CN111810311A - Engine cooling water jacket structure and engine - Google Patents

Engine cooling water jacket structure and engine Download PDF

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Publication number
CN111810311A
CN111810311A CN201910291322.9A CN201910291322A CN111810311A CN 111810311 A CN111810311 A CN 111810311A CN 201910291322 A CN201910291322 A CN 201910291322A CN 111810311 A CN111810311 A CN 111810311A
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CN
China
Prior art keywords
water jacket
cylinder
cooling
passage
engine
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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.)
Pending
Application number
CN201910291322.9A
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Chinese (zh)
Inventor
何炎迎
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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Publication date
Application filed by Guangzhou Automobile Group Co Ltd filed Critical Guangzhou Automobile Group Co Ltd
Priority to CN201910291322.9A priority Critical patent/CN111810311A/en
Publication of CN111810311A publication Critical patent/CN111810311A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00Cylinders; Cylinder heads 
    • F02F1/02Cylinders; Cylinder heads  having cooling means
    • F02F1/10Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/14Cylinders with means for directing, guiding or distributing liquid stream
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00Cylinders; Cylinder heads 
    • F02F1/24Cylinder heads
    • F02F1/26Cylinder heads having cooling means
    • F02F1/36Cylinder heads having cooling means for liquid cooling
    • F02F1/40Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00Arrangements of sealings in combustion engines 
    • F02F11/005Arrangements of sealings in combustion engines  involving cylinder liners

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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 provides an engine cooling water jacket structure, which comprises a cylinder body water jacket arranged outside a multi-cylinder body and a cylinder cover water jacket arranged at the top end of the cylinder body water jacket, wherein the cylinder body water jacket comprises a first cylinder body water jacket, a second cylinder body water jacket and a third cylinder body water jacket which are arranged outside a cylinder hole of a cylinder, the cylinder cover water jacket comprises a first cylinder cover water jacket for cooling a combustion chamber and a second cylinder cover water jacket for cooling an exhaust manifold, and the third cylinder cover water jacket is communicated with the water outlets of the second cylinder water jacket and the third cylinder water jacket, the water outlet of the first cylinder water jacket is respectively communicated with the second cylinder water jacket, the first cylinder water jacket and the second cylinder water jacket, the water outlets of the first cylinder water jacket and the second cylinder water jacket are communicated with the third cylinder water jacket, cooling liquid flowing into the second cylinder water jacket through the first cylinder water jacket is discharged through the third cylinder water jacket, and the cooling liquid flowing into the first cylinder water jacket and the second cylinder water jacket through the first cylinder water jacket flows into the third cylinder water jacket and is discharged through the third cylinder water jacket. The invention also provides an engine.

Description

Engine cooling water jacket structure and engine
Technical Field
The invention relates to the field of cooling of a multi-cylinder internal combustion engine cylinder body, in particular to an engine cooling water jacket structure and an engine.
Background
The engine water jacket, generally only need to be cooled the design coolant passage, this design has the problem: the cylinders of the engine cannot be uniformly cooled. In the existing technical scheme, the problem that a cylinder body and a cylinder cover can be cooled and radiated is generally only considered, and the problem is solved by designing a layer of cooling liquid jacket outside a cylinder, although the scheme is simple in structure, the realized function is single, and uniform cooling of each cylinder on the cylinder cover cannot be realized, so that unnecessary heat loss on the cylinder cover is caused, the scheme is limited by the total performance (namely the total performance of cooling) of a water pump, the heat efficiency cannot be further improved by improving the compression ratio of an engine, and the potential of reducing the oil consumption of the engine is further limited.
Therefore, in the prior art, in order to ensure that all cylinders can be sufficiently cooled, the purpose is usually achieved by increasing the flow rate of the water pump, but partial cylinders are excessively cooled, so that unnecessary energy loss is caused; meanwhile, because unnecessary heat dissipation of the cylinder block is difficult to avoid, and the cooling requirement of the cylinder head is generally higher than that of the cylinder block, it is very important how to design a cooling liquid jacket structure on the cylinder head to realize uniform heat dissipation of all cylinders and meet the cooling requirement of the cylinder head.
