CN110953083A - Engine direct-current cooling water flow control device and control method - Google Patents
Engine direct-current cooling water flow control device and control method Download PDFInfo
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- CN110953083A CN110953083A CN201911196273.7A CN201911196273A CN110953083A CN 110953083 A CN110953083 A CN 110953083A CN 201911196273 A CN201911196273 A CN 201911196273A CN 110953083 A CN110953083 A CN 110953083A
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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
- 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
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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)
Abstract
The invention relates to a direct-current cooling water flow control device and a direct-current cooling water flow control method for an engine. In the invention, cooling water flows enter from the front end of an engine cylinder body and flows out from the rear end of the engine cylinder cover after cooling the engine; cooling water sequentially flows through each cylinder barrel water jacket and each cylinder cover water jacket through the cylinder body water distribution channel, the flow of the cooling water entering each cylinder is controlled by the section size of the cylinder barrel water inlet hole and the cylinder cover water inlet hole, and the cooling water of each cylinder is uniformly distributed; the cooling water flows tangentially around the circumference of the cylinder sleeve in the cylinder body, so that the water flow speed is convenient to control, and the cooling effect of the cylinder sleeve is improved. The device can be used for multi-cylinder engines, in particular heavy diesel engines with large mass and high engine heat load and heavy natural gas engines with strict requirements on cooling of core components.
Description
Technical Field
The invention belongs to the technical field of automobile engines, and particularly relates to a direct-current cooling water flow control device and a direct-current cooling water flow control method for an engine.
Background
The engine for the commercial vehicle has the requirements of continuously improving the dynamic property, the economical efficiency and the emission, the explosion pressure, the highest combustion temperature and the heat dissipation capacity of the engine are higher and higher, and the heat load of core parts such as an engine cylinder cover, a piston ring group, an air valve seat ring and the like is larger and larger; the problem of failure of the parts caused by thermal load is more and more prominent, the effective cooling of the core parts of each cylinder is guaranteed to be important for a multi-cylinder engine, and the water flow organization mode of the whole engine is a key factor.
At present, on a commercial truck, because a radiator is arranged at the front end of the whole truck, most engine cooling water enters from the front end of an engine and then flows out from the front end, and the commercial truck is convenient to be connected with the radiator of the whole truck. The corresponding cooling water in the engine generally enters from the front end of the cylinder body, cools the cylinder sleeve in the engine, cools a cylinder cover bottom plate, and then flows out from the front end of the cylinder cover; an integral 'U' -shaped water flow is formed inside the engine. The disadvantages of the above engine cooling are: for the U-shaped water flow of the multi-cylinder diesel engine, cooling water turns around at the U-shaped bent part at the rear end of the engine, the water flow speed is reduced, the cooling heat exchange coefficient is reduced, the cooling of the front end and the rear end of the engine is inconsistent, the cooling of each cylinder is uneven, and the problem of reliability of the engine is easily caused under high load.
Disclosure of Invention
The invention aims to provide a direct-current cooling water flow control device and a control method for an engine, aiming at the defect of uneven front and back cooling of the engine in the prior art.
The purpose of the invention is realized by the following technical scheme:
a direct-current cooling water flow control device of an engine mainly comprises a cylinder body 1, a cylinder body water distribution channel 2, a plurality of cylinder sleeve water inlets 3, a plurality of cylinder water jackets 4, a plurality of cylinder sleeves 5, a plurality of cylinder water jacket water outlets 6, a cylinder cover 7, a plurality of cylinder cover water inlet holes 8, a plurality of cylinder cover cylinder partition plates 9, a cylinder cover water collecting channel 10 and a cylinder cover water outlet 11.
The cylinder body water distribution channel 2 is positioned on the outer side of the engine cylinder body 1, each cylinder sleeve water inlet 3 is communicated with the cylinder body water distribution channel 2, a circular ring gap formed between the cylinder body 1 and the outer wall of the cylinder sleeve 5 of each cylinder is a cylinder barrel water jacket 4 of each cylinder, and a water outlet which is communicated with the cylinder barrel water jacket 4 and is positioned on the opposite side of the cylinder sleeve water inlet 3 is a cylinder barrel water jacket water outlet 6; the cylinder cover 7 is arranged above the cylinder body, a cylinder barrel water jacket water outlet 6 of each cylinder is communicated with a cylinder cover water inlet hole 8, the cylinder cover water jacket is divided into independent water jackets of each cylinder by a cylinder cover cylinder partition plate 9, the cylinder cover water collecting channel 10 is positioned on the opposite side of the cylinder cover water inlet hole 8 on the cylinder cover 7, and an outlet on one side of the cylinder cover water collecting channel 10 is a cylinder cover water outlet 11.
