CN110159446B - Engine body cooling water jacket structure of multi-cylinder engine - Google Patents
Engine body cooling water jacket structure of multi-cylinder engine Download PDFInfo
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- CN110159446B CN110159446B CN201910584888.0A CN201910584888A CN110159446B CN 110159446 B CN110159446 B CN 110159446B CN 201910584888 A CN201910584888 A CN 201910584888A CN 110159446 B CN110159446 B CN 110159446B
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- water
- water jacket
- cylinder
- jacket
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- 239000000498 cooling water Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 122
- 238000001816 cooling Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 17
- 239000000110 cooling liquid Substances 0.000 description 14
- 238000002485 combustion reaction Methods 0.000 description 3
- 101000927062 Haematobia irritans exigua Aquaporin Proteins 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- F02F1/16—Cylinder liners of wet type
Landscapes
- 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)
Abstract
The invention discloses a machine body cooling water jacket structure of a multi-cylinder engine, belongs to the technical field of engine cooling, and solves the problems of poor cooling effect and large resistance caused by uniform width of a traditional machine body cooling water jacket. The machine body cooling water jacket structure comprises a transverse water channel, a longitudinal water channel and a plurality of cylinder jacket water channels, wherein each cylinder jacket water channel is independently arranged between a cylinder jacket and the machine body, each cylinder jacket water channel comprises an upper water jacket and a lower water jacket, the cross section width of the circumferential direction of the upper water jacket is equal, the cross section width of the left side and the right side of the lower water jacket is equal to the cross section width of the upper water jacket, and the cross section width of the front side and the rear side of the lower water jacket is larger than the cross section width of the upper water jacket. According to the engine body cooling water jacket structure of the multi-cylinder engine, the cylinder sleeve water channel is of a non-uniform width design, so that the strength of the engine body is ensured, the water flow speed is effectively improved, and the cooling effect is improved.
Description
Technical Field
The invention relates to the technical field of engine cooling, in particular to a machine body cooling water jacket structure of a multi-cylinder engine.
Background
In order to cool a combustion chamber such as an engine piston during production and manufacture of an engine, a cooling water jacket is generally provided between a machine body and a cylinder liner. In the traditional engine body cooling water jacket structure, the water jackets near the cylinder sleeves are generally uniform in width, namely the same in width, if the water jackets are wider in thickness, water flow is smaller, holes are dug between two cylinder holes, the cooling effect is poor, the supporting strength is poor, and the engine body is easy to deform; if the water jacket is narrow in thickness, there is a problem that the flow rate is high and the resistance is high. Therefore, the conventional engine body cooling water jacket structure cannot meet the actual requirements of the engine.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and provides a cooling water jacket structure of a multi-cylinder engine body, which ensures the strength of the engine body, effectively improves the water flow speed and improves the cooling effect.
The technical scheme adopted by the invention is as follows: a cooling water jacket structure of a multi-cylinder engine comprises a transverse water channel, a longitudinal water channel and a plurality of cylinder sleeve water channels, wherein each cylinder sleeve water channel is independently arranged between a cylinder sleeve and the engine body, each cylinder sleeve water channel comprises an upper water jacket and a lower water jacket, the cross section width of the upper water jacket in the circumferential direction is equal, the cross section width of the left side and the right side of the lower water jacket is equal to the cross section width of the upper water jacket, and the cross section width of the front side and the rear side of the lower water jacket is larger than the cross section width of the upper water jacket.
As a further improvement, the machine body cooling water jacket also comprises a water inlet, a first water outlet and a second water outlet, wherein the water inlet is communicated with the transverse water channel, the cylinder sleeve water channel corresponding to each cylinder sleeve is communicated with the transverse water channel through a longitudinal water channel, and each cylinder sleeve water channel is correspondingly communicated with one first water outlet and one second water outlet.
Further, the longitudinal water channel is communicated with the front side of the water jackets, and a communicating water channel is arranged between the two water jackets near the water inlet.
Further, the first water outlet and the second water outlet are respectively communicated with the front side and the rear side of the upper water jacket, and the flow area of the first water outlet is larger than that of the second water outlet.
Further, the cross section width of the upper water jacket is 3-4 mm, and the cross section width of the front side and the rear side of the lower water jacket is 8-10 mm.
Advantageous effects
Compared with the prior art, the invention has the following advantages:
1. the engine body cooling water jacket structure of the multi-cylinder engine adopts a non-uniform width design, and consists of the upper water jacket and the lower water jacket with different section widths, wherein the upper water jacket has small width and high cooling water flow rate, can effectively improve the cooling effect of the piston and the position of the combustion chamber, and the lower water jacket has large width and large flow section, can reduce flow resistance, ensures the engine body strength, simultaneously effectively improves the water flow speed and improves the cooling effect.
