CN108547703B - Automobile engine cooling water jacket structure integrated with exhaust manifold - Google Patents
Automobile engine cooling water jacket structure integrated with exhaust manifold Download PDFInfo
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- CN108547703B CN108547703B CN201810246180.XA CN201810246180A CN108547703B CN 108547703 B CN108547703 B CN 108547703B CN 201810246180 A CN201810246180 A CN 201810246180A CN 108547703 B CN108547703 B CN 108547703B
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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
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
- F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
- F01N3/046—Exhaust manifolds with cooling jacket
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention relates to an automobile engine cooling water jacket structure integrated with an exhaust manifold, which comprises a cylinder body water jacket, a cylinder cover water jacket and a cylinder gasket, and is characterized in that: the cylinder body water jacket comprises a water passing channel arranged on the air inlet side of the engine and a cylinder body water jacket body which is coated outside the cylinder and communicated with the water passing channel; the cylinder cover water jacket comprises a combustion chamber water jacket which is coated outside the combustion chamber and communicated with the water passing channel, and an exhaust manifold water jacket which is coated outside the exhaust manifold and communicated with the combustion chamber water jacket. The cylinder head and the cylinder block can be well cooled, and the cooling water distribution proportion of the cylinder block water jacket and the cylinder head water jacket can be adjusted, so that the cooling effect of the cylinder head and the cylinder block is better; the temperature of the cylinder body can be ensured to be more uniform; the cooling strength of the combustion chamber and the exhaust passage region can be adjusted, so that the temperatures of the combustion chamber and the exhaust passage region are kept consistent; the cooling capacity of the exhaust manifold region can be improved, thereby improving the reliability and economy of the engine.
Description
Technical Field
The invention relates to an automobile engine, in particular to an automobile engine cooling water jacket structure integrated with an exhaust manifold.
Background
The arrangement mode that the exhaust manifold of the automobile engine is integrated on the cylinder cover can heat the cooling liquid by using the heat of the exhaust manifold during cold starting, so that the cooling liquid can quickly reach the working temperature, and the warming-up time is reduced; meanwhile, the structure is compact, and the internal surface area of an exhaust passage of the integrated exhaust manifold is smaller than that of a conventional external exhaust manifold, so that the light-off time of the three-way catalyst during cold start can be shortened. Under the high load working condition, the cooling liquid can cool the discharged waste gas, and the fuel enrichment of the mixture is reduced, so that the emission is optimized, and the oil consumption of the engine is reduced. However, the cylinder head having a high-temperature exhaust manifold built therein is often subjected to a high thermal load and a high mechanical load, because one heat source is added to the cooling system. Therefore, a reasonable cooling water jacket needs to be designed to ensure reasonable temperature distribution in the whole machine body and prevent local overheating in the cylinder cover; ensuring the dynamic property, the economical efficiency, the emission and the reliability of the engine. An "exhaust manifold water jacket integrated engine head" as disclosed in CN203403965U, having: a cylinder cover water jacket; the exhaust manifold water jacket is fixedly arranged above the cylinder cover water jacket and is communicated with the cylinder cover water jacket through a first communication channel, and a water outlet main port is formed in the exhaust manifold water jacket; the exhaust manifold water jacket and the cylinder cover water jacket are convenient to manufacture, and in addition, the exhaust manifold water jacket can be independently controlled, and the cooling effect is improved. This is clearly a beneficial attempt in the art.
Disclosure of Invention
The invention aims to provide an automobile engine cooling water jacket structure integrated with an exhaust manifold, which can well cool a cylinder cover and a cylinder body and can adjust the proportion of cooling water distribution of a cylinder body water jacket and a cylinder cover water jacket so that the cooling effect of the cylinder cover and the cylinder body is better; the temperature of the cylinder body can be ensured to be more uniform; the cooling strength of the combustion chamber and the exhaust passage region can be adjusted, so that the temperatures of the combustion chamber and the exhaust passage region are kept consistent; the cooling capacity of the exhaust manifold region can be improved, thereby improving the reliability and economy of the engine.
