061045A (en) * | 2017-01-25 | 2017-08-18 | 无锡开普机械有限公司 | The sealing structure of spark plug |
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2017
- 2017-11-17 CN CN201711146821.6A patent/CN108035817B/en active Active
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| CN108035817A (en) | 2018-05-15 |
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