2. According to the invention, the cylinder sleeve water channels are independently arranged between the engine body and the cylinder sleeve, so that two adjacent cylinder sleeve water channels are not communicated, and cooling liquid cannot circulate between the cylinder sleeves, so that the cooling liquid rapidly takes away heat of the outer wall of the cylinder sleeve, and the cooling effect is further improved.
3. According to the invention, each cylinder sleeve water channel is correspondingly communicated with one first water outlet and one second water outlet, and the design of the two water outlets quickens the flow rate of cooling liquid, reduces the flow area of a single water outlet while meeting the drainage requirement, further improves the strength of a machine body, and can improve the flow rate of the cooling liquid at different positions and further improve the cooling effect due to different flow areas of the two water outlets.
4. The longitudinal water channel is communicated with the front side of the lower water jacket, so that cooling liquid flows through the high-flow lower water jacket, and then is discharged in an accelerated manner through the low-flow upper water jacket, the cooling liquid can quickly absorb heat and is discharged, and the cooling effect is further improved.
Drawings
FIG. 1 is a schematic diagram of a front view of a machine body according to the present invention;
FIG. 2 is a schematic top view of the machine body according to the present invention;
FIG. 3 is a schematic cross-sectional view of the structure B-B of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the structure C-C in FIG. 1;
FIG. 5 is a schematic view of the partial cross-sectional structure of E-E in FIG. 2;
FIG. 6 is a schematic cross-sectional view of the structure G-G of FIG. 2;
fig. 7 is a schematic view of a water jacket sand core structure of the present invention.
Wherein: 1-transverse water channel, 2-longitudinal water channel, 3-cylinder sleeve water channel, 4-cylinder sleeve, 5-machine body, 6-upper water jacket, 7-lower water jacket, 8-water inlet, 9-first water outlet, 10-second water outlet and 11-communicated water channel.
Detailed Description
The invention will be further described with reference to specific embodiments in the drawings.
Referring to fig. 1-7, the engine body cooling water jacket structure of the multi-cylinder engine comprises a transverse water channel 1, a longitudinal water channel 2 and a plurality of cylinder liner water channels 3, wherein each cylinder liner water channel 3 is independently arranged between a cylinder liner 4 and an engine body 5, namely, one cylinder liner 4 corresponds to one cylinder liner water channel 3, so that two adjacent cylinder liner water channels 3 are not communicated, cooling liquid cannot circulate between each cylinder liner, and therefore the cooling liquid rapidly takes away heat of the outer wall of the cylinder liner 4, and the cooling effect is further improved; the cylinder sleeve water channel 3 comprises an upper water jacket 6 and a lower water jacket 7, the cross section width of the upper water jacket 6 in the circumferential direction is equal, namely, the upper water jacket 6 is a cylindrical cavity, the cross section width of the left side and the right side of the lower water jacket 7 is equal to the cross section width of the upper water jacket 6, namely, the cross section width of the lower water jacket 7 between two adjacent cylinder sleeves 4 is equal to the cross section width of the upper water jacket 6, the cross section width of the front side and the rear side of the lower water jacket 7 is larger than the cross section width of the upper water jacket 6, the cylinder sleeve water channel 3 adopts a non-uniform width design and consists of the upper water jacket 6 and the lower water jacket 7 with different cross section widths, the upper water jacket 6 is small in width, the cooling water flow velocity is high, the cooling effect of the piston and the combustion chamber position can be effectively improved, the width of the lower water jacket 7 is large, the flow cross section can reduce the flow resistance, the strength of the engine body is ensured, the water flow speed is effectively improved, and the cooling effect is improved.
The engine body cooling water jacket of this embodiment still includes water inlet 8, first delivery port 9 and second delivery port 10, wherein, water inlet 8 and horizontal water course 1 intercommunication, the cylinder liner water course 3 that every cylinder liner 4 corresponds all communicates with horizontal water course 1 through a vertical water course 2, and every cylinder liner water course 3 all corresponds with a first delivery port 9, the second delivery port 10 intercommunication, namely every cylinder liner water course 3 all corresponds first delivery port 9 and second delivery port 10, the design of two delivery ports has accelerated the coolant liquid velocity of flow, when satisfying the water displacement requirement, reduce the flow area of single delivery port, further improve engine body intensity. Preferably, the first water outlet 9 and the second water outlet 10 are respectively communicated with the front side and the rear side of the upper water jacket 6, the flow area of the first water outlet 9 is larger than that of the second water outlet 10, and the flow areas of the two water outlets are different, so that the flow rate of cooling liquid at different positions can be improved, and the cooling effect is further improved.