The invention relates to an automobile engine cooling water jacket structure integrated with an exhaust manifold, which comprises a cylinder body water jacket arranged in an air cylinder body, a cylinder cover water jacket arranged in an air cylinder cover and a cylinder gasket arranged between the cylinder body water jacket and the cylinder cover water jacket, and is characterized in that: the cylinder body water jacket comprises a water passing channel arranged on the air inlet side of the engine and a cylinder body water jacket body which is coated outside the cylinder and communicated with the water passing channel; the cylinder cover water jacket comprises a combustion chamber water jacket which is coated outside the combustion chamber and communicated with the water passing channel, and an exhaust manifold water jacket which is coated outside the exhaust manifold and communicated with the combustion chamber water jacket.
Furthermore, a water passing channel water inlet is formed in the position, close to the rear end of the engine, of the water passing channel, and a cylinder water jacket water inlet is formed in the position, close to the front end of the engine, of the water passing channel; a water outlet of the cylinder water jacket is formed in the position, close to the rear end of the engine, of the cylinder water jacket body; the water inlet and the water outlet of the cylinder water jacket are flush with the top surface of the cylinder body, and the cylinder water jacket body is communicated with the water passing channel through the water inlet of the cylinder water jacket.
Furthermore, a plurality of cylinder cover water jacket water inlets are formed in the part, close to the air inlet side of the engine, of the combustion chamber water jacket, and a cylinder cover water jacket water outlet is formed in the part, close to the rear end of the engine, of the combustion chamber water jacket; a plurality of side water holes which correspond to the water inlets of the water jacket of the cylinder cover one by one are formed in the position, close to the air inlet side of the engine, of the cylinder gasket; the combustion chamber water jacket is communicated with the water passing channel through a water inlet of the cylinder cover water jacket and a side water hole.
Furthermore, the combustion chamber water jacket comprises an upper combustion chamber water jacket and a lower combustion chamber water jacket, a first channel is arranged at the front end part of the upper combustion chamber water jacket close to the exhaust side of the engine, a second channel is arranged at the rear end part of the upper combustion chamber water jacket close to the exhaust side of the engine, a plurality of third channels are correspondingly arranged in the spark plug areas on the upper combustion chamber water jacket and the lower combustion chamber water jacket close to the exhaust side of the engine, a plurality of fourth channels are correspondingly arranged in the spark plug areas close to the air inlet side of the engine, and a fifth channel is correspondingly arranged at the part close to the front end of the engine; the upper layer combustion chamber water jacket is communicated with the exhaust manifold water jacket through a first passage and a second passage; the lower-layer combustion chamber water jacket is communicated with the upper-layer combustion chamber water jacket through a third channel, a fourth channel and a fifth channel, and a water inlet of the cylinder cover water jacket is formed in a position, close to the air inlet side of the engine, of the lower-layer combustion chamber water jacket.
Further, the exhaust manifold water jacket comprises an upper exhaust manifold water jacket and a lower exhaust manifold water jacket; the front end parts of the upper-layer exhaust manifold water jacket and the lower-layer exhaust manifold water jacket are communicated with the upper-layer combustion chamber water jacket through first channels, and the rear end parts of the upper-layer exhaust manifold water jacket and the lower-layer exhaust manifold water jacket are communicated with the upper-layer combustion chamber water jacket through second channels.
Furthermore, the number of the water inlets of the water jacket of the cylinder cover is twice that of the engine cylinders, and the water inlets are respectively arranged on the front side and the rear side of each air inlet channel.
Furthermore, the number of the third channel and the fourth channel is equal to the number of the engine cylinders, and the third channel and the fourth channel are symmetrically distributed on two sides of each cylinder respectively.
Furthermore, a confluence part is formed at the positions of the upper layer exhaust manifold water jacket and the lower layer exhaust manifold water jacket close to the exhaust side of the engine, upper partition plates are symmetrically arranged at the front part and the rear part of the upper layer exhaust manifold water jacket close to the confluence part, and lower partition plates are symmetrically arranged at the front part and the rear part of the lower layer exhaust manifold water jacket close to the confluence part.
