CN110985183A - Engine with top-down cooling structure - Google Patents
Engine with top-down cooling structure Download PDFInfo
- Publication number
- CN110985183A CN110985183A CN201911419793.XA CN201911419793A CN110985183A CN 110985183 A CN110985183 A CN 110985183A CN 201911419793 A CN201911419793 A CN 201911419793A CN 110985183 A CN110985183 A CN 110985183A
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- Prior art keywords
- water
- cylinder
- water jacket
- cylinder head
- inlet pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/08—Arrangements of lubricant coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
- F01P2003/028—Cooling cylinders and cylinder heads in series
Abstract
The invention discloses an engine with a top-down cooling structure, which belongs to the technical field of engines and comprises a cylinder block and a cylinder cover, wherein the cylinder cover is arranged at the top of the cylinder block, and a cylinder block water jacket and a cylinder cover water jacket which are respectively arranged in the cylinder block and the cylinder cover, a water drainage hole is arranged between the cylinder cover and the cylinder block water jacket and is arranged at the front end of the air inlet side of each cylinder block, water outlet holes are respectively arranged in the cylinder block water jacket in each cylinder block, and the water outlet holes are respectively arranged in an opposite angle with the water drainage holes. The invention can realize the purposes of higher cooling efficiency of the cylinder body and the cylinder cover, smaller heat dissipation of the water jacket, improved heat efficiency of the engine, reduced power consumption of the water pump and improved reliability of a cooling system.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an engine with a top-down cooling structure.
Background
The engine is used as a power supply device, and the output efficiency of the engine directly influences the power of the machine. The cooling structure and the local structure of a water flow field in the engine are not good enough, the cooling efficiency and the cooling of each cylinder are not uniform, and the reliability problems of the nose bridge region of the cylinder cover, the cavitation erosion of the cylinder cover and the like are hidden troubles influencing the efficiency of the engine; and the resistance of a cooling system is large, the power consumption of a water pump is high, the reliability of the system is reduced, and the efficiency of the engine is low.
Disclosure of Invention
Aiming at the problems, the invention provides the engine with the top-down cooling structure, which can achieve the purposes of higher cooling efficiency of the cylinder body and the cylinder cover, smaller heat dissipation capacity of the water jacket, improved heat efficiency of the engine, reduced power consumption of a water pump and improved reliability of a cooling system.
The invention adopts the following technical scheme to realize the purpose:
an engine with a top-down cooling structure comprises a cylinder block and a cylinder cover, wherein the cylinder cover is arranged at the top of the cylinder block, and a cylinder block water jacket and a cylinder cover water jacket which are respectively arranged in the cylinder block and the cylinder cover; the engine oil cooling module assembly comprises an integrated engine oil cooler, a water pump volute, a water pump water inlet pipe mounting interface, a cylinder cover water inlet pipe mounting interface and a thermostat base mounting interface, wherein a water pump is arranged on the water pump volute, an engine water inlet pipe is arranged on the water pump water inlet pipe mounting interface, a cylinder cover water inlet pipe is arranged on the cylinder cover water inlet pipe mounting interface, a thermostat base is arranged on the thermostat base mounting interface, an EGR cooler is arranged on the thermostat base, a support is arranged on the cylinder cover water inlet pipe, and the cylinder cover water inlet pipe is connected with the EGR cooler through the support;
the engine water inlet pipe is communicated with a water pump, the water pump is respectively connected with the engine oil cooler and the water inlet of the cylinder cover water inlet pipe, the water outlet of the cylinder cover water inlet pipe is connected with the water inlet of the cylinder cover water jacket, the water outlet of the cylinder cover water jacket is connected with the water drainage hole of the cylinder cover water jacket, the water drainage hole of the cylinder cover water jacket is connected with the EGR cooler, finally, the water outlets of the engine oil cooler and the EGR cooler are respectively connected with the thermostat seat, and the water outlet of the thermostat seat; the side of cylinder block still is provided with common rail outlet pipe, the apopore all is linked together with common rail outlet pipe, and just communicates with the EGR cooler through common rail outlet pipe. Due to the structural arrangement, the uneven cooling of the cylinder block can be avoided, the cooling efficiency is improved, the cracking of a nose bridge area of the cylinder cover is reduced, the cavitation erosion of the cylinder cover is reduced, the reliability of the cylinder cover is improved, and the heat dissipation capacity of the water jacket is smaller; meanwhile, the overall resistance of the cooling system is reduced, the power consumption of a water pump is reduced, the integration level of the cooling system is higher, the reliability of the cooling system is improved, and the thermal efficiency of an engine is improved.