Disclosure of Invention
In view of the above, it is necessary to provide an engine cooling water jacket structure and an engine, which can meet the cooling requirement of the cylinder head itself and ensure uniform heat dissipation of each cylinder.
The invention provides an engine cooling water jacket structure, which comprises a cylinder body water jacket arranged outside a multi-cylinder body and a cylinder cover water jacket arranged at the top end of the cylinder body water jacket, wherein the cylinder body water jacket comprises a first cylinder body water jacket, a second cylinder body water jacket and a third cylinder body water jacket which are arranged outside a cylinder hole of a cylinder, the cylinder cover water jacket comprises a first cylinder cover water jacket for cooling a combustion chamber, a second cylinder cover water jacket for cooling an exhaust manifold and a third cylinder cover water jacket for communicating the second cylinder body water jacket with a water outlet of the third cylinder body water jacket, the water outlet of the first cylinder body water jacket is communicated with the second cylinder body water jacket, the first cylinder cover water jacket and the second cylinder cover water jacket, the water outlets of the first cylinder cover water jacket and the second cylinder cover water jacket are communicated with the third cylinder cover water jacket, and cooling liquid flowing into the second cylinder body water jacket through the first cylinder body water jacket is discharged through the third cylinder cover water jacket, and the cooling liquid flowing into the first cylinder cover water jacket and the second cylinder cover water jacket through the first cylinder cover water jacket flows into the third cylinder cover water jacket through the third cylinder cover water jacket and is discharged.
Further, the first cylinder water jacket is a water pump volute integrated at the front end of the cylinder body, and the second cylinder water jacket and the third cylinder water jacket are independent from each other.
Further, the first cylinder cover water jacket comprises a first cooling channel communicated with a water inlet of the first cylinder cover water jacket, a second cooling channel communicated with the first cooling channel, a third cooling channel formed by shunting of the second cooling channel and a backflow channel formed at an outlet end of the third cooling channel, the third cooling channel is distributed outside each cylinder combustion chamber, and a water outlet of the backflow channel is communicated with the third cylinder water jacket.
Further, the third cooling passage is a "lateral cooling passage" provided between the outlet of the second cooling passage and the inlet of the return passage.
Furthermore, the outlets of the second cooling channels are multiple and have the same inner diameter, and the outlets of the backflow channels correspond to the cylinder bodies one to one.
Further, the second cylinder head water jacket includes a first flow passage communicated with the first cylinder head water jacket, a second flow passage and a third flow passage formed by branching from a water outlet of the first flow passage, and a fourth flow passage formed by merging ends of the second flow passage and the third flow passage, a water outlet of the fourth flow passage is communicated with the third cooling passage, and the coolant flowing into the first flow passage flows into the second flow passage and the third flow passage, flows into the third cooling passage after merging into the fourth flow passage, and flows into the third cylinder head water jacket through the fourth cooling passage.
Further, the exhaust manifold is integrated with the cylinder head, and the exhaust manifold is sandwiched between the second flow channel and the third flow channel.
Further, the engine cooling water jacket structure further comprises a cylinder gasket communicating the cylinder cover water jacket with the cylinder body water jacket, and the cylinder gasket comprises a first water feeding port communicating the first cylinder cover water jacket with the first cylinder body water jacket and a second water feeding port communicating the second cylinder cover water jacket with the first cylinder body water jacket.
Further, the cylinder gasket comprises a water outlet and a third water supply port which are communicated with a water outlet of the second cylinder water jacket and a water inlet of the third cylinder water jacket, a water return port which is communicated with a water outlet of the return channel and a water inlet of the third cylinder water jacket, and a fourth water supply port which is communicated with a water outlet of the third cylinder water jacket and a water inlet of the third cylinder water jacket.
The invention also provides an engine, which comprises the engine cooling water jacket structure.