Furthermore, the included angles α between the upper partition plate and the lower partition plate and the direction of the air inlet side of the engine are 40-50 degrees.
The invention has the beneficial technical effects that:
(1) the cylinder body water jacket and the cylinder cover water jacket are in a parallel flow mode, and cooling water of the cylinder cover and the cylinder body are not interfered with each other, so that the cooling effect of the cylinder cover and the cylinder body is better; the sectional area of the water inlet of the cylinder water jacket is adjusted, so that the proportion of cooling water flowing into the cylinder water jacket and the cylinder cover water jacket is changed, and the temperatures of the cylinder cover and the cylinder body are more uniform.
(2) The water inlet and the water outlet of the cylinder water jacket are both positioned at the upper part of the cylinder water jacket and flush with the top surface of the cylinder body, so that most of cooling water flows at the upper part of the cylinder body with higher heat load, and the temperature of the cylinder body is more uniform.
(3) The cylinder cover water jacket is divided into a combustion chamber water jacket and an exhaust manifold water jacket, the combustion chamber water jacket and the exhaust manifold water jacket are connected through a first channel and a second channel, and the cooling strength of the combustion chamber and the exhaust passage area is adjusted by changing the sectional areas of the first channel and the second channel, so that the temperatures of the combustion chamber area and the exhaust passage area tend to be consistent.
(4) The upper partition plate and the lower partition plate are symmetrically arranged at the front part and the rear part of the junction part of the water jacket of the exhaust manifold, and the flow of a high-temperature region of the exhaust passage, namely the junction part of the exhaust passage, is improved by adjusting the shapes of the upper partition plate and the lower partition plate, so that the temperature of the whole exhaust passage is more uniform.
(5) The cooling water in the lower combustion chamber water jacket flows to the exhaust side of the engine from the air inlet side of the engine, so that the higher flow speed around an air inlet channel with higher heat load and a spark plug is ensured, and the temperature of the combustion chamber area is more uniform.
(6) Through CFD analysis, specific shapes of the exhaust manifold water jacket, the upper partition plate and the lower partition plate and cross sectional areas of the cylinder water jacket water inlet, the first channel and the second channel can be determined, and different engines can be correspondingly optimally designed according to spatial arrangement.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of a cylinder block water jacket (sand core);
FIG. 3 is a schematic structural view of a cylinder head water jacket (sand core);
FIG. 4 is a schematic view of a cylinder head gasket;
FIG. 5 is a bottom view of the cylinder head water jacket (sand core);
FIG. 6 is a schematic view of the connection structure of the upper combustion chamber water jacket and the exhaust manifold water jacket (sand core);
FIG. 7 is a schematic view of the structure of the lower combustion chamber water jacket (sand core);
fig. 8 is a bottom view of the lower combustion chamber water jacket (sand core).