Furthermore, the number of the cylinder sleeve water inlet 3, the cylinder water jacket 4, the cylinder sleeve 5, the cylinder water jacket water outlet 6, the cylinder cover 7, the cylinder cover water inlet hole 8 and the cylinder cover spacer plate 9 is related to the number of the cylinders of the engine, and the number of the components is 6.
The control method of the direct-current cooling water flow control device of the engine comprises the following steps:
A. the engine cooling water 12 enters the cylinder block water distribution channel 2, enters the cylinder jacket 4 through each cylinder jacket water inlet 3, flows tangentially around the circumference of the cylinder jacket 5 to cool the cylinder jacket 5, and then enters the cylinder cover water inlet hole 8 from the cylinder jacket water outlet 6;
B. in each cylinder cover water jacket, engine cooling water 12 is controlled by a cylinder partition plate 9 to flow transversely to cool a cylinder cover bottom plate 13, and the cooling water of each cylinder flows out of the engine from a cylinder cover water outlet 11 at the rear end of the engine after being collected in a cylinder cover water collecting channel 10.
The cooling water of the engine flows through each cylinder barrel water jacket 4 and each cylinder cover water jacket in sequence through the cylinder block water distribution channel 2, the flow rate of the cooling water entering each cylinder is controlled by the water inlet 3 of the cylinder sleeve and the section size of the water inlet hole 8 of the cylinder cover, and the cooling water of each cylinder is relatively independent, so that the cooling water of each cylinder is controlled to be uniformly distributed.
Compared with the prior art, the invention has the beneficial effects that:
according to the direct-current cooling water flow control device for the engine, cooling water is controlled to enter from the front end of the engine and flow out from the rear end of the engine after the engine is cooled, the whole water flow does not turn around from front to back, the water flow speed is reduced, and the cooling heat exchange coefficient is reduced, so that the reliability problem caused by inconsistent cooling effects of the front end and the rear end of the engine is caused; the whole water flow is not turned, so that the flow is smooth, and the water flow resistance of the whole machine is low; the direct current water flow cooling control device and the control method of the engine can be applied to multi-cylinder engines such as diesel oil, natural gas, gasoline and the like; the cooling device is particularly suitable for the severe cooling requirements of heavy diesel engines and heavy natural gas engines with large total mass of vehicles and high engine heat load on core parts.
Drawings
FIG. 1 is a schematic diagram of a cylinder water jacket;
FIG. 2 is a schematic diagram of water flow of a cylinder head water jacket;
fig. 3 is a schematic diagram of water flow transition areas of a cylinder body and a cylinder cover.
In the figure, 1, a cylinder body 2, a cylinder body water distribution channel 3, a cylinder sleeve water inlet 4, a cylinder water jacket 5, a cylinder water jacket 6, a cylinder water jacket water outlet 7, a cylinder cover 8, a cylinder cover water inlet hole 9, a cylinder cover cylinder partition plate 10, a cylinder cover water collection channel 11, a cylinder cover water outlet 12, engine cooling water 13 and a cylinder cover bottom plate.
Detailed Description
The invention is further illustrated by the following examples:
as shown in fig. 1-3, the direct-current cooling water flow control device for the engine of the present invention is composed of a cylinder body 1, a cylinder body water distribution channel 2, a cylinder sleeve water inlet 3, a cylinder sleeve water jacket 4, a cylinder sleeve 5, a cylinder sleeve water outlet 6, a cylinder cover 7, a cylinder cover water inlet hole 8, a cylinder cover and cylinder partition plate 9, a cylinder cover water collecting channel 10, a cylinder cover water outlet 11, engine cooling water 12 and a cylinder cover bottom plate 13.
The cylinder body water distribution channel 2 is positioned on the outer side of the engine cylinder body 1, each cylinder sleeve water inlet 3 is communicated with the cylinder body water distribution channel 2, a circular ring gap formed between the cylinder body 1 and the outer wall of the cylinder sleeve 5 of each cylinder is a cylinder barrel water jacket 4 of each cylinder, and a water outlet which is communicated with the cylinder barrel water jacket 4 and is positioned on the opposite side of the cylinder sleeve water inlet 3 is a cylinder barrel water jacket water outlet 6; the cylinder cover 7 is arranged above the cylinder body, a cylinder barrel water jacket water outlet 6 of each cylinder is communicated with a cylinder cover water inlet hole 8, the cylinder cover water jacket is divided into independent water jackets of each cylinder by a cylinder cover cylinder partition plate 9, the cylinder cover water collecting channel 10 is positioned on the opposite side of the cylinder cover water inlet hole 8 on the cylinder cover 7, and an outlet on one side of the cylinder cover water collecting channel 10 is a cylinder cover water outlet 11.