In conclusion, the first cylinder body water jacket and the second cylinder body water jacket, the first cylinder cover water jacket and the second cylinder cover water jacket are connected in parallel through the design of the structures of the cylinder body water jacket and the cylinder cover water jacket, so that the cylinder hole of the cylinder body of the engine cylinder, the combustion chamber and the exhaust manifold are cooled; meanwhile, a second cooling channel for stabilizing hydraulic pressure is further arranged in the water jacket of the first cylinder body, and a third cooling channel for forming a transverse cooling channel is formed by shunting on the second cooling channel, so that the uniform cooling of each cylinder combustion chamber of the engine is realized, and the compression ratio and the thermal efficiency of the engine are improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of an engine cooling water jacket structure provided by the present invention;
FIG. 2 is a schematic structural view of the block jacket of FIG. 1;
FIG. 3 is a schematic structural view of the cylinder head jacket of FIG. 1;
FIG. 4 is a schematic structural diagram of a cylinder head gasket in an engine cooling water jacket structure according to the present invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1 to 4, the present invention provides an engine cooling water jacket structure including a block water jacket 10 provided on the outer side of a plurality of cylinders on an engine and a head water jacket 20 provided on the top end of the block water jacket 10.
As shown in fig. 1 and 2, the block water jacket 10 of the present invention includes a first block water jacket 11, a second block water jacket 12 and a third block water jacket 13 provided outside a cylinder bore on an engine, and the second block water jacket 12 and the third block water jacket 13 are independent from each other (the second block water jacket 12 and the third block water jacket 13 are not communicated). In a preferred embodiment, the first block water jacket 11 and the third block water jacket 13 are respectively positioned at two sides of the second block water jacket 12, and the first block water jacket 11 is a water pump volute integrated at the front end of the cylinder block and used for providing cooling liquid for cooling the engine cylinder block.
As shown in fig. 3, the head water jacket 20 of the present invention includes a first head water jacket 21 that cools the combustion chamber, a second head water jacket 22 that cools the exhaust manifold (provided on the head of the engine), and a third head water jacket 23 that communicates the water outlets of the second and third block water jackets 12 and 13.
Referring to fig. 1 and 2 again, in the present invention, the water outlet of the first cylinder water jacket 11 is communicated with the second cylinder water jacket 12, the first cylinder water jacket 21 and the second cylinder water jacket 22, and the water outlets of the first cylinder water jacket 21 and the second cylinder water jacket 22 are communicated with the third cylinder water jacket 13, so that the coolant flowing out through the first cylinder water jacket 11 is divided into three streams of coolant to flow into the second cylinder water jacket 12, the first cylinder water jacket 21 and the second cylinder water jacket 22, respectively, and the coolant flowing into the second cylinder water jacket 12 directly cools the cylinder of the engine, and then flows into the third cylinder water jacket 23 and is discharged out of the engine directly; referring to fig. 3 together, at the same time, the coolant flowing into the first cylinder head water jacket 21 firstly flows back to the third cylinder head water jacket 13, and flows into the third cylinder head water jacket 23 from the water outlet of the third cylinder head water jacket 13, and finally the coolant is discharged out of the engine, so as to cool the cylinder head combustion chamber of the engine; the cooling liquid flowing into the second cylinder cover water jacket 22 flows through an exhaust manifold on the engine cylinder cover to cool the exhaust manifold, then flows into the third cylinder cover water jacket 13 through the first cylinder cover water jacket 21, and finally flows into the third cylinder cover water jacket 23 through a water outlet of the third cylinder cover water jacket 13 to discharge the cooling liquid out of the engine.
Specifically, the first head water jacket 21 provided by the present invention includes a first cooling passage 21a communicating with the water inlet of the first head water jacket 21, a second cooling passage 21b communicating with the first cooling passage 21a, a plurality of third cooling passages 21c formed by branching the second cooling passage 21b, and a return passage 21d formed at the outlet end of the third cooling passages 21c (refer to fig. 1 and 3 with emphasis), because the third cooling channel 21 is distributed outside the combustion chambers of the cylinders of the engine, the water outlet of the return channel 21d is communicated with the water inlet of the third cylinder water jacket 13, the water outlet of the third cylinder water jacket 13 is communicated with the third cylinder cover water jacket 23, so that the cooling liquid flowing into the return channel 21d through the third cooling channel 21c flows into the third cylinder water jacket 13, then flows into the third cylinder cover water jacket 23 through the water outlet of the third cylinder water jacket 13 and is discharged, and the cooling of the combustion chamber of each cylinder of the engine is realized.
