JPH01139077U - - Google Patents
Info
- Publication number
- JPH01139077U JPH01139077U JP3607988U JP3607988U JPH01139077U JP H01139077 U JPH01139077 U JP H01139077U JP 3607988 U JP3607988 U JP 3607988U JP 3607988 U JP3607988 U JP 3607988U JP H01139077 U JPH01139077 U JP H01139077U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- air flow
- amount
- fuel injection
- negative pressure
- 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 21
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案による燃料噴射装置の一実施例
を示す略断面図、第２図はスロー系燃料制御部の
別の実施例を示す略断面図である。
１，１′，３４……スロー系燃料制御部、２…
…メイン系燃料制御部、１０，２６……負圧室、
１１……燃料ダイアフラム、１５，２７……燃料
送出室、１５ａ，２７ａ……開口部、１６……燃
料ダイアフラム、１７，１７′……パイロツトジ
エツト、１９ａ，１９ａ′，３０ａ……燃料バル
ブ、２４……第一ダイアフラム、２８……第二ダ
イアフラム、３２……メインジエツト。
FIG. 1 is a schematic sectional view showing one embodiment of a fuel injection device according to the present invention, and FIG. 2 is a schematic sectional view showing another embodiment of a slow system fuel control section. 1, 1', 34...Slow system fuel control section, 2...
... Main system fuel control section, 10, 26 ... Negative pressure chamber,
11... Fuel diaphragm, 15, 27... Fuel delivery chamber, 15a, 27a... Opening, 16... Fuel diaphragm, 17, 17'... Pilot jet, 19a, 19a', 30a... Fuel valve, 24...first diaphragm, 28...second diaphragm, 32...main jet.
Claims (1)
ると共に、空気流量によつて生じる負圧と大気圧
との圧力差と燃料噴射量によつて生じるジエツト
の前後の燃圧差とをバランスさせて混合気の空燃
比を一定にするようにした燃料制御部を備えた多
気筒エンジン用の燃料噴射装置において、 少量の空気流量に応じて少量の燃料量を噴射せ
しめるスロー系燃料制御部を各気筒毎に設けると
共に、大量の空気流量に応じて大量の燃料量を各
気筒毎に分配して夫々噴射せしめる単一のメイン
系燃料制御部を設けたことを特徴とする燃料噴射
装置。 (2) 前記メイン系燃料制御部に導入される負圧
は各気筒毎の空気流量によつて生じる負圧を各負
圧通路を介して合成して平均化したものであるこ
とを特徴とする実用新案登録請求の範囲(1)に記
載の燃料噴射装置。[Scope of Claim for Utility Model Registration] (1) The amount of fuel injection is controlled according to the air flow rate, and the pressure difference between the negative pressure generated by the air flow rate and atmospheric pressure and the amount of jet generated by the amount of fuel injection are controlled. In a fuel injection device for a multi-cylinder engine, which is equipped with a fuel control unit that balances the fuel pressure difference and keeps the air-fuel ratio of the mixture constant, a small amount of fuel is injected in response to a small amount of air flow. A slow system fuel control section is provided for each cylinder, and a single main system fuel control section is provided that distributes and injects a large amount of fuel to each cylinder according to the large amount of air flow. fuel injection device. (2) The negative pressure introduced into the main system fuel control section is characterized in that the negative pressure generated by the air flow rate of each cylinder is combined and averaged through each negative pressure passage. A fuel injection device according to claim (1) of utility model registration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3607988U JPH01139077U (en) | 1988-03-18 | 1988-03-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3607988U JPH01139077U (en) | 1988-03-18 | 1988-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01139077U true JPH01139077U (en) | 1989-09-22 |
Family
ID=31262696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3607988U Pending JPH01139077U (en) | 1988-03-18 | 1988-03-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01139077U (en) |
-
1988
- 1988-03-18 JP JP3607988U patent/JPH01139077U/ja active Pending