JPH0237272U - - Google Patents
Info
- Publication number
- JPH0237272U JPH0237272U JP11561488U JP11561488U JPH0237272U JP H0237272 U JPH0237272 U JP H0237272U JP 11561488 U JP11561488 U JP 11561488U JP 11561488 U JP11561488 U JP 11561488U JP H0237272 U JPH0237272 U JP H0237272U
- Authority
- JP
- Japan
- Prior art keywords
- air valve
- negative pressure
- downstream side
- valve
- air
- 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 description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
第１図は本考案に係る燃料噴射装置の加速制御
機構の要部断面図、第２図は先行技術に係る燃料
噴射装置の断面図である。
１……吸気通路、２……エアバルブ、５……バ
キユームアクチユエータ、９……負圧導入通路、
１１……スロツトルバルブ、１３……スロー系燃
料制御部、１８……スロー系圧力センシングポー
ト、３１……低温用ジエツト、３２……バイパス
通路、３３……バルブ、３４……水温センサー、
３５……電子制御ユニツト。
FIG. 1 is a sectional view of a main part of an acceleration control mechanism of a fuel injection device according to the present invention, and FIG. 2 is a sectional view of a fuel injection device according to the prior art. 1... Intake passage, 2... Air valve, 5... Vacuum actuator, 9... Negative pressure introduction passage,
11...Throttle valve, 13...Slow system fuel control section, 18...Slow system pressure sensing port, 31...Low temperature jet, 32...Bypass passage, 33...Valve, 34...Water temperature sensor,
35...Electronic control unit.
Claims (1)
、該エ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バキユームアクチユエータを
設けると共に、前記エアバルブ下流側の負圧に応
じて燃料吐出量を制御する燃料制御部を備えた燃
料噴射装置において、 前記エアバルブ下流側の負圧をバキユームアク
チユエータに導入する通路の途中に低温用ジエツ
トを設け、該低温用ジエツトをバイパスして前記
通路に両端が接続されるバイパス通路に、低温時
に該バイパス通路を閉鎖せしめるバルブが設けら
れていて、低温状態での加速時に前記エアバルブ
を緩作動させてエアバルブ下流側の負圧を瞬間的
に増大せしめ濃混合気を供給し得るようにしたこ
とを特徴とする加速制御機構。[Claims for Utility Model Registration] An air valve is provided on the upstream side of the throttle valve, a vacuum actuator is provided for controlling the opening and closing of the air valve in accordance with negative pressure on the downstream side of the air valve, and a vacuum actuator is provided on the downstream side of the air valve. In a fuel injection device equipped with a fuel control unit that controls a fuel discharge amount according to negative pressure, a low temperature jet is provided in the middle of a passage that introduces negative pressure on the downstream side of the air valve to a vacuum actuator. A bypass passage whose both ends are connected to the passage by bypassing the air jet is provided with a valve that closes the bypass passage when the temperature is low, and when accelerating in a low temperature state, the air valve is operated slowly to close the air valve on the downstream side of the air valve. An acceleration control mechanism characterized by being able to instantaneously increase negative pressure and supply a rich air-fuel mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11561488U JPH0237272U (en) | 1988-09-02 | 1988-09-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11561488U JPH0237272U (en) | 1988-09-02 | 1988-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0237272U true JPH0237272U (en) | 1990-03-12 |
Family
ID=31357435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11561488U Pending JPH0237272U (en) | 1988-09-02 | 1988-09-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237272U (en) |
-
1988
- 1988-09-02 JP JP11561488U patent/JPH0237272U/ja active Pending