Preferably, the cylinder cover water jacket comprises a cylinder cover upper water jacket and a cylinder cover lower water jacket which are communicated with each other, the cylinder cover upper water jacket is arranged at the upper part of the cylinder cover water jacket, the cylinder cover lower water jacket is arranged at the lower part, the cylinder cover upper water jacket is communicated with the cylinder cover water inlet pipe, and a water outlet of the cylinder cover lower water jacket is connected with the cylinder cover water jacket. Such setting can utilize the operation personnel to maintain, makes things convenient for water inlet and delivery port to arrange simultaneously.
Preferably, the EGR cooler is provided on a side surface of the cylinder head. The arrangement makes the whole structure more compact, occupies small space and does not influence the efficiency of the engine.
The invention has the beneficial effects that:
the engine with the top-down cooling structure can avoid uneven cooling of the cylinder block, improve the cooling efficiency, reduce the cracking of the nose bridge area of the cylinder cover and reduce the cavitation erosion of the cylinder cover, thereby improving the reliability of the cylinder cover and reducing the heat dissipation capacity of the water jacket; meanwhile, the overall resistance of the cooling system is reduced, the power consumption of a water pump is reduced, the integration level of the cooling system is higher, the reliability of the cooling system is improved, and the thermal efficiency of an engine is improved.
Drawings
FIG. 1 is a schematic diagram of an engine cooling system according to an embodiment of the present invention;
FIG. 2 is a schematic view of a water jacket provided by an embodiment of the present invention;
fig. 3 is a schematic view of a common rail water outlet pipe section provided in the embodiment of the present invention;
FIG. 4 is a schematic view of a slice of an F-F cylinder head water jacket and a block water jacket in communication according to an embodiment of the invention;
fig. 5 is a schematic view of a slice of the J-J upper-layer cylinder head water jacket and the lower-layer cylinder head water jacket in communication according to the embodiment of the invention.
In the figure: 1-cylinder block, 2-cylinder head, 3-cylinder block water jacket, 4-cylinder head water jacket, 41-cylinder head upper water jacket, 42-cylinder head lower water jacket, 5-engine oil cooler, 6-water pump, 7-engine water inlet pipe, 8-cylinder head water inlet pipe, 9-thermostat seat, 10-EGR cooler, 11-water outlet hole, 12-water outlet hole, 13-common rail water outlet pipe, 14-cylinder block water outlet pipe, 15-engine water outlet pipe, 16-two-valve interval water outlet channel, and 17-two-inlet valve interval water outlet channel.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings 1 to 5 and the detailed description.
As shown in fig. 1, for an embodiment of the present invention, there is provided an engine with a top-down cooling structure, including a cylinder block 1, a cylinder head 2, the cylinder head 2 being disposed on top of the cylinder block 1, and a cylinder block water jacket 3 and a cylinder head water jacket 4 respectively disposed in the cylinder block 1 and the cylinder head 2, wherein a drain hole 11 is disposed between the cylinder head 2 and the cylinder block water jacket 3, the drain hole 11 is disposed at a front end of an intake side of each cylinder block 1, the cylinder block water jacket 3 in each cylinder block 1 is respectively provided with a drain hole 12, and the drain holes 12 are respectively disposed diagonally to the drain hole 11; the engine oil cooling module assembly comprises an integrated engine oil cooler 5, a water pump volute, a water pump water inlet pipe mounting interface, a cylinder cover water inlet pipe mounting interface and a thermostat base mounting interface, wherein a water pump 6 is arranged on the water pump volute, an engine water inlet pipe 15 is arranged on the water pump water inlet pipe mounting interface, a cylinder cover water inlet pipe 8 is arranged on the cylinder cover water inlet pipe mounting interface, a thermostat base 9 is arranged on the thermostat base mounting interface, an EGR cooler 10 is arranged on the thermostat base 9, a support is arranged on the cylinder cover water inlet pipe 8, and the cylinder cover water inlet pipe 8 is connected with the EGR cooler 10 through the support;
the engine water inlet pipe 7 is communicated with a water pump 6, the water pump 6 is respectively connected with water inlets of an engine oil cooler 5 and a cylinder head water inlet pipe 8, a water outlet of the cylinder head water inlet pipe 8 is connected with a water inlet of a cylinder head water jacket 4, a water outlet of the cylinder head water jacket 4 is connected with a water outlet hole 11 of the cylinder head water jacket 3, a water outlet hole 12 of the cylinder head water jacket 3 is connected with an EGR cooler 10, finally, water outlets of the engine oil cooler 5 and the EGR cooler 10 are respectively connected with a thermostat base 9, and a water outlet of the thermostat base 9 is connected with an;
the side of the cylinder body 1 is also provided with a common rail water outlet pipe 13, and the water outlet holes 12 are communicated with the common rail water outlet pipe 13 and communicated with the EGR cooler 10 through the common rail water outlet pipe 13.