In the figure: 1-cylinder water jacket, 2-cylinder water jacket, 3-cylinder gasket, 4-engine front end, 5-engine rear end, 6-engine air inlet side, 7-engine exhaust side, 8-junction, 9-upper partition, 10-lower partition;
11-a water passing channel, 12-a cylinder water jacket body, 13-a water passing channel water inlet, 14-a cylinder water jacket water inlet and 15-a cylinder water jacket water outlet;
21-a combustion chamber water jacket, 22-an exhaust manifold water jacket, 23-a cylinder cover water jacket water inlet, 24-a cylinder cover water jacket water outlet, 25-a first channel, 26-a second channel, 27-a third channel, 28-a fourth channel and 29-a fifth channel;
31-side water hole;
211-an upper-layer combustion chamber water jacket and 212-a lower-layer combustion chamber water jacket;
221-upper exhaust manifold water jacket, 222-lower exhaust manifold water jacket.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Referring to fig. 1 to 8, an automobile engine cooling water jacket structure integrated with an exhaust manifold includes a cylinder block water jacket 1 disposed in an air cylinder block, a cylinder head water jacket 2 disposed in a cylinder head, and a cylinder gasket 3 disposed between the cylinder block water jacket 1 and the cylinder head water jacket 2, and is characterized in that: the cylinder body water jacket 1 comprises a water passing channel 11 arranged on the air inlet side 6 of the engine and a cylinder body water jacket body 12 which is coated outside the cylinder and communicated with the water passing channel 11; the cylinder cover water jacket 2 comprises a combustion chamber water jacket 21 which is coated outside the combustion chamber and communicated with the water passing channel 11, and an exhaust manifold water jacket 22 which is coated outside the exhaust manifold and communicated with the combustion chamber water jacket 21. The combustion chamber water jacket 21 mainly surrounds the spark plug and the top of the combustion chamber and is responsible for cooling the combustion chamber and the area near the spark plug, and the exhaust manifold water jacket 22 mainly surrounds the junction of the exhaust manifold and is responsible for cooling the exhaust passage area. The cooling water flows into the cylinder body water jacket body 12 after passing through the water channel 11, and flows into the cylinder cover water jacket 2, so that the cooling water of the cylinder cover and the cylinder body do not interfere with each other, and the cooling effect of the cylinder cover and the cylinder body is better.
A water passing channel water inlet 13 is formed in the position, close to the rear end 5 of the engine, of the water passing channel 11, and a cylinder water jacket water inlet 14 is formed in the position, close to the front end 4 of the engine, of the water passing channel 11; a cylinder water jacket water outlet 15 is formed in the position, close to the rear end 5 of the engine, of the cylinder water jacket body 12; the water inlet 14 and the water outlet 15 of the cylinder water jacket are flush with the top surface of the cylinder body, and the cylinder water jacket body 12 is communicated with the water passing channel 11 through the water inlet 14 of the cylinder water jacket. The water passing channel 11 is parallel to the cylinder water jacket body 12, and the cylinder water jacket water inlet 14 and the cylinder water jacket water outlet 15 are both located at the upper part of the cylinder water jacket and flush with the top surface of the cylinder body, so that cooling water is fully utilized, and meanwhile, most of cooling water can be guaranteed to flow at the upper part of the cylinder body with higher heat load, so that the temperature of the cylinder body is more uniform, and the cylinder body is better cooled.
A plurality of cylinder cover water jacket water inlets 23 are formed in the part, close to the engine air inlet side 6, of the combustion chamber water jacket 21, and a cylinder cover water jacket water outlet 24 is formed in the part, close to the rear end 5, of the engine, of the combustion chamber water jacket 21; a plurality of side water holes 31 which correspond to the water inlets 23 of the water jacket of the cylinder cover one by one are arranged at the part of the cylinder gasket 3 close to the air inlet side 6 of the engine; the combustion chamber water jacket 21 is communicated with the water passing channel 11 through a cylinder cover water jacket water inlet 23 and a side water hole 31.
The combustion chamber water jacket 21 comprises an upper layer combustion chamber water jacket 211 and a lower layer combustion chamber water jacket 212, a first channel 25 is arranged at the front end part of the upper layer combustion chamber water jacket 211 close to the exhaust side 7 of the engine, a second channel 26 is arranged at the rear end part of the upper layer combustion chamber water jacket 211 close to the exhaust side 7 of the engine, a plurality of third channels 27 are correspondingly arranged in the spark plug area of the upper layer combustion chamber water jacket 211 and the lower layer combustion chamber water jacket 212 close to the exhaust side 7 of the engine, a plurality of fourth channels 28 are correspondingly arranged in the spark plug area close to the intake side 6 of the engine, and a fifth channel 29 is correspondingly arranged at the part close to the front end 4 of the engine; the upper combustion chamber water jacket 211 communicates with the exhaust manifold water jacket 22 through a first passage 25 and a second passage 26; the lower combustion chamber water jacket 212 is communicated with the upper combustion chamber water jacket 211 through a third passage 27, a fourth passage 28 and a fifth passage 29, and the cylinder head water jacket water inlet 23 is arranged at the part of the lower combustion chamber water jacket 212 close to the engine air inlet side 6.
