JPH01119840U - - Google Patents
Info
- Publication number
- JPH01119840U JPH01119840U JP1464288U JP1464288U JPH01119840U JP H01119840 U JPH01119840 U JP H01119840U JP 1464288 U JP1464288 U JP 1464288U JP 1464288 U JP1464288 U JP 1464288U JP H01119840 U JPH01119840 U JP H01119840U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- pump
- plunger
- cam disk
- 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
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 6
Description
第１図乃至第７図はこの考案の一実施例に係わ
り、第１図は燃料噴射ポンプの断面図、第２図は
遅延手段の詳細な断面図、第３図は遅延手段の作
用説明図、第４図は制御回路を示すブロツク図、
第５図は作動回路を示すブロツク図、第６図はパ
イロツト噴射を示す説明図、第７図は機関始動時
での制御例を示す説明図、第８図乃至第１１図は
従来例に係わり、第８図は燃料噴射ポンプの断面
図、第９図は燃料噴射例を示す説明図、第１０図
はカムデイスクのカム特性を示す説明図、第１１
図は機関始動時での制御例を示す説明図である。
１……駆動シヤフト、３……ポンプ室、５……
カムデイスク、１４……プランジヤ、１５……プ
ランジヤ室、１６……ピン、１７……ピストン、
２１……シリンダ、２２……シリンダ室、２３…
…ソレノイド、２５……ロツド、３９……高速電
磁弁、４５……通路、４７……第１の連通路、４
９……第２の連通路。
Figures 1 to 7 relate to an embodiment of this invention, with Figure 1 being a sectional view of the fuel injection pump, Figure 2 being a detailed sectional view of the delay means, and Figure 3 being an explanatory diagram of the action of the delay means. , FIG. 4 is a block diagram showing the control circuit,
Fig. 5 is a block diagram showing the operating circuit, Fig. 6 is an explanatory drawing showing pilot injection, Fig. 7 is an explanatory drawing showing an example of control at engine startup, and Figs. 8 to 11 are related to conventional examples. , FIG. 8 is a sectional view of the fuel injection pump, FIG. 9 is an explanatory diagram showing an example of fuel injection, FIG. 10 is an explanatory diagram showing the cam characteristics of the cam disc, and FIG.
The figure is an explanatory diagram showing an example of control when starting the engine. 1... Drive shaft, 3... Pump chamber, 5...
Cam disc, 14... plunger, 15... plunger chamber, 16... pin, 17... piston,
21...Cylinder, 22...Cylinder chamber, 23...
... Solenoid, 25 ... Rod, 39 ... High speed solenoid valve, 45 ... Passage, 47 ... First communication path, 4
9...Second communication path.
Claims (1)
ムデイスクを設けると共に、このカムデイスクの
回転によつて往復移動しポンプ室内から供給され
るプランジヤ室内の燃料を噴射ノズル側へ圧送す
るプランジヤを設け、前記ポンプ室とプランジヤ
室とを連通する連通路を形成して、この連通路を
開閉制御する電磁弁を設け、この電磁弁の開閉に
より燃料噴射制御を行うようにしたデイーゼル機
関の電子制御式燃料噴射ポンプにおいて、機関始
動時での燃料噴射時期を遅延させる方向に、前記
カムデイスクの位相を変化させる遅延手段を設け
たことを特徴とするデイーゼル機関の電子制御式
燃料噴射ポンプ。 A cam disk rotated by a drive shaft and having a cam surface is provided, and a plunger is provided that moves reciprocally by the rotation of the cam disk and pressure-feeds fuel in the plunger chamber supplied from the pump chamber to the injection nozzle side, An electronically controlled fuel for a diesel engine, in which a communication passage communicating between the pump chamber and the plunger chamber is formed, a solenoid valve is provided to control opening and closing of the communication passage, and fuel injection is controlled by opening and closing the solenoid valve. 1. An electronically controlled fuel injection pump for a diesel engine, characterized in that the injection pump is provided with a delay means for changing the phase of the cam disk in a direction to delay the fuel injection timing at the time of starting the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1464288U JPH01119840U (en) | 1988-02-08 | 1988-02-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1464288U JPH01119840U (en) | 1988-02-08 | 1988-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01119840U true JPH01119840U (en) | 1989-08-14 |
Family
ID=31226026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1464288U Pending JPH01119840U (en) | 1988-02-08 | 1988-02-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01119840U (en) |
-
1988
- 1988-02-08 JP JP1464288U patent/JPH01119840U/ja active Pending
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