JPS6129996U

JPS6129996U - Outboard motor water cooling system

Info

Publication number: JPS6129996U
Application number: JP11415784U
Authority: JP
Inventors: 吉美渡辺
Original assignee: 本田技研工業株式会社
Priority date: 1984-07-26
Filing date: 1984-07-26
Publication date: 1986-02-22
Also published as: JPH0349996Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案の一実施例を示すもので、第１図は船外機
の一部縦断側面図、第２図はエンジン部の拡大縦断側面
図、第３図は第２図の■一■線断面図、第４図は第３図
のＩＶ−ＴＶ線断面図、第５図は第２図の■一Ｖ線断面
図、第６図はエクステンションケースの平面図、第７図
は仕切板の平面図である。Ｅ・・・・・・エンジン、１・・・・・・クランク軸、
２−−−−−−’ＫＡ動軸、４・・・・・・プロペラ軸
、７・・・・・・エクステンションケース、７ａ・・・
・・・中空部、２０ｂ・・・山オイルバンとしての下部
クランクケース、２２・・・・・・シリンダブロック、
２３・・・・・・シリンダヘッド、３２・・・・・・水
ジャケット、３２ａ・・・・・・入口通路、３２ｂ・・
・・・・出口通路、３３・・・・・・排気路、３４ａ・
・・・・・給水路、３４，ｂ・・・・・・排水路、３５
・・・・・・排気路ブロック、３８・・・・・・排気路
、３９・・・・・・バイパス、４０・・・・・・送水管
、，４１・・・・・・仕切板、４３・・・・・・排水室
、４４・・・・・゜検水孔、５０・・・・・・吸水口、
５１・・・・・・排出口、５２・・・・・・水ポンプ。The drawings show one embodiment of the present invention; Fig. 1 is a partial longitudinal side view of an outboard motor, Fig. 2 is an enlarged longitudinal sectional side view of the engine section, and Fig. 3 is a cross-sectional view of the outboard motor. Figure 4 is a cross-sectional view taken along line IV-TV in Figure 3, Figure 5 is a cross-sectional view taken along line 1-V in Figure 2, Figure 6 is a plan view of the extension case, and Figure 7 is a partition plate. FIG. E...Engine, 1...Crankshaft,
2-----'KA moving shaft, 4...Propeller shaft, 7...Extension case, 7a...
...Hollow part, 20b...Lower crankcase as mountain oil van, 22...Cylinder block,
23...Cylinder head, 32...Water jacket, 32a...Inlet passage, 32b...
...Exit passage, 33...Exhaust passage, 34a.
...... Water supply channel, 34,b... Drainage channel, 35
...Exhaust path block, 38...Exhaust path, 39...Bypass, 40...Water pipe, 41...Partition plate, 43...Drainage chamber, 44...゜water inspection hole, 50...Water intake port,
51...Discharge port, 52...Water pump.

Claims

[Scope of utility model registration request]

A drive shaft that is connected to the engine crankshaft and drives the propeller shaft is housed in the hollow part of the extension case that is attached to the bottom surface of the engine's oil pan. An exhaust path block is inserted that opens the exhaust port of the head into the hollow part of the extension case, and a water pipe running longitudinally through the hollow part of the extension case is connected to the inlet passage of the engine's water jacket, and the outlet passage is connected to the extension case. In a water cooling system for an outboard motor that is open to a hollow part of a cylinder case, an inlet passage and an outlet passage of the water jacket are formed in a cylinder head adjacent to an exhaust boat, and a water supply channel that communicates the water pipe with the inlet passage is provided. A water cooling system for an outboard motor, characterized in that the exhaust passage block has a drainage passage that opens the outlet passage into a hollow passage of an extension case.