JPS6334355U - - Google Patents
Info
- Publication number
- JPS6334355U JPS6334355U JP12832986U JP12832986U JPS6334355U JP S6334355 U JPS6334355 U JP S6334355U JP 12832986 U JP12832986 U JP 12832986U JP 12832986 U JP12832986 U JP 12832986U JP S6334355 U JPS6334355 U JP S6334355U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- fuel injection
- cut
- passage area
- port
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の実施例に係る燃料噴射制御装
置を構成する燃料噴射ポンプの要部縦断面図、第
２図は第１図の―要部矢視図、第３図は第２
図の状態変化図、第４図は第１図に示された通路
面積可変制御機構の作動特性図、第５図は従来の
燃料噴射制御装置の作動特性図である。
１……燃料噴射ポンプ、２……プランジヤ、３
……バレル、４……プランジヤスプリング、５…
…カムデイスク、６……デリベリバルブ、７……
燃焼室、９……通路面積可変制御機構、１１，１
２……コントロールスリーブ、１５……オリフイ
ス、２２……カツトオフポート、３０……制御機
構、４１……噴射管、４２……インジエクター。
FIG. 1 is a longitudinal cross-sectional view of a main part of a fuel injection pump constituting a fuel injection control device according to an embodiment of the present invention, FIG. 2 is a view of the main part of FIG.
4 is a diagram showing the operating characteristics of the variable passage area control mechanism shown in FIG. 1, and FIG. 5 is a diagram showing the operating characteristics of the conventional fuel injection control device. 1...Fuel injection pump, 2...Plunger, 3
...Barrel, 4...Plunger spring, 5...
...Cam disc, 6...Delivery valve, 7...
Combustion chamber, 9... Passage area variable control mechanism, 11,1
2... Control sleeve, 15... Orifice, 22... Cut-off port, 30... Control mechanism, 41... Injection pipe, 42... Injector.
Claims (1)
つて該プランジヤの頂面上に形成される燃料加圧
室内の燃料を加圧圧送可能とする一方、上記プラ
ンジヤの外側に、上記プランジヤの頂面に連通し
且つ側周面に開口するカツトオフポートを開閉し
得るようにコントロールスリーブを摺動自在に嵌
挿し、該コントロールスリーブの軸方向位置を変
化させて上記プランジヤの有効ストロークを調整
することによつて燃料噴射量を制御するようにし
た燃料噴射ポンプを備えたデイーゼルエンジンの
燃料噴射制御装置であつて、上記カツトオフポー
トの近傍に、該カツトオフポートの有効通路面積
を可変とする通路面積可変制御機構と、上記カツ
トオフポートの有効通路面積を燃料噴射量の増加
に従つて増大させる如く上記通路面積可変制御機
構の作動を制御する制御機構とを設けたことを特
徴とするデイーゼルエンジンの燃料噴射制御装置
。 By reciprocating the plunger within the barrel, the fuel in the fuel pressurizing chamber formed on the top surface of the plunger can be pressurized and fed, while the outside of the plunger is communicated with the top surface of the plunger. In addition, a control sleeve is slidably inserted so as to open and close a cut-off port opening on the side circumferential surface, and the effective stroke of the plunger is adjusted by changing the axial position of the control sleeve. A fuel injection control device for a diesel engine equipped with a fuel injection pump configured to control a fuel injection amount, the passage area variable control device being provided near the cut-off port to vary the effective passage area of the cut-off port. and a control mechanism that controls the operation of the passage area variable control mechanism so as to increase the effective passage area of the cut-off port as the fuel injection amount increases. Control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986128329U JPH0634604Y2 (en) | 1986-08-22 | 1986-08-22 | Fuel injection control device for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986128329U JPH0634604Y2 (en) | 1986-08-22 | 1986-08-22 | Fuel injection control device for diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6334355U true JPS6334355U (en) | 1988-03-05 |
| JPH0634604Y2 JPH0634604Y2 (en) | 1994-09-07 |
Family
ID=31023900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986128329U Expired - Lifetime JPH0634604Y2 (en) | 1986-08-22 | 1986-08-22 | Fuel injection control device for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634604Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS597026A (en) * | 1982-07-06 | 1984-01-14 | Toyo Kikai Kinzoku Kk | Shut-off apparatus of injection nozzle of injection molding machine |
-
1986
- 1986-08-22 JP JP1986128329U patent/JPH0634604Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS597026A (en) * | 1982-07-06 | 1984-01-14 | Toyo Kikai Kinzoku Kk | Shut-off apparatus of injection nozzle of injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0634604Y2 (en) | 1994-09-07 |