JPH0365865U - - Google Patents
Info
- Publication number
- JPH0365865U JPH0365865U JP12563989U JP12563989U JPH0365865U JP H0365865 U JPH0365865 U JP H0365865U JP 12563989 U JP12563989 U JP 12563989U JP 12563989 U JP12563989 U JP 12563989U JP H0365865 U JPH0365865 U JP H0365865U
- Authority
- JP
- Japan
- Prior art keywords
- air
- valve
- switching valve
- pump
- assist
- 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
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims 2
- 238000000746 purification Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Exhaust Gas After Treatment (AREA)
Description
第１図は本考案の一実施例に係る電子制御式燃
料噴射装置の全体系統図、第２図は第１図の装置
の作動制御フロー図、である。
１……加圧ポンプ、２……第１の空気切替弁、
３……第２の空気切替弁、４……第１の負圧切替
弁、５……第２の負圧切替弁、６……（加圧ポン
プ用の）エアフローメータ、７……（エアアシス
トタイプ）燃料噴射弁、８……（加圧ポンプ用の
）エアクリーナ、１１……エアアシスト導管、１
２……２次空気導管、１３……ＥＣＵ。
FIG. 1 is an overall system diagram of an electronically controlled fuel injection device according to an embodiment of the present invention, and FIG. 2 is an operational control flow diagram of the device shown in FIG. 1. 1... Pressure pump, 2... First air switching valve,
3... Second air switching valve, 4... First negative pressure switching valve, 5... Second negative pressure switching valve, 6... Air flow meter (for pressure pump), 7... (Air Assist type) Fuel injection valve, 8... Air cleaner (for pressurizing pump), 11... Air assist conduit, 1
2... Secondary air conduit, 13... ECU.
Claims (1)
とともに下流に第２の空気切替弁を設け、 第２の空気切替弁の２つの出口のうち一方にエ
アアシストタイプ燃料噴射弁に接続するエアアシ
スト導管を接続するとともに、他方に排気浄化用
の２次空気導管を接続し、 加圧ポンプと第１、第２の空気切替弁を、所定
車速以下で加圧ポンプＯＮ、かつ加圧ポンプＯＮ
状態下で、エンジン暖機中にエアインジエクシヨ
ンＯＮ、暖機後にエアアシストＯＮとなるように
制御した、 ことを特徴とする電子制御式燃料噴射装置。[Claims for Utility Model Registration] A first air switching valve is provided upstream of the pressurizing pump, and a second air switching valve is provided downstream, and one of the two outlets of the second air switching valve is provided with an air assist valve. Connect the air assist conduit that connects to the type fuel injection valve, and connect the secondary air conduit for exhaust purification to the other side, and pressurize the pressurizing pump and the first and second air switching valves at a predetermined vehicle speed or below. Pump ON and pressure pump ON
1. An electronically controlled fuel injection device characterized in that the air injection system is controlled so that air injection is turned on while the engine is warming up and air assist is turned on after warming up the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12563989U JPH0365865U (en) | 1989-10-30 | 1989-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12563989U JPH0365865U (en) | 1989-10-30 | 1989-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0365865U true JPH0365865U (en) | 1991-06-26 |
Family
ID=31673501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12563989U Pending JPH0365865U (en) | 1989-10-30 | 1989-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0365865U (en) |
-
1989
- 1989-10-30 JP JP12563989U patent/JPH0365865U/ja active Pending
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