JPS6032505U

JPS6032505U - engine brake device

Info

Publication number: JPS6032505U
Application number: JP12499383U
Authority: JP
Inventors: 宏佐藤; 宏岡村
Original assignee: 三菱自動車工業株式会社
Priority date: 1983-08-11
Filing date: 1983-08-11
Publication date: 1985-03-05
Also published as: JPH0141846Y2

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図は本考案の第１実施例を示す要部断面図、第２図
は第１図の■−■線に沿う断面図、第３図は第２図にお
ける鎖線円で囲んだ部分■の拡大断面図、第４図は第１
図の矢印ＩＶ−ＩＶに沿って視た端面図、第５図は第１
実施例における吸収馬力Ｐｓ及び騒音レベルＮを示した
線図、第６図は同じく第１実施例におけるカム面圧を示
す線図、第７図は本考案の第２実施例を示す第１図同様
の断面図、第８図は第７図の■−■線に沿う断面図、第
９図は第８図に鎖線で囲んだ部分■の拡大　′断面図、
第１０図は同じく第８図に鎖線で囲んだ　　゛部分Ｘの
拡大断面図、第１１図は第１０図の変珍゛例を示す断面
図である。− １０・・・燃焼室、１２・・・シリンダブロック、１４
・・・シリンダヘッド、１６・・・ピストン、２２・・
・吸気弁、２４・・・排気弁、４６・・・圧力放出ポー
ト、４８・・・第３弁、６０・・・第３弁カム。−↑　
　　　　第６図第７図第９図１υFig. 1 is a cross-sectional view of a main part showing the first embodiment of the present invention, Fig. 2 is a cross-sectional view taken along line ■-■ in Fig. 1, and Fig. 3 is a portion surrounded by a chain line circle in Fig. 2. 4 is an enlarged cross-sectional view of the 1st
An end view taken along the arrow IV-IV in the figure, FIG.
FIG. 6 is a diagram showing the absorption horsepower Ps and noise level N in the embodiment, FIG. 6 is a diagram showing the cam surface pressure in the first embodiment, and FIG. 7 is a diagram showing the second embodiment of the present invention. Similar sectional views, Fig. 8 is a sectional view taken along the line ■-■ in Fig. 7, Fig. 9 is an enlarged cross-sectional view of the part ``■'' surrounded by a chain line in Fig. 8;
FIG. 10 is an enlarged sectional view of the portion X enclosed by the chain line in FIG. 8, and FIG. 11 is a sectional view showing a variation of FIG. 10. - 10... Combustion chamber, 12... Cylinder block, 14
...Cylinder head, 16...Piston, 22...
- Intake valve, 24...Exhaust valve, 46...Pressure release port, 48...Third valve, 60...Third valve cam. −↑
Figure 6 Figure 7 Figure 9 1υ

Claims

[Scope of utility model registration request]

A third valve is installed in the cylinder head of a reciprocating internal combustion engine in addition to the normal intake and exhaust valves, and the opposite valve is opened near the top dead center of the piston's compression stroke to direct compressed air to the outside of the cylinder. In the device that causes the discharged engine brake effect, the ratio of the outer diameter d of the third valve to the inner diameter of the syringe is set to 0.05≦d/D≦0.3.
An engine braking device characterized in that it is set to 0.