JPS646317U - - Google Patents
Info
- Publication number
- JPS646317U JPS646317U JP10091987U JP10091987U JPS646317U JP S646317 U JPS646317 U JP S646317U JP 10091987 U JP10091987 U JP 10091987U JP 10091987 U JP10091987 U JP 10091987U JP S646317 U JPS646317 U JP S646317U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- engine
- temperature
- detection means
- temperature detection
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Exhaust Gas After Treatment (AREA)
Description
第１図乃至第３図はこの考案の第１の実施例に
係わり、第１図は冷却系統の概略を示す全体構成
図、第２図は冷却装置の詳細を示す断面図、第３
図は排気冷却の作用説明図、第４図は第２の実施
例の冷却装置の断面部分を含む排気系の全体図で
ある。
９…排気マニホールド、１３…触媒、１７…冷
却水通路、２７…電磁弁（開閉弁）、２５…コン
トロールユニツト（制御手段）、３５…水温セン
サ（機関温度検出手段）、３７…排温センサ（排
気温度検出手段）。
1 to 3 relate to the first embodiment of this invention, in which FIG. 1 is an overall configuration diagram showing an outline of the cooling system, FIG. 2 is a sectional view showing details of the cooling device, and FIG.
The figure is an explanatory diagram of the effect of exhaust cooling, and FIG. 4 is an overall view of the exhaust system including a cross-sectional portion of the cooling device of the second embodiment. 9...Exhaust manifold, 13...Catalyst, 17...Cooling water passage, 27...Solenoid valve (on/off valve), 25...Control unit (control means), 35...Water temperature sensor (engine temperature detection means), 37...Exhaust temperature sensor ( exhaust temperature detection means).
Claims (1)
と、この触媒の上流側の排気通路近傍に設けられ
た機関の冷却水通路と、この冷却水通路の下流に
設けられ冷却水通路への冷却水の供給を制御する
開閉弁と、機関の温度を検出する機関温度検出手
段と、排気の温度を検出する排気温度検出手段と
、前記機関温度検出手段及び排気温度検出手段の
出力信号を受け機関温度が所定値以下でかつ排気
温度が所定値以上のとき前記開閉弁を開弁する制
御手段とを有することを特徴とする排気浄化用触
媒の冷却装置。 A catalyst for exhaust purification installed in the middle of the exhaust passage, an engine cooling water passage installed near the exhaust passage on the upstream side of this catalyst, and a cooling water passage installed downstream of this cooling water passage. an on-off valve for controlling water supply, an engine temperature detection means for detecting the temperature of the engine, an exhaust temperature detection means for detecting the temperature of the exhaust gas, and an engine receiving output signals from the engine temperature detection means and the exhaust temperature detection means. 1. A cooling device for an exhaust gas purifying catalyst, comprising: control means for opening the on-off valve when the temperature is below a predetermined value and the exhaust gas temperature is above a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10091987U JPS646317U (en) | 1987-07-02 | 1987-07-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10091987U JPS646317U (en) | 1987-07-02 | 1987-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS646317U true JPS646317U (en) | 1989-01-13 |
Family
ID=31329435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10091987U Pending JPS646317U (en) | 1987-07-02 | 1987-07-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS646317U (en) |
-
1987
- 1987-07-02 JP JP10091987U patent/JPS646317U/ja active Pending