JPS6152228U - - Google Patents
Info
- Publication number
- JPS6152228U JPS6152228U JP13614684U JP13614684U JPS6152228U JP S6152228 U JPS6152228 U JP S6152228U JP 13614684 U JP13614684 U JP 13614684U JP 13614684 U JP13614684 U JP 13614684U JP S6152228 U JPS6152228 U JP S6152228U
- Authority
- JP
- Japan
- Prior art keywords
- burning
- signal
- switching means
- hot wire
- hot
- 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
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は熱線流量計の付着物焼切装置の従来例を示す
回路図である。
１…熱線抵抗、６…パワートランジスタ、７…
制御装置、８…リレー、１０…焼切用トランジス
タ、２３…コンデンサ、２４…比較器、２７…第
２トランジスタ、２８…第３トランジスタ。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
The figure is a circuit diagram showing a conventional example of a deposit burning device for a hot wire flowmeter. 1... Hot wire resistance, 6... Power transistor, 7...
Control device, 8... Relay, 10... Transistor for burnout, 23... Capacitor, 24... Comparator, 27... Second transistor, 28... Third transistor.
Claims (1)
ニツシヨンスイツチＯＦＦ時に制御装置からの焼
切信号によつて焼切用スイツチング手段を導通さ
せることにより、大電流を供給して熱線抵抗の付
着物を焼切る熱線流量計の焼切装置において、前
記制御装置の焼切信号出力端子に抵抗を介して接
続され前記焼切用スイツチング手段への焼切信号
の出力時間の増大につれて充電されるフンデンサ
と、該コンデンサの充電圧て所定値になつたとき
に信号を発する比較手段と、該比較手段の信号に
より前記熱線抵抗との大電流供給を強制的に停止
させる第２のスイツチング手段と、前記コンデン
サは並列接続されイグニツシヨンスイツチＯＮ時
に前記コンデンサの電荷を放電する第３のスイツ
チング手段と、を設けたことを特徴とする自動車
用内燃機関における熱線流量計の付着物焼切装置
。 When the ignition switch is turned off, a burnout switching means is made conductive to the hot wire resistance installed in the intake passage of the engine by a burnout signal from the control device, thereby supplying a large current to the hot wire resistance. In a burning device for a hot wire flow meter for burning kimono, a fundensor is connected to the burning signal output terminal of the control device via a resistor and is charged as the output time of the burning signal to the burning switching means increases. a comparison means for emitting a signal when the charging voltage of the capacitor reaches a predetermined value; a second switching means for forcibly stopping the large current supply to the hot wire resistor based on the signal from the comparison means; 1. A device for burning off deposits on a hot-wire flowmeter in an internal combustion engine for an automobile, characterized in that capacitors are connected in parallel and third switching means discharges the charge of the capacitors when an ignition switch is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13614684U JPS6152228U (en) | 1984-09-10 | 1984-09-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13614684U JPS6152228U (en) | 1984-09-10 | 1984-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6152228U true JPS6152228U (en) | 1986-04-08 |
Family
ID=30694616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13614684U Pending JPS6152228U (en) | 1984-09-10 | 1984-09-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6152228U (en) |
-
1984
- 1984-09-10 JP JP13614684U patent/JPS6152228U/ja active Pending
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