JPS60141436U - Diesel engine exhaust throttle valve control device - Google Patents
Diesel engine exhaust throttle valve control deviceInfo
- Publication number
- JPS60141436U JPS60141436U JP2741384U JP2741384U JPS60141436U JP S60141436 U JPS60141436 U JP S60141436U JP 2741384 U JP2741384 U JP 2741384U JP 2741384 U JP2741384 U JP 2741384U JP S60141436 U JPS60141436 U JP S60141436U
- Authority
- JP
- Japan
- Prior art keywords
- throttle valve
- exhaust throttle
- pressure difference
- exhaust
- driving means
- 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.)
- Granted
Links
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (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図は本考案に係るディーゼルエンジンの排気絞弁制
御装置の構成図であって、排気ブレーキ状態を示す図、
第２図は本考案に係るディーゼルエンジンの排気絞弁制
御装置の構成図であって、走行暖房状態を示す図、第３
図ないし第５図は本考案に係る三方電磁弁の制御回路を
示す図であって、第３図は排気ブレーキ状態においての
三方電磁弁への通電状態を示す図、第４図は停止暖機状
態においての三方電磁弁へのい通電状態を示す図、第５
図は走行暖房状態においての三方電磁弁への通電状態を
示す図、である。
１・・・・・・ディーゼルエンジン本体、７・・・・・
・排気通路、１１・・・−゛・・排気絞弁、１６・・・
・・・バキュームポン−プ、２７・・・・・・排気絞弁
駆動製手段、２８，２９・・・・・・圧力差生成通路、
３０・・・・・・第１の生成圧力調節手段、３１・・・
・・・第２の生成圧力差調節手段、３６・・・・・・三
方電磁弁、３９・・・・・・三方電磁弁、６６・・・・
・・排気ブレーキスイッチ、６８・・・・・・休止暖機
スイッチ。
６３ｉ
−↓
瓜〕′蕉廿−−５ト□１５寸１
Ｉ６３
キー６２FIG. 1 is a configuration diagram of an exhaust throttle valve control device for a diesel engine according to the present invention, and is a diagram showing an exhaust brake state;
Fig. 2 is a configuration diagram of the exhaust throttle valve control device for a diesel engine according to the present invention, and Fig. 2 is a diagram showing a running heating state;
5 to 5 are diagrams showing the control circuit of the three-way solenoid valve according to the present invention, FIG. 3 is a diagram showing the energization state to the three-way solenoid valve in the exhaust brake state, and FIG. Figure 5 shows the state of energization to the three-way solenoid valve in the
The figure is a diagram showing the state of energization of the three-way solenoid valve in the running heating state. 1... Diesel engine body, 7...
・Exhaust passage, 11...-゛...Exhaust throttle valve, 16...
... Vacuum pump, 27 ... Exhaust throttle valve driving means, 28, 29 ... Pressure difference generation passage,
30...first generation pressure regulating means, 31...
...Second generated pressure difference adjusting means, 36...Three-way solenoid valve, 39...Three-way solenoid valve, 66...
...Exhaust brake switch, 68... Pause warm-up switch. 63i -↓ Melon〕'蕉廿--5 ト□15 sun 1 I63 Key 62
Claims (1)
を圧力差に基づいて駆動する排気絞弁駆動手段と、 エンジン運転状態が停止暖機状態と排気ブレーキ状態と
のいずれか一方の運転状態となるように前記排気絞弁が
略全閉状態となるように前記排気絞弁駆動手段に圧力差
を生成する排気絞弁略全閉用圧力差生成手段と、 エンジン運転状態が走行暖房状態にあるときに、前記排
気絞弁が部分閉状態となるように前記排気絞弁駆動手段
に圧力差を生成する排気絞弁部分閉用圧力差生成手段と
、 前記排気絞弁が部分閉状態にあるときに前記排気絞弁よ
りも上流側の排気通路の排気圧力が所定値に維持される
ように、前記排気絞弁駆動手段に生成される圧力差を前
記排気圧力に基づいて調節する第１の生成圧力差調節手
段と、 前記排気絞弁を略全閉状態から部分閉状態に切換える際
の過渡期に、前記排気絞弁駆動手段に生成される圧力差
が前記排気絞弁の略全閉状態に対応する圧力差から前記
排気絞弁の部分閉状態に対応する圧力差に急変化するよ
うに前記排気絞弁駆動手段に生成されている圧力差を調
節する第２の生成圧力差調節手段と、 を備えていることを特徴とするディーゼルエンジンの排
気絞弁制御装置。[Scope of Claim for Utility Model Registration] An exhaust throttle valve provided in the middle of an exhaust passage, an exhaust throttle valve driving means for driving the exhaust throttle valve based on a pressure difference, and an exhaust throttle valve provided in the middle of an exhaust passage; Exhaust throttle valve substantially fully closed pressure difference generating means for generating a pressure difference in the exhaust throttle valve driving means so that the exhaust throttle valve is substantially fully closed so that the operating state is either the brake state or the brake state. and exhaust throttle valve partial closing pressure difference generating means for generating a pressure difference in the exhaust throttle valve driving means so that the exhaust throttle valve is in a partially closed state when the engine operating state is in a running heating state; The pressure difference generated in the exhaust throttle valve driving means is controlled so that the exhaust pressure in the exhaust passage upstream of the exhaust throttle valve is maintained at a predetermined value when the exhaust throttle valve is in a partially closed state. a first generation pressure difference adjusting means that adjusts based on exhaust pressure; and a pressure difference generated in the exhaust throttle valve driving means during a transition period when switching the exhaust throttle valve from a substantially fully closed state to a partially closed state. adjust the pressure difference generated in the exhaust throttle valve driving means so that the pressure difference suddenly changes from a pressure difference corresponding to a substantially fully closed state of the exhaust throttle valve to a pressure difference corresponding to a partially closed state of the exhaust throttle valve; An exhaust throttle valve control device for a diesel engine, comprising: a second generated pressure difference adjusting means;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2741384U JPS60141436U (en) | 1984-02-29 | 1984-02-29 | Diesel engine exhaust throttle valve control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2741384U JPS60141436U (en) | 1984-02-29 | 1984-02-29 | Diesel engine exhaust throttle valve control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60141436U true JPS60141436U (en) | 1985-09-19 |
| JPH0236913Y2 JPH0236913Y2 (en) | 1990-10-05 |
Family
ID=30524343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2741384U Granted JPS60141436U (en) | 1984-02-29 | 1984-02-29 | Diesel engine exhaust throttle valve control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60141436U (en) |
-
1984
- 1984-02-29 JP JP2741384U patent/JPS60141436U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0236913Y2 (en) | 1990-10-05 |
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