CN113513425A - Concentrated exhaust cooling structure of outboard engine power assembly - Google Patents

Concentrated exhaust cooling structure of outboard engine power assembly Download PDF

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Publication number
CN113513425A
CN113513425A CN202110478930.8A CN202110478930A CN113513425A CN 113513425 A CN113513425 A CN 113513425A CN 202110478930 A CN202110478930 A CN 202110478930A CN 113513425 A CN113513425 A CN 113513425A
Authority
CN
China
Prior art keywords
exhaust
exhaust pipe
seat
concentrated
cooling water
Prior art date
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
CN202110478930.8A
Other languages
Chinese (zh)
Inventor
夏坚
徐晓虎
任韦青
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Parsun Power Machine Co Ltd
Original Assignee
Suzhou Parsun Power Machine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Parsun Power Machine Co Ltd filed Critical Suzhou Parsun Power Machine Co Ltd
Priority to CN202110478930.8A priority Critical patent/CN113513425A/en
Publication of CN113513425A publication Critical patent/CN113513425A/en
Pending legal-status Critical Current

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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 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
    • 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
    • F01P3/12—Arrangements for cooling other engine or machine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • F02F2001/4278—Exhaust collectors

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention discloses a concentrated exhaust cooling structure of an outboard engine power assembly, which comprises an engine box body, a cylinder head, a rectifier component and an exhaust pipe component, wherein the engine box body is provided with a plurality of air inlet holes; the engine box body and the cylinder head are both provided with water cooling structures, and the cylinder head is provided with a centralized exhaust bin, a rectifier mounting seat and a plurality of exhaust valve seats; a cooling water channel and an exhaust cavity are arranged in the exhaust bin, and the rectifier assembly is arranged on the rectifier mounting seat; an exhaust passage is arranged at each exhaust valve seat, and a plurality of exhaust passages are gathered in the exhaust cavity; the exhaust channel of the multi-cylinder engine is concentrated in the exhaust bin, and the exhaust is unified through the exhaust pipe assembly, so that the exhaust efficiency is improved; the water cooling structure of the engine is introduced into the structure of the concentrated exhaust bin, so that the exhaust channel can be effectively cooled, and meanwhile, the rectifier can also be cooled; the exhaust pipe assembly after the optimized design can improve the exhaust effect and ensure the stable operation of the engine.

