JPS6081224U

JPS6081224U - Outboard motor

Info

Publication number: JPS6081224U
Application number: JP17389883U
Authority: JP
Inventors: 寺田　嘉之; 直人吉村; 圭介大穀
Original assignee: スズキ株式会社
Priority date: 1983-11-10
Filing date: 1983-11-10
Publication date: 1985-06-05

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 the drawing]

第１図は従来例の船外機を示した一部破断側面図、第２
図は本考案に係る船外機の要部縦断面図、第３図はその
Ａ−Ａ線断面図、第４図は本考案に係る船外機における
排気通路の一部改良した部分を示した要部縦断面図、第
５図はそのＢ−Ｂ線断面拡大図である。１・・・エンジン、１ａ・・・シリンタフロック、１ｂ
・・・凹部、２・・・エンジンホルダ、２ａ・・・Ｌ２
ｂ。２ｃ・・・凹部、３・・・排気通路、４・・・ニゲシー
ストチューブ、５・・・下端開口、６・・・ドライブシ
ャフトハウジング、７・・・膨張室、８・・・ギヤケー
ス、９・・・プロペラボス、１０．１１・・・排気孔、
１２・・・ガスケット、１３・・・排気通路、１４．ａ
；’　１４　ｂ・・・共鳴室、１５．１６・・・スリッ
ト、１７．１８・・・排気通路、１９・・・孔、２０・
・・開口、２１・・・排気迷路、２２・・・壁、２３・
・・プレート、２４・・・出口。Figure 1 is a partially cutaway side view of a conventional outboard motor;
The figure is a longitudinal cross-sectional view of a main part of the outboard motor according to the present invention, FIG. 3 is a cross-sectional view taken along the line A-A, and FIG. 4 is a partially improved part of the exhaust passage in the outboard motor according to the present invention. FIG. 5 is an enlarged cross-sectional view taken along line B-B. 1...Engine, 1a...Cylinder block, 1b
... recess, 2... engine holder, 2a... L2
b. 2c... recess, 3... exhaust passage, 4... lower end tube, 5... lower end opening, 6... drive shaft housing, 7... expansion chamber, 8... gear case, 9 ...Propeller boss, 10.11...Exhaust hole,
12... Gasket, 13... Exhaust passage, 14. a
;' 14 b... Resonance chamber, 15.16... Slit, 17.18... Exhaust passage, 19... Hole, 20.
...Opening, 21...Exhaust maze, 22...Wall, 23.
...Plate, 24...Exit.

Claims

[Scope of utility model registration request]

An outboard motor that discharges engine exhaust gas into the water through the opening at the lower end of the sheath tube during high-speed operation, and discharges engine exhaust gas into the atmosphere through a hole in the upper side wall of the sheath tube during low-speed operation. forming a plurality of downwardly opening recesses or holes in the engine holder, and closing the openings of the recesses or holes by assembling the cylinder tab 9, the engine holder, the gasket, the Nigeshiest tube, and the drive shaft housing; An outboard motor characterized in that an exhaust passage and a resonance chamber are formed in the engine holder.