JPS59182609U - engine brake device - Google Patents
engine brake deviceInfo
- Publication number
- JPS59182609U JPS59182609U JP7740883U JP7740883U JPS59182609U JP S59182609 U JPS59182609 U JP S59182609U JP 7740883 U JP7740883 U JP 7740883U JP 7740883 U JP7740883 U JP 7740883U JP S59182609 U JPS59182609 U JP S59182609U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- cylinder
- hydraulic chamber
- hydraulic
- valve
- 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
Links
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
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
第１図は従来のエンジンブレーキ装置の要部を断面で示
した概要図、第２図は本考案の一実施例を示した第１図
同様の概要図である。
１２・・・排気カム、１４・・・主カム、１６・・・副
カム、２０−・・油圧応動装置、２２・・・シリンダ、
２４・・・第１プランジヤ、２６・・・第２プランジヤ
、２８・・・第１油圧室、３０・・・第２油圧室、１２
・・・逆止弁、４６・・・第１の圧油通路、５２・・・
オイルポンプ、７２・・・第３油圧室、７４・・・第２
の圧油通路。FIG. 1 is a schematic diagram showing a main part of a conventional engine braking device in cross section, and FIG. 2 is a schematic diagram similar to FIG. 1 showing an embodiment of the present invention. 12... Exhaust cam, 14... Main cam, 16... Sub-cam, 20-... Hydraulic response device, 22... Cylinder,
24... First plunger, 26... Second plunger, 28... First hydraulic chamber, 30... Second hydraulic chamber, 12
...Check valve, 46...First pressure oil passage, 52...
Oil pump, 72...Third hydraulic chamber, 74...Second
pressure oil passage.
Claims (1)
死点付近で開く副リフトを具えた動弁カムと、同動弁カ
ムからそれによって駆動される吸気弁又は排気弁に到る
弁駆動系内に介装された油圧応動装置とを具え、上記油
圧応動装置が、シリ、ンダと、同シリンダ内に少くとも
上記副リフトに相当する相対摺動変位を許容されるよう
に嵌装され、かつ同シリンダと協働して第１油圧室を限
界する第１のプランジャと、上記第１プランジヤ内に摺
動自在に嵌装され両者間に第２の油圧室を限界する第２
プランジヤと、上記第１及び第２油圧室間に介装され、
上記第２プランジヤによって制御される逆止弁と、上記
シリンダと第２プランジヤとの間に形成された第３の油
圧室と、上記第２の油圧室に連通して同室内に常時圧油
を供給する第１の圧油通路と、上記第３の油圧室に連通
し、エンジンブレーキ運転時以外の運転状態において同
室内に圧油を供給する第２の圧油通路とを具備してなる
ことを特徴とするエンジンブレーキ装置。A valve drive cam equipped with an auxiliary lift that opens the intake valve or exhaust valve near compression top dead center during engine braking of a vehicle, and the valve drive system from the same valve cam to the intake or exhaust valve driven by the valve drive cam. and a hydraulic response device interposed in the cylinder, the hydraulic response device being fitted into the cylinder and the cylinder in such a manner that a relative sliding displacement corresponding to at least the sub-lift is allowed, and a first plunger that cooperates with the cylinder to limit a first hydraulic chamber; and a second plunger that is slidably fitted in the first plunger and that limits a second hydraulic chamber therebetween.
interposed between the plunger and the first and second hydraulic chambers,
A check valve controlled by the second plunger, a third hydraulic chamber formed between the cylinder and the second plunger, and a third hydraulic chamber that communicates with the second hydraulic chamber to constantly supply pressurized oil therein. A first pressure oil passage that supplies pressure oil, and a second pressure oil passage that communicates with the third hydraulic chamber and supplies pressure oil into the same chamber in operating states other than during engine braking operation. An engine braking device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7740883U JPS59182609U (en) | 1983-05-23 | 1983-05-23 | engine brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7740883U JPS59182609U (en) | 1983-05-23 | 1983-05-23 | engine brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59182609U true JPS59182609U (en) | 1984-12-05 |
Family
ID=30207437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7740883U Pending JPS59182609U (en) | 1983-05-23 | 1983-05-23 | engine brake device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59182609U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014006185A1 (en) * | 2012-07-05 | 2014-01-09 | Eaton Srl | Hydraulic valve lash adjuster |
| CN108049929A (en) * | 2012-04-19 | 2018-05-18 | 伊顿(意大利)有限公司 | For the valve actuating mechanism assembly of engine braking system |
-
1983
- 1983-05-23 JP JP7740883U patent/JPS59182609U/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049929A (en) * | 2012-04-19 | 2018-05-18 | 伊顿(意大利)有限公司 | For the valve actuating mechanism assembly of engine braking system |
| WO2014006185A1 (en) * | 2012-07-05 | 2014-01-09 | Eaton Srl | Hydraulic valve lash adjuster |
| CN104428501A (en) * | 2012-07-05 | 2015-03-18 | 伊顿(意大利)有限公司 | Hydraulic valve lash adjuster |
| CN104428501B (en) * | 2012-07-05 | 2017-09-08 | 伊顿(意大利)有限公司 | Hydraulic valve clearance adjuster |
| US10294828B2 (en) | 2012-07-05 | 2019-05-21 | Eaton Intelligent Power Limited | Hydraulic lash adjuster |
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