Further, the cylinder head water jacket 4 comprises a cylinder head upper layer water jacket 41 and a cylinder head lower layer water jacket 42 which are communicated with each other, the cylinder head upper layer water jacket 41 is arranged at the upper part of the cylinder head water jacket 4, the cylinder head lower layer water jacket 42 is arranged at the lower part of the cylinder head water jacket 4, the cylinder head upper layer water jacket 41 is communicated with the cylinder head water inlet pipe 8, and the water outlet of the cylinder head lower layer water jacket 42 is connected with the cylinder block water jacket 3. Such an arrangement may facilitate maintenance by the operator while facilitating the spatial arrangement of the cylinder block 1 and the cylinder head 2.
Further, the EGR cooler 10 is provided on the side of the cylinder head 2. The arrangement makes the whole structure more compact, occupies small space and does not influence the efficiency of the engine.
The engine with the top-down cooling structure can avoid uneven cooling of the cylinder block, improve the cooling efficiency, reduce the cracking of the nose bridge area of the cylinder cover and reduce the cavitation erosion of the cylinder cover, thereby improving the reliability of the cylinder cover and reducing the heat dissipation capacity of the water jacket; meanwhile, the overall resistance of the cooling system is reduced, the power consumption of a water pump is reduced, the integration level of the cooling system is higher, the reliability of the cooling system is improved, and the thermal efficiency of an engine is improved.
Claims (3)
1. An engine with a top-down cooling structure comprises a cylinder block (1) and a cylinder head (2), wherein the cylinder head (2) is arranged at the top of the cylinder block (1), and a cylinder block water jacket (3) and a cylinder head water jacket (4) which are respectively arranged in the cylinder block (1) and the cylinder head (2), and is characterized in that a drain hole (11) is arranged between the cylinder head (2) and the cylinder block water jacket (3), the drain hole (11) is arranged at the front end of the air inlet side of each cylinder block (1), the cylinder block water jacket (3) in each cylinder block (1) is respectively provided with a water outlet hole (12), and the water outlet holes (12) are respectively arranged diagonally to the drain holes (11); the engine oil cooling system is characterized by further comprising an engine oil cooling module assembly arranged on one side of the cylinder block (1), wherein the engine oil cooling module assembly comprises an integrated engine oil cooler (5), a water pump volute, a water pump water inlet pipe mounting interface, a cylinder cover water inlet pipe mounting interface and a thermostat seat mounting interface, a water pump (6) is arranged on the water pump volute, an engine water inlet pipe (15) is arranged on the water pump water inlet pipe mounting interface, a cylinder cover water inlet pipe (8) is arranged on the cylinder cover water inlet pipe mounting interface, a thermostat seat (9) is arranged on the thermostat seat mounting interface, an EGR cooler (10) is arranged on the thermostat seat (9), a support is arranged on the cylinder cover water inlet pipe (8), and the cylinder cover water inlet pipe (8) is connected with the EGR cooler (10) through;
the engine water inlet pipe (7) is communicated with a water pump (6), the water pump (6) is respectively connected with an engine oil cooler (5) and a water inlet of a cylinder cover water inlet pipe (8), a water outlet of the cylinder cover water inlet pipe (8) is connected with a water inlet of a cylinder cover water jacket (4), a water outlet of the cylinder cover water jacket (4) is connected with a water drainage hole (11) of the cylinder cover water jacket (3), a water drainage hole (12) of the cylinder cover water jacket (3) is connected with an EGR cooler (10), finally, water outlets of the engine oil cooler (5) and the EGR cooler (10) are respectively connected with a thermostat base (9), and a water outlet of the thermostat base (9) is connected with an engine water;
the side of cylinder block (1) still is provided with common rail outlet pipe (13), apopore (12) all are linked together with common rail outlet pipe (13), and communicate with EGR cooler (10) through common rail outlet pipe (13).