Description

Concentrated exhaust cooling structure of outboard engine power assembly
Technical Field
The invention relates to a centralized exhaust cooling structure of an outboard engine power assembly, and belongs to the technical field of outboard engines.
Background
An exhaust structure needs to be designed on a power assembly of the outboard engine to exhaust waste gas in a cylinder, most of the existing modes are that an independent exhaust pipeline is arranged at each exhaust valve of a multi-cylinder engine, and the exhaust mode has low efficiency and is not beneficial to exhaust and heat dissipation; and the design of exhaust pipe is reasonable inadequately, influences the exhaust effect, and then can influence the job stabilization nature of outboard engine.
Disclosure of Invention
In view of the above technical problems, the present invention aims to: a concentrated exhaust cooling structure for outboard engine power assemblies is provided.
The technical solution of the invention is realized as follows: a concentrated exhaust cooling structure of an outboard engine power assembly comprises an engine box body, a cylinder head, a rectifier component and an exhaust pipe component; the cylinder head is arranged on the engine box body, the engine box body and the cylinder head are both provided with water cooling structures, and the cylinder head is provided with a centralized exhaust bin, a rectifier mounting seat and a plurality of exhaust valve seats; a cooling water path and an exhaust cavity are arranged in the exhaust bin, the cooling water path passes through the rectifier mounting seat, and the rectifier assembly is mounted on the rectifier mounting seat; an exhaust passage is arranged at each exhaust valve seat, and a plurality of exhaust passages are gathered in the exhaust cavity; the concentrated exhaust bin is provided with an exhaust pipe connecting seat, the engine box body is provided with an exhaust connecting structure, and two ends of the exhaust pipe assembly are connected to the exhaust pipe connecting seat and the exhaust connecting structure of the engine box body respectively.
Preferably, the rectifier mounting seat is arranged on the exhaust bin, and the rectifier mounting seat forms a cooling water tank communicated with the cooling water channel.
Preferably, the exhaust pipe connecting seat is positioned in the middle of the concentrated exhaust bin, and a cooling water channel connecting port is arranged on the exhaust pipe connecting seat.
Preferably, the exhaust pipe assembly comprises an upper exhaust pipe and a lower exhaust pipe, cooling water paths are arranged in the upper exhaust pipe and the lower exhaust pipe, an upper flange seat is arranged at the upper end of the upper exhaust pipe, the upper flange seat is fixedly connected with an exhaust pipe connecting seat, a lower flange seat is arranged at the lower end of the lower exhaust pipe, and the lower flange seat is arranged on an exhaust connecting structure of the engine box body; the lower end of the upper exhaust pipe is provided with a first inner connecting part and a first outer connecting part, the upper end of the lower exhaust pipe is provided with a second inner connecting part and a second outer connecting part, the first inner connecting part is matched with the second inner connecting part, and the first outer connecting part is matched with the second outer connecting part, so that the cooling water paths in the upper exhaust pipe and the lower exhaust pipe are communicated.
Preferably, the upper flange seat is provided with a water return hole, and the water return hole is communicated with a cooling water path in the upper exhaust pipe.
Preferably, the connecting end surfaces of the upper flange seat and the lower flange seat are both provided with cooling water channel connecting ports.
Preferably, the connection part of the upper exhaust pipe and the lower exhaust pipe is provided with a pull rod connection block, the pull rod connection block is used for installing a pull rod, and the pull rod connects and fixes the upper exhaust pipe and the lower exhaust pipe through the pull rod connection block.
Preferably, a sealing ring is arranged on a matching surface of the first inner connecting part and the second inner connecting part, and a sealing ring is arranged on a matching surface of the first outer connecting part and the second outer connecting part.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the concentrated exhaust cooling structure of the outboard engine power assembly, the structure of the concentrated exhaust bin is designed on the cylinder head, so that exhaust channels of a multi-cylinder engine can be concentrated in the exhaust bin, and exhaust is unified through the exhaust pipe assembly, so that the exhaust efficiency is improved; the water cooling structure of the engine is introduced into the structure of the concentrated exhaust bin, so that the exhaust channel can be effectively cooled, and meanwhile, the rectifier can also be cooled; the exhaust pipe assembly after the optimized design can improve the exhaust effect and ensure the stable operation of the engine.
Drawings
The technical scheme of the invention is further explained by combining the accompanying drawings as follows:
FIG. 1 is a perspective view of a concentrated exhaust cooling arrangement for an outboard engine power assembly in accordance with the present invention;