The water flow is specifically controlled as follows:
the engine cooling water 12 enters the cylinder block water distribution channel 2, enters the cylinder jacket 4 through each cylinder jacket water inlet 3, flows tangentially (is convenient to control and enhance the water flow speed) around the circumference of the cylinder jacket 5 to cool the cylinder jacket, and then enters the cylinder cover water inlet hole 8 from the cylinder jacket water outlet 6; in each cylinder head water jacket (the space through which water flows by dotted lines in fig. 2 pass is the cylinder head water jacket), the cylinder partition plate 9 controls the water flow to flow transversely to cool the cylinder head bottom plate 13, and the cooling water flow of each cylinder flows out of the engine from the water outlet 11 of the rear end of the engine after being collected in the water collecting channel 10 of the cylinder head.
The cooling water of the engine flows through each cylinder barrel water jacket 4 and each cylinder cover water jacket in sequence through the cylinder block water distribution channel 2, the flow rate of the cooling water entering each cylinder is controlled by the water inlet 3 of the cylinder sleeve and the section size of the water inlet hole 8 of the cylinder cover, and the cooling water of each cylinder is relatively independent, so that the cooling water of each cylinder is controlled to be uniformly distributed. Wherein, the size of the section of the cylinder cover water inlet hole 8 is adjusted and confirmed by calculation.
The cooling water flow enters from the front end of the engine cylinder body and flows out from the rear end of the engine cylinder cover after cooling the engine. The cooling water flows through each cylinder water jacket and each cylinder cover water jacket in sequence through the cylinder water distribution channel, the flow of the cooling water entering each cylinder is controlled by the section size of the cylinder water inlet hole and the cylinder cover water inlet hole, and the cooling water of each cylinder is uniformly distributed. The cooling water flows tangentially around the circumference of the cylinder sleeve in the cylinder body, so that the water flow speed is conveniently controlled and enhanced, and the cooling effect of the cylinder sleeve is improved.
Claims (4)
1. The direct-current cooling water flow control device of the engine is characterized in that: the cylinder cover water distribution channel mainly comprises a cylinder body (1), a cylinder body water distribution channel (2), a plurality of cylinder sleeve water inlets (3), a plurality of cylinder sleeve water jackets (4), a plurality of cylinder sleeves (5), a plurality of cylinder sleeve water jacket water outlets (6), a cylinder cover (7), a plurality of cylinder cover water inlet holes (8), a plurality of cylinder cover and cylinder partition plates (9), a cylinder cover water collection channel (10) and a cylinder cover water outlet (11);
the cylinder body water distribution channel (2) is positioned on the outer side of the engine cylinder body (1), the water inlet (3) of each cylinder sleeve is communicated with the cylinder body water distribution channel (2), a circular ring gap formed between the cylinder body (1) and the outer wall of the cylinder sleeve (5) of each cylinder is a cylinder barrel water jacket (4) of each cylinder, and the water outlet which is communicated with the cylinder barrel water jacket (4) and is positioned on the opposite side of the water inlet (3) of each cylinder sleeve is a cylinder barrel water jacket water outlet (6); the cylinder cover (7) is arranged above the cylinder body, a cylinder barrel water jacket water outlet (6) of each cylinder is communicated with a cylinder cover water inlet hole (8), the cylinder cover water jacket is divided into independent water jackets of each cylinder by a cylinder cover cylinder partition plate (9), the cylinder cover water collecting channel (10) is positioned on the opposite side of the cylinder cover water inlet hole (8) on the cylinder cover (7), and an outlet on one side of the cylinder cover water collecting channel (10) is the cylinder cover water outlet (11).
2. The engine direct-current cooling water flow control device according to claim 1, characterized in that: the cylinder cover comprises a cylinder sleeve water inlet (3), a cylinder barrel water jacket (4), a cylinder sleeve (5), a cylinder barrel water jacket water outlet (6), a cylinder cover (7), a cylinder cover water inlet hole (8) and a cylinder cover and cylinder partition plate (9), wherein the number of the cylinder sleeve water inlet (3), the cylinder barrel water jacket (4), the number of the cylinder sleeve water outlet (5) and.
