JPS63126537U - - Google Patents
Info
- Publication number
- JPS63126537U JPS63126537U JP1905487U JP1905487U JPS63126537U JP S63126537 U JPS63126537 U JP S63126537U JP 1905487 U JP1905487 U JP 1905487U JP 1905487 U JP1905487 U JP 1905487U JP S63126537 U JPS63126537 U JP S63126537U
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- exhaust passage
- alcohol
- detected temperature
- intake system
- 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
- 239000003054 catalyst Substances 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 239000000446 fuel Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Exhaust Gas After Treatment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の実施例に係るアルコールエン
ジンの構成図、第２図は触媒温度とアルデヒド濃
度との関係図、第３図は暖機時における排気温度
、触媒温度、アルデヒド濃度の変化の説明図、第
４図は従来におけるアルコールエンジンの構成図
、第５図は従来におけるアルデヒド濃度の変化等
を示す説明図である。
１…触媒、２…排気通路、３…電磁弁、５…絞
り弁、６…吸気通路、７…制御装置、８，９…ス
イツチ、１０…温度比較器、１１…電圧比較器、
１３…車速センサ、１４…アクセル開度センサ、
１５…シフト位置センサ。
Figure 1 is a block diagram of an alcohol engine according to an embodiment of the present invention, Figure 2 is a diagram of the relationship between catalyst temperature and aldehyde concentration, and Figure 3 is a diagram of changes in exhaust temperature, catalyst temperature, and aldehyde concentration during warm-up. An explanatory diagram, FIG. 4 is a configuration diagram of a conventional alcohol engine, and FIG. 5 is an explanatory diagram showing changes in aldehyde concentration, etc. in the conventional system. DESCRIPTION OF SYMBOLS 1... Catalyst, 2... Exhaust passage, 3... Solenoid valve, 5... Throttle valve, 6... Intake passage, 7... Control device, 8, 9... Switch, 10... Temperature comparator, 11... Voltage comparator,
13...Vehicle speed sensor, 14...Accelerator opening sensor,
15...Shift position sensor.
Claims (1)
気通路にアルデヒドの濃度を低減させる触媒を設
けたアルコールエンジンの吸気装置において、車
両の停止検出手段により検知した車両が停止状態
にあり、且つ、触媒における検出温度又は触媒よ
り下流の排気通路における検出温度が一定領域に
あるとき、吸気通路に設けた絞り弁を作動させる
制御装置を有していることを特徴とするアルコー
ルエンジンの吸気装置。 In an intake system for an alcohol engine that uses alcohol as part or all of the fuel and has a catalyst installed in the exhaust passage to reduce the concentration of aldehyde, when the vehicle is in a stopped state as detected by the vehicle stop detection means, and the catalyst is An intake system for an alcohol engine, comprising a control device that operates a throttle valve provided in an intake passage when the detected temperature in the exhaust passage or the detected temperature in the exhaust passage downstream of the catalyst is in a certain range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1905487U JPS63126537U (en) | 1987-02-12 | 1987-02-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1905487U JPS63126537U (en) | 1987-02-12 | 1987-02-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63126537U true JPS63126537U (en) | 1988-08-18 |
Family
ID=30813302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1905487U Pending JPS63126537U (en) | 1987-02-12 | 1987-02-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63126537U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5352979U (en) * | 1976-09-29 | 1978-05-06 | ||
| JPS57179348A (en) * | 1981-04-28 | 1982-11-04 | Hino Motors Ltd | Exhaust gas purifying apparatus for internal combustion engine |
| JPS6120031A (en) * | 1984-07-09 | 1986-01-28 | Nippon Telegr & Teleph Corp <Ntt> | Resist material and its preparation |
-
1987
- 1987-02-12 JP JP1905487U patent/JPS63126537U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5352979U (en) * | 1976-09-29 | 1978-05-06 | ||
| JPS57179348A (en) * | 1981-04-28 | 1982-11-04 | Hino Motors Ltd | Exhaust gas purifying apparatus for internal combustion engine |
| JPS6120031A (en) * | 1984-07-09 | 1986-01-28 | Nippon Telegr & Teleph Corp <Ntt> | Resist material and its preparation |