JPH0332141U - - Google Patents
Info
- Publication number
- JPH0332141U JPH0332141U JP9283489U JP9283489U JPH0332141U JP H0332141 U JPH0332141 U JP H0332141U JP 9283489 U JP9283489 U JP 9283489U JP 9283489 U JP9283489 U JP 9283489U JP H0332141 U JPH0332141 U JP H0332141U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pressure
- butterfly valve
- actuator
- exhaust
- 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
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
第１図は本考案の第１実施例を示す概略構成図
、第２図は本考案の第２実施例を示す要部構成図
、第３図は排気ブレーキ弁作動時の排気系内の圧
力変動状態を示した線図である。
１０…弁ケーシング、１２…バタフライ弁、１
４…弁軸、２２…調圧スプリング、３０…アクチ
ユエータ。
Figure 1 is a schematic configuration diagram showing the first embodiment of the present invention, Figure 2 is a diagram showing the main part configuration of the second embodiment of the invention, and Figure 3 is the pressure in the exhaust system when the exhaust brake valve is activated. It is a diagram showing a fluctuating state. 10...Valve casing, 12...Butterfly valve, 1
4... Valve shaft, 22... Pressure regulating spring, 30... Actuator.
Claims (1)
積を制御するバタフライ弁、同バタフライ弁に全
閉時に作用する排気ガスの圧力中心から偏椅して
配設された弁軸、同弁軸に連結されて上記バタフ
ライ弁の開度を制御するアクチユエータ、及び同
アクチユエータと上記弁軸との間の伝動系内に介
装された調圧用スプリングを具え、同調圧スプリ
ングは、上記バタフライ弁の全閉時における同弁
の上流側と下流側との圧力差が設定値を超えたと
き、当該圧力差によつて上記弁軸の周りに生起さ
れる開弁モーメントにより克服されて同弁の小角
度の開動を許容するように構成されていることを
特徴とする排気ブレーキ装置。 A butterfly valve that is installed in the engine exhaust system to control the exhaust passage area, a valve shaft that is deviated from the center of pressure of exhaust gas that acts on the butterfly valve when it is fully closed, and An actuator is connected to control the opening degree of the butterfly valve, and a pressure regulating spring is interposed in a transmission system between the actuator and the valve shaft, and the regulating pressure spring is configured to fully close the butterfly valve. When the pressure difference between the upstream and downstream sides of the valve exceeds the set value, the opening moment generated around the valve stem due to the pressure difference overcomes the opening moment of the valve, and the small angle of the valve is An exhaust brake device characterized by being configured to allow opening movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9283489U JPH0332141U (en) | 1989-08-07 | 1989-08-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9283489U JPH0332141U (en) | 1989-08-07 | 1989-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0332141U true JPH0332141U (en) | 1991-03-28 |
Family
ID=31642243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9283489U Pending JPH0332141U (en) | 1989-08-07 | 1989-08-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0332141U (en) |
-
1989
- 1989-08-07 JP JP9283489U patent/JPH0332141U/ja active Pending
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