The exhaust manifold water jacket 22 includes an upper exhaust manifold water jacket 221 and a lower exhaust manifold water jacket 222; the front end portions of the upper exhaust manifold water jacket 221 and the lower exhaust manifold water jacket 222 communicate with the upper combustion chamber water jacket 211 through a first passage 25, and the rear end portions communicate with the upper combustion chamber water jacket 211 through a second passage 26.
The number of the water inlets 23 of the cylinder cover water jacket is twice of the number of the engine cylinders, and the water inlets are respectively arranged on the front side and the rear side of each air inlet channel. The number of the third channel 27 and the fourth channel 28 is equal to the number of the engine cylinders, and the third channel and the fourth channel are symmetrically distributed on two sides of each cylinder respectively. Taking a four-cylinder engine as an example: the total number of the water inlets 23 of the water jacket of the cylinder cover is eight, and the water inlets are respectively arranged at the front side and the rear side of each air inlet channel; the third passages 27 are four in total and are respectively disposed in the spark plug regions of each cylinder near the exhaust side 7 of the engine, and the fourth passages 28 are four in total and are respectively disposed in the spark plug regions of each cylinder near the intake side 6 of the engine.
The upper exhaust manifold water jacket 221 and the lower exhaust manifold water jacket 222 form a junction part 8 near the exhaust side 7 of the engine, the upper exhaust manifold water jacket 221 is symmetrically provided with upper partition plates 9 near the front part and the rear part of the junction part 8, and the lower exhaust manifold water jacket 222 is symmetrically provided with lower partition plates 10 near the front part and the rear part of the junction part 8. The flow of the high-temperature area of the exhaust passage, namely the collection part of the exhaust passage, is improved by adjusting the shapes of the upper partition plate and the lower partition plate, so that the temperature of the whole exhaust passage is more uniform.
The included angles α between the upper partition board 9 and the lower partition board 10 and the direction of the air inlet side 6 of the engine are 40-50 degrees.
Cooling water flows into the water channel 11 from the water outlet of the water pump through the water channel water inlet 13; a part of cooling water flows into the cylinder water jacket body 12 from the cylinder water jacket water inlet 14 at the front end 4 of the engine and then flows out from the cylinder water jacket water outlet 15 at the rear end 5 of the engine; another part of the cooling water flows into the cylinder head water jacket 2 through the side water hole 31 of the cylinder gasket 3 and the cylinder head water jacket water inlet 23, and then flows out from the cylinder head water jacket water outlet 24 at the rear end 5 of the engine. The cylinder body water jacket 1 and the cylinder cover water jacket 2 are in a parallel flowing mode, and cooling water of the cylinder cover and the cylinder body do not interfere with each other, so that the cooling effect of the cylinder cover and the cylinder body is better. By adjusting the sectional area of the water inlet 14 of the cylinder water jacket, the proportion of cooling water flowing into the cylinder water jacket 1 and the cylinder head water jacket 2 can be changed, so that the temperatures of the cylinder head and the cylinder block are more uniform.
The cooling water which passes through the water inlet 23 of the cylinder cover water jacket firstly flows into the lower-layer combustion chamber water jacket 212, one part of the cooling water flows into the upper-layer combustion chamber water jacket 211 through the fourth channel 28, and the other part of the cooling water also flows into the upper-layer combustion chamber water jacket 211 through the third channel 27 and the fifth channel 29 after flushing the air inlet channel area; this flow pattern facilitates efficient cooling of the intake passage and the spark plug and uniform cooling of each cylinder. The cooling water in the upper combustion chamber water jacket 211 flows into the exhaust manifold water jacket 22 through the first passage 25, then flows back to the upper combustion chamber water jacket 211 through the second passage 26, and finally flows out of the cylinder head water jacket water outlet 24. The water flow of the exhaust manifold water jacket 22 can be adjusted by changing the sectional areas of the first channel 25 and the second channel 26, so that the temperature of the cylinder head is more uniform; and at the same time, the cooling capacity of the exhaust manifold area can be improved, thereby improving the reliability and the economical efficiency of the engine.
