JPH0294370U - - Google Patents
Info
- Publication number
- JPH0294370U JPH0294370U JP202589U JP202589U JPH0294370U JP H0294370 U JPH0294370 U JP H0294370U JP 202589 U JP202589 U JP 202589U JP 202589 U JP202589 U JP 202589U JP H0294370 U JPH0294370 U JP H0294370U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel
- fuel ratio
- negative pressure
- pressure chamber
- 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 20
- 239000000203 mixture Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Description
第１図は本考案による燃料噴射装置の空燃比制
御機構の一実施例を示す概略断面図、第２図は減
速時等における混合気の空燃比を示す図、第３図
は開閉制御手段の別の実施例を示す要部断面図、
第４図は先行技術に関するものであつて、Ａはス
ロツトルバルブ開度、Ｂはエンジン回転数、Ｃは
混合気の空燃比を示す図である。
５……スロー系燃料制御手段、１０……負圧室
、１１……負圧ダイアフラム、１２……大気圧室
、１３……上流室、１４……下流室、１５……燃
料ダイアフラム、１６……ジエツト、１９……負
圧導入通路、２１，２５……減速バルブ。
FIG. 1 is a schematic sectional view showing an embodiment of the air-fuel ratio control mechanism of a fuel injection device according to the present invention, FIG. 2 is a view showing the air-fuel ratio of the air-fuel mixture during deceleration, etc., and FIG. 3 is a diagram showing the air-fuel ratio of the air-fuel mixture during deceleration, etc. A sectional view of main parts showing another embodiment,
FIG. 4 relates to the prior art, and is a diagram in which A shows the throttle valve opening, B shows the engine speed, and C shows the air-fuel ratio of the air-fuel mixture. 5... Slow system fuel control means, 10... Negative pressure chamber, 11... Negative pressure diaphragm, 12... Atmospheric pressure chamber, 13... Upstream chamber, 14... Downstream chamber, 15... Fuel diaphragm, 16... ...Jet, 19...Negative pressure introduction passage, 21, 25...Deceleration valve.
Claims (1)
気圧室との圧力差と、ジエツトの前後の室の燃圧
差とをバランスさせるように燃料吐出量を制御し
て、混合気の空燃比を一定に維持せしめるように
した圧力バランス式の燃料噴射装置において、 マニホールド負圧を前記大気圧室に印加せしめ
る通路と、該通路を通常閉鎖せしめていて減速時
に開放せしめる開閉制御手段と、が備えられてい
ることを特徴とする空燃比制御機構。[Claim for Utility Model Registration] The amount of fuel discharged is adjusted to balance the pressure difference between the negative pressure chamber and the atmospheric pressure chamber, to which negative pressure is applied according to the air flow rate, and the fuel pressure difference between the chambers before and after the jet. A pressure-balanced fuel injection device that controls the air-fuel ratio of the air-fuel mixture to maintain a constant air-fuel ratio has a passageway for applying manifold negative pressure to the atmospheric pressure chamber, and a passageway that is normally closed to maintain a constant air-fuel ratio of the air-fuel mixture during deceleration. An air-fuel ratio control mechanism comprising: opening/closing control means for opening/closing the air-fuel ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP202589U JPH0294370U (en) | 1989-01-11 | 1989-01-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP202589U JPH0294370U (en) | 1989-01-11 | 1989-01-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0294370U true JPH0294370U (en) | 1990-07-26 |
Family
ID=31202435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP202589U Pending JPH0294370U (en) | 1989-01-11 | 1989-01-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0294370U (en) |
-
1989
- 1989-01-11 JP JP202589U patent/JPH0294370U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1417081A (en) | Internal combustion engine exhaust gas recirculation system | |
| JPH0294370U (en) | ||
| JPH0241337Y2 (en) | ||
| JPH01142539U (en) | ||
| JPH024970U (en) | ||
| JPH024969U (en) | ||
| JPS63143768U (en) | ||
| JPS6162267U (en) | ||
| JPH03119573U (en) | ||
| JPH0321568U (en) | ||
| JPH0399866U (en) | ||
| JPH0383377U (en) | ||
| JPH01139077U (en) | ||
| JPS63174561U (en) | ||
| JPH03116768U (en) | ||
| JPH02176123A (en) | Air-fuel ratio control mechanism for fuel injection device | |
| JPH03108862U (en) | ||
| JPH0327750B2 (en) | ||
| JPS63143749U (en) | ||
| JPH0434437U (en) | ||
| JPH0237272U (en) | ||
| JPH01134741U (en) | ||
| JPH0261173U (en) | ||
| JPS6393457U (en) | ||
| JPH0392565U (en) |