Further, the longitudinal water channel 2 is communicated with the front side of the lower water jacket 7, and a communicating water channel 11 is arranged between the two lower water jackets 7 close to the water inlet 8, so that cooling liquid flows through the high-flow lower water jacket first, and then is discharged in an accelerating way through the low-flow upper water jacket, the cooling liquid can absorb heat rapidly and is discharged rapidly, and the cooling effect is further improved. The width of the section of the upper water jacket 6 is 3 mm-4 mm, namely, as shown by B1 in figure 3, 3 mm-4 mm, and the width of the section of the front side and the rear side of the lower water jacket 7 is 8 mm-10 mm, namely, as shown by B1 in figure 3, 8 mm-10 mm, so that the water flow is met, and the strength of the machine body is further enhanced.
When the engine body cooling water jacket structure in the implementation works, cooling liquid enters the transverse water channel 1 through the water inlet 8, then enters the cylinder sleeve water channels 3 corresponding to each cylinder sleeve 4 through the longitudinal water channels 2 respectively, during the period, the cooling liquid firstly enters from the front side of the lower water jacket 7, so that the flow resistance is effectively reduced, the cylinder sleeves corresponding to the lower water jacket 7 are cooled, then the cooling liquid flows into the upper water jacket 6 in an accelerating way, and finally is discharged through the first water outlet 9 and the second water outlet 10, so that cooling of each cylinder of the engine is realized. According to the engine body cooling water jacket structure of the multi-cylinder engine, the cylinder sleeve water channel is of a non-uniform width design, so that the strength of the engine body is ensured, the water flow speed is effectively improved, and the cooling effect is improved.
While only the preferred embodiments of the present invention have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (5)
1. The utility model provides a multi-cylinder engine's organism cooling water jacket structure, includes horizontal water course (1), vertical water course (2) and a plurality of cylinder liner water course (3), its characterized in that, every cylinder liner water course (3) all independently set up between cylinder liner (4) and organism (5), cylinder liner water course (3) include water jacket (6) and lower water jacket (7), the cross-section width of water jacket (6) circumferencial direction equals, the cross-section width of water jacket (7) left and right sides equals with the cross-section width of water jacket (6) down, the cross-section width of water jacket (6) is greater than the cross-section width of water jacket (6) around water jacket (7) down.
2. The engine body cooling water jacket structure of the multi-cylinder engine according to claim 1, further comprising a water inlet (8), a first water outlet (9) and a second water outlet (10), wherein the water inlet (8) is communicated with the transverse water channel (1), the cylinder sleeve water channel (3) corresponding to each cylinder sleeve (4) is communicated with the transverse water channel (1) through a longitudinal water channel (2), and each cylinder sleeve water channel (3) is correspondingly communicated with one first water outlet (9) and one second water outlet (10).
3. The engine body cooling water jacket structure of the multi-cylinder engine according to claim 2, wherein the longitudinal water channel (2) is communicated with the front side of the lower water jackets (7), and a communicating water channel (11) is arranged between the two lower water jackets (7) close to the water inlet (8).
4. The engine body cooling water jacket structure of the multi-cylinder engine according to claim 2, wherein the first water outlet (9) and the second water outlet (10) are respectively communicated with the front side and the rear side of the upper water jacket (6), and the flow area of the first water outlet (9) is larger than the flow area of the second water outlet (10).
5. The block cooling water jacket structure of a multi-cylinder engine according to any one of claims 1 to 4, wherein the cross-sectional width of the upper water jacket (6) is 3mm to 4mm, and the cross-sectional width of the front and rear sides of the lower water jacket (7) is 8mm to 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910584888.0A CN110159446B (en) | 2019-07-01 | 2019-07-01 | Engine body cooling water jacket structure of multi-cylinder engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910584888.0A CN110159446B (en) | 2019-07-01 | 2019-07-01 | Engine body cooling water jacket structure of multi-cylinder engine |
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| CN110159446A CN110159446A (en) | 2019-08-23 |
| CN110159446B true CN110159446B (en) | 2024-03-12 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953083A (en) * | 2019-11-29 | 2020-04-03 | 一汽解放汽车有限公司 | Engine direct-current cooling water flow control device and control method |
| CN111456863B (en) * | 2020-05-18 | 2024-05-07 | 安徽华菱汽车有限公司 | Cylinder sleeve cooling device capable of accurately shunting |
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