Claims (7)
1. The utility model provides an integrated exhaust manifold's automobile engine cooling water jacket structure, includes cylinder body water jacket (1) of establishing in the cylinder body, establishes cylinder head water jacket (2) in the cylinder head, establishes cylinder gasket (3) between cylinder body water jacket (1) and cylinder head water jacket (2), characterized by: the cylinder body water jacket (1) comprises a water passing channel (11) arranged on the air inlet side (6) of the engine and a cylinder body water jacket body (12) which is coated outside the cylinder and communicated with the water passing channel (11); the cylinder cover water jacket (2) comprises a combustion chamber water jacket (21) which is coated outside the combustion chamber and communicated with the water passing channel (11), and an exhaust manifold water jacket (22) which is coated outside the exhaust manifold and communicated with the combustion chamber water jacket (21); a water passing channel water inlet (13) is formed in the position, close to the rear end (5) of the engine, of the water passing channel (11), and a cylinder water jacket water inlet (14) is formed in the position, close to the front end (4) of the engine, of the water passing channel (11); a cylinder water jacket water outlet (15) is formed in the position, close to the rear end (5) of the engine, of the cylinder water jacket body (12); the water inlet (14) and the water outlet (15) of the cylinder water jacket are flush with the top surface of the cylinder body, and the cylinder water jacket body (12) is communicated with the water passing channel (11) through the water inlet (14) of the cylinder water jacket; a plurality of cylinder cover water jacket water inlets (23) are formed in the part, close to the engine air inlet side (6), of the combustion chamber water jacket (21), and cylinder cover water jacket water outlets (24) are formed in the part, close to the rear end (5) of the engine, of the combustion chamber water jacket (21); a plurality of side water holes (31) which correspond to the water inlets (23) of the water jacket of the cylinder cover one by one are formed in the position, close to the air inlet side (6) of the engine, of the cylinder gasket (3); the combustion chamber water jacket (21) is communicated with the water passing channel (11) through a cylinder cover water jacket water inlet (23) and a side water hole (31).
2. The exhaust manifold integrated automobile engine cooling water jacket structure according to claim 1, wherein: the combustion chamber water jacket (21) comprises an upper combustion chamber water jacket (211) and a lower combustion chamber water jacket (212), a first channel (25) is arranged at the front end part of the upper combustion chamber water jacket (211) close to the exhaust side (7) of the engine, a second channel (26) is arranged at the rear end part of the upper combustion chamber water jacket (211) close to the exhaust side (7) of the engine, a plurality of third channels (27) are correspondingly arranged in the spark plug area of the upper combustion chamber water jacket (211) and the lower combustion chamber water jacket (212) close to the exhaust side (7) of the engine, a plurality of fourth channels (28) are correspondingly arranged in the spark plug area close to the air inlet side (6) of the engine, and a fifth channel (29) is correspondingly arranged at the part close to the front end (4) of; the upper combustion chamber water jacket (211) is communicated with the exhaust manifold water jacket (22) through a first passage (25) and a second passage (26); the lower-layer combustion chamber water jacket (212) is communicated with the upper-layer combustion chamber water jacket (211) through a third channel (27), a fourth channel (28) and a fifth channel (29), and the cylinder cover water jacket water inlet (23) is formed in the position, close to the engine air inlet side (6), of the lower-layer combustion chamber water jacket (212).
3. The exhaust manifold integrated automobile engine cooling water jacket structure according to claim 2, wherein: the exhaust manifold water jacket (22) comprises an upper exhaust manifold water jacket (221) and a lower exhaust manifold water jacket (222); the front end parts of the upper-layer exhaust manifold water jacket (221) and the lower-layer exhaust manifold water jacket (222) are communicated with the upper-layer combustion chamber water jacket (211) through a first passage (25), and the rear end parts of the upper-layer exhaust manifold water jacket and the lower-layer exhaust manifold water jacket are communicated with the upper-layer combustion chamber water jacket (211) through a second passage (26).
