JPS59190911U

JPS59190911U - engine brake device

Info

Publication number: JPS59190911U
Application number: JP8498383U
Authority: JP
Inventors: 海老澤　賢一; 正宏前川; 和夫伊藤; 一仁田中
Original assignee: 三菱自動車工業株式会社
Priority date: 1983-06-03
Filing date: 1983-06-03
Publication date: 1984-12-18
Also published as: JPH0219526Y2

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図は本考案の一実施例としてのエンジンブレ
ーキ装置を取付けたディーゼルエンジンの概略側面図、
第２図は同上ディーゼルエンジンのバルブタイミング特
性図、第３図は同上エンジンブレーキ装置の概略断面図
、第４図は第３図のＸ−Ｘ線断面図、第５図は本考案の
他の実施例としてのエンジンブレーキ装置の概略要部切
欠断面図、第６図は第５図のＹ−Ｙ線拡大断面図、第７
図はＶ８、エンジンのバルブタイミング特性図をそれぞ
れ示した。１．４０・・・・・・エンジンブレーキ装置、２・・・
・・・ディーゼルエンジン、７，４１・・・・・・圧力
分配器、８・・・・・・駆動軸、１１・・・・・・ロー
タ、２０．　４４．　４５゜４６・・・・・・噴射管、
２２・・・・・・シリンダ、２３・・・・・・液圧シリ
ンダ、２６・・・・・・スレイブピストン、２７・・・
・・・第３弁、２９・・・・・・吸気弁、３０・・・・
・・排気弁１．３５・・・・・・シリンダブロック、３
６・・・・・・高圧ポシプ、４２・・・・・・カム軸、
４３・・・・・・二山カム。クフンクｈ皮　　　　　　　　ｒｔ、ｖ　　　　　　　
Ｌ′−−１−ル［ゴ５８シリンダＬシＩ　　　　　　　Ｔ　　　　　　　Ｌ
蕩°　　　鴻’　　　　ｎｏ’　　　　ｗイ″七「１Ｚ罫シリング〉　　　　　＋ＴＺ　　　　　−Ｌに□□
□□□□□［−− ３番シしグ〉トー＝−−トーＪＩ　　　　ＬｉＪ７１シ
シソシダ”ｒ−一」−□ゎ７こ二↓−ｉδ春ンソング〉〃°　　４°　　Ｊ″　　祷“　　ず濯゛　　　〜゛　　ｌγ　　〃゛〃。 −１Ｔ４１　　　１Ｅ４１　　−Ｉ＋　　　μらＴＢｊ　　ｌ, FIG. 1 is a schematic side view of a diesel engine equipped with an engine braking device as an embodiment of the present invention.
Fig. 2 is a valve timing characteristic diagram of the diesel engine as above, Fig. 3 is a schematic sectional view of the engine braking device as above, Fig. 4 is a sectional view taken along the line X-X of Fig. FIG. 6 is an enlarged sectional view taken along the line Y-Y in FIG. 5, and FIG.
The figures show the valve timing characteristics of a V8 engine. 1.40...Engine brake device, 2...
... Diesel engine, 7,41 ... Pressure distributor, 8 ... Drive shaft, 11 ... Rotor, 20. 44. 45゜46・・・Injection pipe,
22...Cylinder, 23...Hydraulic cylinder, 26...Slave piston, 27...
...Third valve, 29...Intake valve, 30...
...Exhaust valve 1.35...Cylinder block, 3
6...High pressure pump, 42...Camshaft,
43...Two mountains cam. Kufunku h skin rt, v
L'--1-ru [GO58 cylinder L cylinder I T L
蕩° 鴻'no'wi"7"1 Z ruled shilling> +TZ -L□□
□□□□□ [-- 3rd sign〉To=--To JI LiJ71 Shishisoshida "r-1"-□ゎ7Ko2↓-iδ Spring song> 〃° 4° J"Prayer" Zurin 〜゛ lγ 〃゛〃. -1T41 1E41 -I + μ et al. TBj l

Claims

[Scope of utility model registration request]

1 in each cylinder of a multi-cylinder 4-stroke internal combustion engine,
In an engine braking device, a third valve is installed separately from the exhaust valve, and when each cylinder reaches near compression top dead center, the third valve is opened for a predetermined time by a third valve driving means to absorb compression work, The third valve driving means is a hydraulic pump, the third valve operating piston is attached to the third valve of each cylinder, and the pressure oil pressurized by the hydraulic pump is
and a pressure distributor equipped with a drive shaft that rotates so as to distribute and supply the valve operation piston, and the plurality of cylinders are divided into pairs of cylinders that are driven with a stroke difference of 360 degrees from each other, and the In order to open the three valves at the same time, the oil passages that receive common pressure oil are communicated with each of the pair of third valve operating pistons, and the drive shaft of the pressure distributor is rotated at the same rotational speed as the internal combustion engine. Alternatively, an engine braking device characterized in that each cam of the drive shaft is formed into a double cam.