In an embodiment of the present invention, the outlets of the second cooling passages 21b are plural and have the same inner diameter (the coolant flowing from each outlet of the second cooling passages 21b into the third cooling passages 21c is ensured to be uniform), the third cooling passages 21c are "transverse cooling passages" provided between the outlets of the second cooling passages 21b and the inlets of the return passages (the cooling passages formed from the front end to the rear end of the engine are "longitudinal cooling passages", and thus "transverse cooling passages" can be understood as cooling passages formed along the left and right sides of the engine), and the outlets of the return passages 21d correspond to the cylinder blocks of the engine one-to-one to realize "cross flow cooling" of the combustion chambers of the cylinders of the engine.
In the invention, the second cooling channel 21b is additionally arranged before the cooling liquid enters the combustion chamber for cooling, so that the function of storing the cooling liquid and stabilizing the cooling liquid pressure in the second cooling channel 21b can be achieved, the cooling liquid flowing out of the first cooling channel 21b firstly flows into and fills the second cooling channel 21b, and then is uniformly distributed to the third cooling channel 21c through the second cooling channel 21b, and the problem that the cooling liquid directly flows into a plurality of third cooling channels 21c with different positions to cause different cooling degrees due to different dosage is avoided; meanwhile, the third cylinder water jacket 13 connected with the cooling liquid flowing out of the return channel 21d to stabilize the hydraulic pressure at the outlet of the return channel 21d is additionally arranged, so that the cooling liquid is favorably guided to uniformly flow to the third cooling channel 21c to uniformly cool the combustion chambers of the cylinders of the engine.
Further, referring again to fig. 3, the second head water jacket 22 includes a first flow passage 22a communicating with the first block water jacket, a second flow passage 22b and a third flow passage 22c formed by branching from the water outlet of the first flow passage 22a, and a fourth flow passage 22d formed by merging at the ends of the second flow passage 22b and the third flow passage 22 c; correspondingly, the exhaust manifold is integrated on the cylinder head of the engine, the exhaust manifold is clamped between the second flow passage 22b and the third flow passage 22c, the water outlet of the fourth flow passage 22d is communicated with the third cooling passage 12c, so that the cooling liquid flowing into the first flow passage 22a is divided to flow into the second flow passage 22b and the third flow passage 22c to cool the exhaust manifold on the cylinder head of the engine, then the cooling liquid is merged to flow into the fourth flow passage 22d and then flows into the third cooling passage 21c, then flows into the third cylinder water jacket 13 from the third cooling passage 21c through the fourth cooling passage 21d, finally flows into the third cylinder water jacket 23 from the third cylinder water jacket 13 and then is discharged out of the engine, due to the action of the third cylinder water jacket 13, the cooling liquid is uniformly divided to flow into the second flow passage 22b and the third flow passage 22c to realize the uniform cooling action on the upper and lower sides of the exhaust manifold, and the cooling liquid cooled through the exhaust manifold flows into the third cooling passage 21c again to realize the uniform cooling action on the upper and lower sides of the exhaust The further cooling of lid combustion chamber effectively utilizes the cooling capacity of water pump, avoids unnecessary calorific loss.
The present invention leads the isothermal water flow of the second cooling passage 21b and the first flow passage 22a to be divided evenly by using the low pressure at the water outlet of the third cylinder head water jacket 23.
In the invention, the engine cooling water jacket structure further comprises a cylinder gasket 30 communicating the cylinder body water jacket 10 and the cylinder cover water jacket 20. In a preferred embodiment, the head water jacket 20, the head gasket 30 and the block water jacket 10 are stacked from top to bottom and are fastened and installed by bolts, so that the block water jacket 10 communicates with the head water jacket 20 through the head gasket 30.