4. The exhaust manifold integrated automobile engine cooling water jacket structure according to claim 1, wherein: the number of the water inlets (23) of the cylinder cover water jacket is twice of the number of the engine cylinders, and the water inlets are respectively arranged on the front side and the rear side of each air inlet channel.
5. The exhaust manifold integrated automobile engine cooling water jacket structure according to claim 2, wherein: the number of the third channel (27) and the fourth channel (28) is equal to that of the engine cylinders, and the third channel and the fourth channel are symmetrically distributed on two sides of each cylinder respectively.
6. The exhaust manifold integrated automobile engine cooling water jacket structure according to claim 3, wherein: the engine exhaust side (7) part of upper exhaust manifold water jacket (221) and lower exhaust manifold water jacket (222) forms a confluence part (8), the front part and the rear part of upper exhaust manifold water jacket (221) close to the confluence part (8) are symmetrically provided with upper partition plates (9), and the front part and the rear part of lower exhaust manifold water jacket (222) close to the confluence part (8) are symmetrically provided with lower partition plates (10).
7. The structure of the cooling water jacket of the automobile engine integrating the exhaust manifold as recited in claim 6, wherein the included angles α between the upper partition plate (9) and the lower partition plate (10) and the direction of the engine inlet side (6) are 40-50 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810246180.XA CN108547703B (en) | 2018-03-23 | 2018-03-23 | Automobile engine cooling water jacket structure integrated with exhaust manifold |
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|---|---|---|---|
| CN201810246180.XA CN108547703B (en) | 2018-03-23 | 2018-03-23 | Automobile engine cooling water jacket structure integrated with exhaust manifold |
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| CN108547703A CN108547703A (en) | 2018-09-18 |
| CN108547703B true CN108547703B (en) | 2020-05-08 |
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| CN111810311A (en) * | 2019-04-11 | 2020-10-23 | 广州汽车集团股份有限公司 | Engine cooling water jacket structure and engine |
| CN110332055B (en) * | 2019-07-23 | 2020-10-02 | 安徽江淮汽车集团股份有限公司 | Engine cylinder cover water jacket and engine |
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| CN114233508B (en) * | 2021-12-29 | 2023-02-24 | 安徽江淮汽车集团股份有限公司 | Engine cylinder cover water jacket |
| CN114837844A (en) * | 2022-06-01 | 2022-08-02 | 江苏常发农业装备股份有限公司 | Cylinder cover and engine |
| CN115419495A (en) * | 2022-09-13 | 2022-12-02 | 重庆长安汽车股份有限公司 | Engine cooling water jacket and engine |
| CN115405434B (en) * | 2022-09-29 | 2024-02-23 | 赛力斯集团股份有限公司 | Split engine cooling water jacket |
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| CN101044304A (en) * | 2005-09-13 | 2007-09-26 | 通用汽车环球科技运作公司 | Engine cooling method and apparatus |
| FR2916233B1 (en) * | 2007-05-14 | 2009-07-03 | Renault Sas | MOTOR VEHICLE ENGINE COMPRISING AN INNOVATIVE COOLING CIRCUIT |
| EP2077388B1 (en) * | 2008-01-07 | 2010-12-01 | Ford Global Technologies, LLC | Combination with cylinder head and cylinder block and usage of such a combination |
| DE102008035957B4 (en) * | 2008-07-31 | 2014-08-07 | Ford Global Technologies, Llc | Cylinder head for an internal combustion engine |
| EP2385229B1 (en) * | 2010-05-04 | 2017-08-02 | Ford Global Technologies, LLC | Internal combustion engine with liquid cooling system |
| CN106089470B (en) * | 2016-07-29 | 2018-09-11 | 重庆长安汽车股份有限公司 | A kind of engine cool nested structure of integrated exhaust manifold |
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