3. The control method of the engine direct-current cooling water flow control device according to claim 1, characterized by comprising the steps of:
A. engine cooling water (12) enters the cylinder block water distribution channel (2), enters the cylinder jacket (4) through each cylinder jacket water inlet (3), flows tangentially around the circumference of the cylinder jacket (5) to cool the cylinder jacket (5), and then enters the cylinder cover water inlet holes (8) from the cylinder jacket water outlet (6);
B. the engine cooling water 12 is in each cylinder cover water jacket, the water flow is controlled by the cylinder partition plate (9) to transversely flow to cool the cylinder cover bottom plate (13), and the cooling water of each cylinder is collected in the cylinder cover water collecting channel (10) and then flows out of the engine from the water outlet (11) of the cylinder cover at the rear end of the engine.
4. The control method of the engine direct-current cooling water flow control device according to claim 1, characterized in that: the cooling water of the engine flows through each cylinder barrel water jacket (4) and each cylinder cover water jacket in sequence through the cylinder body water distribution channel (2), the flow rate of the cooling water entering each cylinder is controlled by the water inlet (3) of the cylinder sleeve and the section size of the water inlet hole (8) of the cylinder cover, and the cooling water flow of each cylinder is relatively independent, so that the cooling water is uniformly distributed to each cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911196273.7A CN110953083A (en) | 2019-11-29 | 2019-11-29 | Engine direct-current cooling water flow control device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911196273.7A CN110953083A (en) | 2019-11-29 | 2019-11-29 | Engine direct-current cooling water flow control device and control method |
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| Publication Number | Publication Date |
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| CN110953083A true CN110953083A (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911196273.7A Pending CN110953083A (en) | 2019-11-29 | 2019-11-29 | Engine direct-current cooling water flow control device and control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123894A (en) * | 2021-05-25 | 2021-07-16 | 张艳红 | Diesel engine cylinder body enhanced cooling system |
| CN114109640A (en) * | 2021-10-28 | 2022-03-01 | 力帆科技(集团)股份有限公司 | Water cooling structure for engine of motorcycle with two parallel cylinders |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201486637U (en) * | 2009-07-31 | 2010-05-26 | 奇瑞汽车股份有限公司 | Novel diesel engine cooling structure |
| CN204283642U (en) * | 2014-11-28 | 2015-04-22 | 长城汽车股份有限公司 | Engine cylinder-body and motor |
| KR101637751B1 (en) * | 2014-12-01 | 2016-07-20 | 현대자동차주식회사 | Aluminum Mono Block Engine using Inter Bore Concentration Flux type Water Jacket |
| US20180230935A1 (en) * | 2017-02-14 | 2018-08-16 | Ford Global Technologies, Llc | Cylinder block for internal combustion engine |
| CN110159446A (en) * | 2019-07-01 | 2019-08-23 | 广西玉柴机器股份有限公司 | A kind of body cooling water jacket structure of multicylinder engine |
-
2019
- 2019-11-29 CN CN201911196273.7A patent/CN110953083A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201486637U (en) * | 2009-07-31 | 2010-05-26 | 奇瑞汽车股份有限公司 | Novel diesel engine cooling structure |
| CN204283642U (en) * | 2014-11-28 | 2015-04-22 | 长城汽车股份有限公司 | Engine cylinder-body and motor |
| KR101637751B1 (en) * | 2014-12-01 | 2016-07-20 | 현대자동차주식회사 | Aluminum Mono Block Engine using Inter Bore Concentration Flux type Water Jacket |
| US20180230935A1 (en) * | 2017-02-14 | 2018-08-16 | Ford Global Technologies, Llc | Cylinder block for internal combustion engine |
| CN110159446A (en) * | 2019-07-01 | 2019-08-23 | 广西玉柴机器股份有限公司 | A kind of body cooling water jacket structure of multicylinder engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123894A (en) * | 2021-05-25 | 2021-07-16 | 张艳红 | Diesel engine cylinder body enhanced cooling system |
| CN113123894B (en) * | 2021-05-25 | 2024-01-12 | 张艳红 | Enhanced cooling system for diesel engine cylinder block |
| CN114109640A (en) * | 2021-10-28 | 2022-03-01 | 力帆科技(集团)股份有限公司 | Water cooling structure for engine of motorcycle with two parallel cylinders |
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Application publication date: 20200403 |