Specifically, as shown in fig. 4, the cylinder gasket 30 includes a first water inlet 31 for communicating the water outlet of the first cylinder head water jacket 21 with the water inlet of the first cylinder head water jacket 11, a second water inlet 32 for communicating the water outlet of the second cylinder head water jacket 22 with the water inlet of the first cylinder head water jacket 11, a third water inlet 33 for communicating the water outlet of the second cylinder head water jacket 12 with the water inlet of the third cylinder head water jacket 23, a water return 34 for communicating the water outlet of the return passage 21d with the water inlet of the third cylinder head water jacket 13, and a fourth water inlet 35 for communicating the water outlet of the third cylinder head water jacket 13 with the water inlet of the third cylinder head water jacket 23, and the cylinder gasket 30 provided by the present invention can not only achieve the communication function, but also accurately control the water flow into the cylinder bores of the engine by controlling the size of the water inlet of the first cylinder head water jacket 11 into the first cylinder head water jacket 21, and the size of the first water inlet 31 and the second water inlet 32 The flow and the flow speed of the cooling liquid of the combustion chamber of the cylinder head of the engine cylinder and the exhaust manifold of the cylinder head are used for controlling the water inflow, so that the cooling of the three parts is accurately controlled, the temperature of the three parts is effectively controlled, and the inflation loss can be reduced to improve the power of the engine; the effective work utilization rate of the water pump is improved, unnecessary heat loss is avoided, and the oil consumption of the engine can be reduced.
The invention also provides an engine, which comprises the engine cooling water jacket structure. With regard to the specific structure and content of the multi-cylinder engine and the specific connection structure and content of the cylinder and the cylinder block of the engine, reference may be made to the prior art, which will not be described herein in detail.
In summary, the invention realizes the cooling of the cylinder bore, the combustion chamber and the exhaust manifold of the cylinder body of the engine cylinder by the parallel connection of the first cylinder water jacket and the second cylinder water jacket, the first cylinder water jacket and the second cylinder water jacket through the design of the structures of the cylinder water jacket and the cylinder cover water jacket; meanwhile, a second cooling channel for stabilizing hydraulic pressure is further arranged in the water jacket of the first cylinder body, and a third cooling channel for forming a transverse cooling channel by shunting on the second cooling channel is further arranged, so that the uniform cooling of each cylinder combustion chamber of the engine is realized, and the compression ratio and the heat efficiency of the engine are improved; meanwhile, the flow of the cooling liquid flowing into the cylinder cover water jacket is controlled by adjusting the size of the through hole on the cylinder gasket between the cylinder body water jacket and the cylinder cover water jacket, the cooling effect on the cylinder hole of the cylinder body of the engine cylinder, the exhaust manifold and the combustion chamber is accurately controlled, and the oil consumption of the engine is reduced.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides an engine cooling water jacket structure, its is including locating outer cylinder body water jacket (10) of multicylinder cylinder body and locating cylinder cover water jacket (20) on cylinder body water jacket (10) top, its characterized in that, cylinder body water jacket (10) include first cylinder body water jacket (11), locate second cylinder body water jacket (12) and third cylinder body water jacket (13) outside the cylinder bore, cylinder cover water jacket (20) are including first cylinder cover water jacket (21) of cooling combustion chamber, the second cylinder cover water jacket (22) of cooling exhaust manifold and communicate second cylinder body water jacket (12) and the third cylinder cover water jacket (23) of the delivery port of third cylinder body water jacket (13), the delivery port of first cylinder body water jacket (11) communicates respectively second cylinder body water jacket (12), first cylinder cover water jacket (21) and second cylinder cover water jacket (22), first cylinder cover water jacket (21) and the delivery port of second cylinder cover water jacket (22) communicate third cylinder cover water jacket (23) of delivery port (13) And the cooling liquid flowing into the second cylinder water jacket (12) through the first cylinder water jacket (11) is discharged through the third cylinder water jacket (23), and the cooling liquid flowing into the first cylinder water jacket (21) and the second cylinder water jacket (22) through the first cylinder water jacket (11) flows into the third cylinder water jacket (23) through the third cylinder water jacket (13) and is discharged.
2. The engine cooling water jacket structure according to claim 1, wherein the first block water jacket (11) is a water pump volute integrated at a front end of a cylinder block, and the second block water jacket (12) and the third block water jacket (13) are independent from each other.
