JPH0256858U - - Google Patents
Info
- Publication number
- JPH0256858U JPH0256858U JP13659688U JP13659688U JPH0256858U JP H0256858 U JPH0256858 U JP H0256858U JP 13659688 U JP13659688 U JP 13659688U JP 13659688 U JP13659688 U JP 13659688U JP H0256858 U JPH0256858 U JP H0256858U
- Authority
- JP
- Japan
- Prior art keywords
- opening
- negative pressure
- air valve
- closing
- sensor
- 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
- 239000000446 fuel Substances 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案によるエアーフローセンサの概
略断面図、第２図及び第３図は夫々空気流量と要
求差圧の関係を示す図である。
２……エアバルブ、３……アクチユエータ、９
……サーボバルブ、１８……センサ、１９……負
圧印加通路、２０……オリフイス、２１……ソレ
ノイドバルブ、２２……制御手段。
FIG. 1 is a schematic sectional view of an air flow sensor according to the present invention, and FIGS. 2 and 3 are diagrams showing the relationship between air flow rate and required differential pressure, respectively. 2... Air valve, 3... Actuator, 9
... Servo valve, 18 ... Sensor, 19 ... Negative pressure application passage, 20 ... Orifice, 21 ... Solenoid valve, 22 ... Control means.
Claims (1)
アバルブ下流側の負圧に応じて該エアバルブの開
閉を制御するアクチユエータと、前記エアバルブ
下流側の負圧に応じて前記アクチユエータ内の負
圧の大きさを調整し得るサーボバルブとが備えら
れていて、エアバルブ下流側の負圧が一定に制御
されるようにした燃料供給装置において、 前記エアバルブ開度を検出するセンサと、前記
エアバルブの上流側と下流側とを連通する負圧印
加通路と、該負圧印加通路に設けられたオリフイ
スと、前記負圧印加通路に設けられていて前記セ
ンサの検出値に応じて開閉作動せしめられる開閉
手段と、前記センサの検出値に基づいて前記開閉
手段の開閉率を決定する制御手段とが備えられて
いて、前記オリフイスと開閉手段の間で得られる
合成負圧に基づいて空気流量に応じた差圧が出力
せしめられるようにしたことを特徴とするエアー
フローセンサ。 (2) 前記オリフイスに替えて第二開閉手段が備
えられていて、該第二開閉手段も前記制御手段に
よつてセンサの検出値に応じて開閉作動せしめら
れるようにしたことを特徴とするエアーフローセ
ンサ。[Claims for Utility Model Registration] (1) An air valve provided in an intake passage, an actuator that controls opening and closing of the air valve in response to negative pressure downstream of the air valve, and an actuator that controls opening and closing of the air valve in response to negative pressure downstream of the air valve. A sensor for detecting the opening degree of the air valve in a fuel supply device including a servo valve capable of adjusting the magnitude of the negative pressure in the actuator so as to control the negative pressure downstream of the air valve to a constant level. a negative pressure application passage that communicates between the upstream side and the downstream side of the air valve; an orifice provided in the negative pressure application passage; and an orifice provided in the negative pressure application passage that responds to the detected value of the sensor. An opening/closing means that is operated to open and close, and a control means that determines an opening/closing ratio of the opening/closing means based on a detected value of the sensor, and a control means that determines the opening/closing rate of the opening/closing means based on the synthetic negative pressure obtained between the orifice and the opening/closing means. An air flow sensor characterized by outputting a differential pressure according to air flow rate. (2) A second opening/closing means is provided in place of the orifice, and the second opening/closing means is also operated to open and close by the control means according to the detected value of the sensor. flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13659688U JPH0256858U (en) | 1988-10-19 | 1988-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13659688U JPH0256858U (en) | 1988-10-19 | 1988-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0256858U true JPH0256858U (en) | 1990-04-24 |
Family
ID=31397253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13659688U Pending JPH0256858U (en) | 1988-10-19 | 1988-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0256858U (en) |
-
1988
- 1988-10-19 JP JP13659688U patent/JPH0256858U/ja active Pending