FIG. 2 is a schematic perspective view of a cylinder head according to the present invention;
FIG. 3 is a schematic perspective view of the other side of the cylinder head according to the present invention;
FIG. 4 is a schematic cross-sectional view of a cylinder head according to the present invention;
FIG. 5 is a schematic perspective view of an exhaust pipe assembly according to the present invention;
fig. 6 is a schematic cross-sectional view of an exhaust pipe assembly according to the present invention.
Detailed Description
The invention is described below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the concentrated exhaust cooling structure of an outboard engine power assembly according to the present invention includes an engine case 1, a cylinder head 2, a rectifier assembly 3, and an exhaust pipe assembly; the cylinder head 2 is arranged on the engine box body 1, the engine box body 1 and the cylinder head 2 are both provided with water cooling structures, and the cylinder head 2 is provided with a centralized exhaust bin 6, a rectifier mounting seat 7 and a plurality of exhaust valve seats 8; in the embodiment, a four-cylinder structure is adopted, and 8 exhaust valves are used in total.
The exhaust bin 6 is internally provided with a cooling water channel 10 and an exhaust cavity 11, the rectifier mounting seat 7 is arranged on the exhaust bin 6, the rectifier mounting seat 7 forms a cooling water channel communicated with the cooling water channel 10, the rectifier assembly 3 is arranged on the rectifier mounting seat 7, the original air cooling mode of the rectifier assembly 3 is changed into water cooling, the engine space structure is ingeniously utilized, and the heat dissipation efficiency of the rectifier assembly 3 is improved.
Each exhaust valve seat 8 is provided with an exhaust passage 12, the exhaust passages 12 are gathered in an exhaust cavity 11, exhaust is concentrated through the exhaust cavity 11, a plurality of process holes are formed in a concentrated exhaust bin 6 and are respectively communicated with a water path or a gas path in the concentrated exhaust bin 6, the process holes are generally plugged by process plugs, and when needed, the process plugs can be taken down and corresponding sensors are mounted to detect the cylinder body.
The exhaust pipe connecting seat 9 is arranged in the middle of the concentrated exhaust bin 6, the exhaust connecting structure is arranged on the engine box body 1, the two ends of the exhaust pipe assembly are respectively connected to the exhaust connecting structure of the exhaust pipe connecting seat 9 and the exhaust connecting structure of the engine box body 1, and the exhaust pipe connecting seat 9 is provided with a cooling water path connecting port 13 for communicating a cooling water path in the exhaust pipe assembly.
As shown in fig. 5-6, the exhaust pipe assembly includes an upper exhaust pipe 4 and a lower exhaust pipe 5, wherein the upper exhaust pipe 4 and the lower exhaust pipe 5 are both provided with a cooling water channel 10, the upper end of the upper exhaust pipe 4 is provided with an upper flange seat 21, the upper flange seat 21 is provided with a water return hole 31, the water return hole 31 is communicated with the cooling water channel 10 in the upper exhaust pipe 4, and the water return hole 31 can be connected with an external cooling water observation port.
The upper flange seat 21 is fixedly connected with the exhaust pipe connecting seat 9, the lower end of the lower exhaust pipe 5 is provided with a lower flange seat 26, and the lower flange seat 26 is arranged on an exhaust connecting structure of the engine box body 1; and cooling water channel connectors 13 are arranged on the connecting end surfaces of the upper flange seat 21 and the lower flange seat 26, so that the cooling water channels 10 in the upper exhaust pipe 4 and the lower exhaust pipe 5 are communicated with the water cooling structures in the engine box body 1 and the cylinder head 2, and a complete cooling water circulation system is formed.
The lower end of the upper exhaust pipe 4 is provided with a first inner connecting part 22 and a first outer connecting part 23, the upper end of the lower exhaust pipe 5 is provided with a second inner connecting part 24 and a second outer connecting part 25, the first inner connecting part 22 is matched with the second inner connecting part 24, and the first outer connecting part 23 is matched with the second outer connecting part 25, so that the cooling water channels 10 in the upper exhaust pipe 4 and the lower exhaust pipe 5 are communicated.
The matching surfaces of the first inner connecting portion 22 and the second inner connecting portion 24 are provided with sealing rings to ensure that the water paths and the air paths are mutually sealed and separated, and the matching surfaces of the first outer connecting portion 23 and the second outer connecting portion 25 are provided with sealing rings to ensure that cooling water does not leak.
The connecting part of the upper exhaust pipe 4 and the lower exhaust pipe 5 is provided with a pull rod connecting block 32, the pull rod connecting block 32 is used for installing a pull rod, and the pull rod connects and fixes the upper exhaust pipe 4 and the lower exhaust pipe 5 through the pull rod connecting block 32.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.