3. The engine cooling water jacket structure according to claim 1, wherein the first head water jacket (21) includes a first cooling passage (21a) communicating with a water inlet of the first head water jacket (21), a second cooling passage (21b) communicating with the first cooling passage (21a), a third cooling passage (21c) formed by branching of the second cooling passage (21b), and a return passage (21d) formed at an outlet end of the third cooling passage (21c), the third cooling passage (21c) is distributed outside each combustion chamber of the engine, and a water outlet of the return passage (21d) communicates with the third head water jacket (13).
4. The engine cooling water jacket structure according to claim 3, characterized in that the third cooling passage (21c) is a "lateral cooling passage" provided between an outlet of the second cooling passage (21b) and an inlet of the return passage (21 d).
5. The engine cooling water jacket structure according to claim 4, wherein the outlets of the second cooling passages (21b) are plural and have the same inside diameter, and the outlets of the return passages (21d) are in one-to-one correspondence with cylinder blocks.
6. The engine cooling water jacket structure according to claim 5, wherein the second block water jacket (22) includes a first flow passage (22a) communicating with the first block water jacket (11), a second flow passage (22b) and a third flow passage (22c) formed by branching from a water outlet of the first flow passage (22a), and a fourth flow passage (22d) formed by merging ends of the second flow passage (22b) and the third flow passage (22c), the water outlet of the fourth flow passage (22d) is communicated with the third cooling channel (21c), the cooling liquid flowing into the first flow passage (22a) flows into the second flow passage (22b) and the third flow passage (22c), flows into the third cooling passage (21c) after merging into the fourth flow passage (22d), and flows into the third block water jacket (13) through the fourth cooling passage (21 d).
7. The engine cooling water jacket structure according to claim 6, wherein the exhaust manifold is integrated on the cylinder head, the exhaust manifold being sandwiched between the second flow passage (22b) and the third flow passage (22 c).
8. The engine cooling water jacket structure according to claim 6 or 7, characterized in that the engine cooling water jacket structure further includes a cylinder head gasket (30) that communicates the head water jacket (20) with the block water jacket (10), the cylinder head gasket (30) including a first water feed port (31) that communicates the first head water jacket (21) with the first block water jacket (11) and a second water feed port (32) that communicates the second head water jacket (22) with the first block water jacket (11).
9. The engine cooling water jacket structure according to claim 8, wherein the cylinder head gasket (30) includes a third water feed port (33) that communicates the outlet port of the second block water jacket (12) with the inlet port of the third block water jacket (23), a water return port (34) that communicates the outlet port of the return passage (21d) with the inlet port of the third block water jacket (13), and a fourth water feed port (35) that communicates the outlet port of the third block water jacket (13) with the inlet port of the third block water jacket (23).
10. An engine characterized by comprising the engine cooling water jacket structure according to any one of claims 1 to 9.
CN201910291322.9A 2019-04-11 2019-04-11 Engine cooling water jacket structure and engine Pending CN111810311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910291322.9A CN111810311A (en) 2019-04-11 2019-04-11 Engine cooling water jacket structure and engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910291322.9A CN111810311A (en) 2019-04-11 2019-04-11 Engine cooling water jacket structure and engine

Publications (1)

Publication Number Publication Date
CN111810311A true CN111810311A (en) 2020-10-23

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CN201910291322.9A Pending CN111810311A (en) 2019-04-11 2019-04-11 Engine cooling water jacket structure and engine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021085358A (en) * 2019-11-27 2021-06-03 スズキ株式会社 Cooling device for engine
JP2021085354A (en) * 2019-11-27 2021-06-03 スズキ株式会社 Cooling device for engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021085358A (en) * 2019-11-27 2021-06-03 スズキ株式会社 Cooling device for engine
JP2021085354A (en) * 2019-11-27 2021-06-03 スズキ株式会社 Cooling device for engine
JP7302454B2 (en) 2019-11-27 2023-07-04 スズキ株式会社 engine cooling system
JP7302453B2 (en) 2019-11-27 2023-07-04 スズキ株式会社 engine cooling system

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