JPH0220741U - - Google Patents
Info
- Publication number
- JPH0220741U JPH0220741U JP9837788U JP9837788U JPH0220741U JP H0220741 U JPH0220741 U JP H0220741U JP 9837788 U JP9837788 U JP 9837788U JP 9837788 U JP9837788 U JP 9837788U JP H0220741 U JPH0220741 U JP H0220741U
- Authority
- JP
- Japan
- Prior art keywords
- throttle valve
- negative pressure
- actuator
- atmospheric air
- introduces
- 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
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
第１図は本考案の一実施例に係わる電動スロツ
トル弁の安全機構を示す図である。
１１……電動スロツトル弁、１５……ステツパ
モータ、１６……負圧アクチユエータ、１６Ｓ…
…復帰ばね、１８，１９……電磁開閉弁。
FIG. 1 is a diagram showing a safety mechanism of an electric throttle valve according to an embodiment of the present invention. 11...Electric throttle valve, 15...Stepper motor, 16...Negative pressure actuator, 16S...
...Return spring, 18, 19...Solenoid on-off valve.
Claims (1)
の開度を制御して、エンジン出力を制御するよう
に構成されたエンジンにおいて、上記スロツトル
弁を閉方向に付勢する付勢部材が内装された負圧
アクチユエータと、上記スロツトル弁の正常時に
は上記負圧アクチユエータの負圧室に大気を導入
し、異常時には大気の導入が遮断される第１の切
換え弁と、上記スロツトル弁の異常時は上記負圧
アクチユエータの負圧室に上記スロツトル弁下流
の負圧を導入する第２の切換え弁とを具備したこ
とを特徴とする電動スロツトル弁の安全機構。 In an engine configured to control engine output by controlling the opening degree of a throttle valve operated by an electric actuator, a negative pressure actuator is provided with an internal biasing member that biases the throttle valve in a closing direction; , a first switching valve that introduces atmospheric air into the negative pressure chamber of the negative pressure actuator when the throttle valve is normal, and blocks the introduction of atmospheric air when the throttle valve is abnormal; A safety mechanism for an electric throttle valve, comprising a second switching valve that introduces negative pressure downstream of the throttle valve into a pressure chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988098377U JP2524047Y2 (en) | 1988-07-27 | 1988-07-27 | Safety mechanism of electric throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988098377U JP2524047Y2 (en) | 1988-07-27 | 1988-07-27 | Safety mechanism of electric throttle valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0220741U true JPH0220741U (en) | 1990-02-13 |
| JP2524047Y2 JP2524047Y2 (en) | 1997-01-29 |
Family
ID=31324585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988098377U Expired - Lifetime JP2524047Y2 (en) | 1988-07-27 | 1988-07-27 | Safety mechanism of electric throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2524047Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6081241U (en) * | 1983-11-10 | 1985-06-05 | 愛三工業株式会社 | Engine throttle valve control device |
| JPS60173641U (en) * | 1984-04-26 | 1985-11-18 | 三國工業株式会社 | Safety mechanism of throttle valve drive device |
| JPS61140140U (en) * | 1985-02-21 | 1986-08-30 |
-
1988
- 1988-07-27 JP JP1988098377U patent/JP2524047Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6081241U (en) * | 1983-11-10 | 1985-06-05 | 愛三工業株式会社 | Engine throttle valve control device |
| JPS60173641U (en) * | 1984-04-26 | 1985-11-18 | 三國工業株式会社 | Safety mechanism of throttle valve drive device |
| JPS61140140U (en) * | 1985-02-21 | 1986-08-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2524047Y2 (en) | 1997-01-29 |
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