JPS6140626U - Deposit burning device for hot wire flowmeter in internal combustion engine - Google Patents
Deposit burning device for hot wire flowmeter in internal combustion engineInfo
- Publication number
- JPS6140626U JPS6140626U JP12466484U JP12466484U JPS6140626U JP S6140626 U JPS6140626 U JP S6140626U JP 12466484 U JP12466484 U JP 12466484U JP 12466484 U JP12466484 U JP 12466484U JP S6140626 U JPS6140626 U JP S6140626U
- Authority
- JP
- Japan
- Prior art keywords
- hot
- internal combustion
- combustion engine
- hot wire
- burnout
- 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
- Measuring Volume Flow (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
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、第３図
は第２図の各部の信号波形図である。
１・・・熱線抵抗、６・・・パワートランジスタ、７・
・・制御装置、１１・・・焼切用トランジスタ、２１・
・・抵抗、２２・・・サーミスタ。Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is a circuit diagram showing a conventional example of a deposit burning device for a hot wire flowmeter, and Fig. 3 is a signal waveform diagram of each part of Fig. 2. be. 1... Hot wire resistance, 6... Power transistor, 7.
...control device, 11...transistor for burning out, 21.
...Resistance, 22...Thermistor.
Claims (1)
回路からの焼切信号によってスイッチング素子を導通さ
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付着物焼切回路において、前記焼切
用信号発生回路とスイッチング素子との間に、該スイッ
チング素子に焼切信号発生回路から印加される電圧を焼
切信号の出力時間の増大につれて減少させる抵抗回路を
、介装したことを特徴とする内燃機関におげる熱線流量
計の付着物焼切装置。A hot-wire flowmeter that burns off deposits on the hot-wire resistance by supplying a large current to the hot-wire resistance installed in the engine's intake passage by making the switching element conductive using the burn-off signal from the burn-off signal generation circuit. In the deposit burnout circuit, a resistor circuit is provided between the burnout signal generation circuit and the switching element, and reduces the voltage applied to the switching element from the burnout signal generation circuit as the output time of the burnout signal increases. A device for burning off deposits on a hot wire flowmeter for an internal combustion engine, characterized in that the device is equipped with the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12466484U JPS6140626U (en) | 1984-08-17 | 1984-08-17 | Deposit burning device for hot wire flowmeter in internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12466484U JPS6140626U (en) | 1984-08-17 | 1984-08-17 | Deposit burning device for hot wire flowmeter in internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6140626U true JPS6140626U (en) | 1986-03-14 |
Family
ID=30683391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12466484U Pending JPS6140626U (en) | 1984-08-17 | 1984-08-17 | Deposit burning device for hot wire flowmeter in internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6140626U (en) |
-
1984
- 1984-08-17 JP JP12466484U patent/JPS6140626U/en active Pending
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