2. A top-down cooling structured engine according to claim 1, wherein the cylinder head water jacket (4) comprises a cylinder head upper water jacket (41) and a cylinder head lower water jacket (42) which are communicated with each other, the cylinder head upper water jacket (41) is arranged at the upper part of the cylinder head water jacket (4), the cylinder head lower water jacket (42) is arranged at the lower part of the cylinder head water jacket (4), the cylinder head upper water jacket (41) is communicated with the cylinder head water inlet pipe (8), and the water outlet of the cylinder head lower water jacket (42) is connected with the cylinder block water jacket (3).
3. A top-down cooling arrangement engine according to claim 1, characterized in that the EGR cooler (10) is arranged at the side of the cylinder head (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911419793.XA CN110985183A (en) | 2019-12-31 | 2019-12-31 | Engine with top-down cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911419793.XA CN110985183A (en) | 2019-12-31 | 2019-12-31 | Engine with top-down cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110985183A true CN110985183A (en) | 2020-04-10 |
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ID=70080278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911419793.XA Pending CN110985183A (en) | 2019-12-31 | 2019-12-31 | Engine with top-down cooling structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN110985183A (en) |
Citations (8)
| 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 |
| CN102269040A (en) * | 2010-06-04 | 2011-12-07 | 广西玉柴机器股份有限公司 | Method for degassing diesel engine cooling system |
| CN102400764A (en) * | 2011-12-05 | 2012-04-04 | 中国重汽集团济南动力有限公司 | Engine cooling circulation device |
| CN103670653A (en) * | 2012-09-11 | 2014-03-26 | 北汽福田汽车股份有限公司 | Cooling system for vehicle engine and automobile with cooling system |
| CN203626939U (en) * | 2013-10-31 | 2014-06-04 | 长城汽车股份有限公司 | Cooling system of engine and engine |
| CN104500202A (en) * | 2014-11-29 | 2015-04-08 | 华晨汽车集团控股有限公司 | Structure of engine cooling system |
| JP2015113706A (en) * | 2013-12-09 | 2015-06-22 | マツダ株式会社 | Cooling structure of engine |
| CN108397314A (en) * | 2018-02-07 | 2018-08-14 | 贵阳吉利发动机有限公司 | Cooling system for recycled exhaust gas, egr system and cooling system for recycled exhaust gas control method |
-
2019
- 2019-12-31 CN CN201911419793.XA patent/CN110985183A/en active Pending
Patent Citations (8)
| 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 |
| CN102269040A (en) * | 2010-06-04 | 2011-12-07 | 广西玉柴机器股份有限公司 | Method for degassing diesel engine cooling system |
| CN102400764A (en) * | 2011-12-05 | 2012-04-04 | 中国重汽集团济南动力有限公司 | Engine cooling circulation device |
| CN103670653A (en) * | 2012-09-11 | 2014-03-26 | 北汽福田汽车股份有限公司 | Cooling system for vehicle engine and automobile with cooling system |
| CN203626939U (en) * | 2013-10-31 | 2014-06-04 | 长城汽车股份有限公司 | Cooling system of engine and engine |
| JP2015113706A (en) * | 2013-12-09 | 2015-06-22 | マツダ株式会社 | Cooling structure of engine |
| CN104500202A (en) * | 2014-11-29 | 2015-04-08 | 华晨汽车集团控股有限公司 | Structure of engine cooling system |
| CN108397314A (en) * | 2018-02-07 | 2018-08-14 | 贵阳吉利发动机有限公司 | Cooling system for recycled exhaust gas, egr system and cooling system for recycled exhaust gas control method |
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| PB01 | Publication | ||
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Application publication date: 20200410 |