Claims (8)

1. The utility model provides an outboard engine power assembly's concentrated exhaust cooling structure which characterized in that: comprises an engine box body (1), a cylinder head (2), a rectifier component (3) and an exhaust pipe component; the cylinder head (2) is arranged on the engine box body (1), the engine box body (1) and the cylinder head (2) are both provided with water cooling structures, and the cylinder head (2) is provided with a centralized exhaust bin (6), a rectifier mounting seat (7) and a plurality of exhaust valve seats (8); a cooling water path (10) and an exhaust cavity (11) are arranged in the exhaust bin (6), the cooling water path (10) passes through the rectifier mounting seat (7), and the rectifier assembly (3) is mounted on the rectifier mounting seat (7); an exhaust passage (12) is arranged at each exhaust valve seat (8), and the exhaust passages (12) are converged into an exhaust cavity (11); the concentrated exhaust bin (6) is provided with an exhaust pipe connecting seat (9), the engine box body (1) is provided with an exhaust connecting structure, and two ends of the exhaust pipe assembly are respectively connected to the exhaust connecting structure of the exhaust pipe connecting seat (9) and the exhaust connecting structure of the engine box body (1).
2. The concentrated exhaust cooling structure for outboard engine power units according to claim 1, wherein: the rectifier mounting seat (7) is arranged on the exhaust bin (6), and the rectifier mounting seat (7) forms a cooling water tank communicated with the cooling water channel (10).
3. The concentrated exhaust cooling structure for outboard engine power units according to claim 1, wherein: the exhaust pipe connecting seat (9) is located in the middle of the concentrated exhaust bin (6), and a cooling water channel connecting port (13) is arranged on the exhaust pipe connecting seat (9).
4. The concentrated exhaust cooling structure for outboard engine power units according to claim 1, wherein: the exhaust pipe assembly comprises an upper exhaust pipe (4) and a lower exhaust pipe (5), cooling water channels (10) are arranged in the upper exhaust pipe (4) and the lower exhaust pipe (5), an upper flange seat (21) is arranged at the upper end of the upper exhaust pipe (4), the upper flange seat (21) is fixedly connected with an exhaust pipe connecting seat (9), a lower flange seat (26) is arranged at the lower end of the lower exhaust pipe (5), and the lower flange seat (26) is installed on an exhaust connecting structure of the engine box body (1); the lower extreme of last blast pipe (4) has first inner connecting portion (22) and first outer connecting portion (23), and the upper end of lower blast pipe (5) has second inner connecting portion (24) and second outer connecting portion (25), and first inner connecting portion (22) and second inner connecting portion (24) cooperation, first outer connecting portion (23) and second outer connecting portion (25) cooperation make upper blast pipe (4) and cooling water route (10) in lower blast pipe (5) be linked together.
5. The concentrated exhaust cooling structure for outboard engine power units according to claim 4, wherein: and the upper flange seat (21) is provided with a water return hole (31), and the water return hole (31) is communicated with a cooling water channel (10) in the upper exhaust pipe (4).
6. The concentrated exhaust cooling structure for outboard engine power units according to claim 4, wherein: and cooling water channel connecting ports (13) are arranged on the connecting end surfaces of the upper flange seat (21) and the lower flange seat (26).
7. The concentrated exhaust cooling structure for outboard engine power units according to claim 4, wherein: the connecting part of the upper exhaust pipe (4) and the lower exhaust pipe (5) is provided with a pull rod connecting block (32), the pull rod connecting block (32) is used for installing a pull rod, and the pull rod connects and fixes the upper exhaust pipe (4) and the lower exhaust pipe (5) through the pull rod connecting block (32).
8. The concentrated exhaust cooling structure for outboard engine power units according to claim 4, wherein: and a sealing ring is arranged on the matching surface of the first inner connecting part (22) and the second inner connecting part (24), and a sealing ring is arranged on the matching surface of the first outer connecting part (23) and the second outer connecting part (25).
CN202110478930.8A 2021-04-30 2021-04-30 Concentrated exhaust cooling structure of outboard engine power assembly Pending CN113513425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110478930.8A CN113513425A (en) 2021-04-30 2021-04-30 Concentrated exhaust cooling structure of outboard engine power assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110478930.8A CN113513425A (en) 2021-04-30 2021-04-30 Concentrated exhaust cooling structure of outboard engine power assembly

Publications (1)

Publication Number Publication Date
CN113513425A true CN113513425A (en) 2021-10-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110478930.8A Pending CN113513425A (en) 2021-04-30 2021-04-30 Concentrated exhaust cooling structure of outboard engine power assembly

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CN (1) CN113513425A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0439194A (en) * 1990-06-05 1992-02-10 Suzuki Motor Corp Rectifier cooling device for outboard engine
JPH0941967A (en) * 1995-08-03 1997-02-10 Sanshin Ind Co Ltd Cooling structure of four-cycle outboard motor
US5904605A (en) * 1997-01-31 1999-05-18 Suzuki Kabushiki Kaisha Cooling apparatus for outboard motor
CN1497142A (en) * 2002-10-11 2004-05-19 本田技研工业株式会社 Outboard motor equiped with water-cooled engine
CN204511689U (en) * 2014-03-19 2015-07-29 三菱自动车工业株式会社 A kind of engine cylinder cover
CN208252193U (en) * 2018-03-16 2018-12-18 重庆凯特动力科技有限公司 A kind of exhaust manifold resistant to high temperature

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0439194A (en) * 1990-06-05 1992-02-10 Suzuki Motor Corp Rectifier cooling device for outboard engine
JPH0941967A (en) * 1995-08-03 1997-02-10 Sanshin Ind Co Ltd Cooling structure of four-cycle outboard motor
US5904605A (en) * 1997-01-31 1999-05-18 Suzuki Kabushiki Kaisha Cooling apparatus for outboard motor
CN1497142A (en) * 2002-10-11 2004-05-19 本田技研工业株式会社 Outboard motor equiped with water-cooled engine
CN204511689U (en) * 2014-03-19 2015-07-29 三菱自动车工业株式会社 A kind of engine cylinder cover
CN208252193U (en) * 2018-03-16 2018-12-18 重庆凯特动力科技有限公司 A kind of exhaust manifold resistant to high temperature

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Application publication date: 20211019

RJ01 Rejection of invention patent application after publication