JPH0432260U - - Google Patents
Info
- Publication number
- JPH0432260U JPH0432260U JP7512090U JP7512090U JPH0432260U JP H0432260 U JPH0432260 U JP H0432260U JP 7512090 U JP7512090 U JP 7512090U JP 7512090 U JP7512090 U JP 7512090U JP H0432260 U JPH0432260 U JP H0432260U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- fuel injection
- rotation angle
- diesel engine
- medium
- 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 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の一実施例の要部側断面図、第
２図は第１図の−断面図、第３図は第１図に
示されるプランジヤの斜視図、第４図イ，ロは本
考案の一実施例におけるパイロツト噴射の負荷に
応じた噴射時期並びに噴射量を表わす線図、第５
図は従来例の要部側断面図、第６図は第５図の
−断面図、第７図は第５図に示されるプランジ
ヤの斜視図である。
１は吸入孔、２はプランジヤバレル、３はプラ
ンジヤ、８はパイロツト噴射部、９は本噴射部、
１０はリード溝、１２は切欠き部を示す。
Fig. 1 is a side sectional view of a main part of an embodiment of the present invention, Fig. 2 is a cross-sectional view taken from the side shown in Fig. 1, Fig. 3 is a perspective view of the plunger shown in Fig. 1, and Fig. 4 5 is a diagram showing the injection timing and injection amount according to the pilot injection load in one embodiment of the present invention.
6 is a side cross-sectional view of a main part of the conventional example, FIG. 6 is a cross-sectional view taken from FIG. 5, and FIG. 7 is a perspective view of the plunger shown in FIG. 5. 1 is a suction hole, 2 is a plunger barrel, 3 is a plunger, 8 is a pilot injection part, 9 is a main injection part,
Reference numeral 10 indicates a lead groove, and reference numeral 12 indicates a notch.
Claims (1)
に摺動自在に嵌挿され且つ軸線を中心とした回転
角を適宜変更可能なプランジヤを備え、該プラン
ジヤ頂部にパイロツト噴射部を形成すると共に、
プランジヤの本噴射部外周面に、該プランジヤの
回転角の変更によりエンジンの負荷状態に応じて
燃料噴射量を増減させるためのリード溝を刻設し
てなるデイーゼルエンジンの燃料噴射ポンプにお
いて、前記パイロツト噴射部の中負荷から全負荷
領域を除く少なくとも低負荷から中負荷領域に、
切欠き部を形成したことを特徴とするデイーゼル
エンジンの燃料噴射ポンプ。 A plunger is fitted into a plunger barrel having a suction hole so as to be slidable in the axial direction, and the rotation angle about the axis can be changed as appropriate, and a pilot injection part is formed at the top of the plunger, and
In the fuel injection pump for a diesel engine, a lead groove is carved on the outer peripheral surface of the main injection part of the plunger to increase or decrease the fuel injection amount according to the load condition of the engine by changing the rotation angle of the plunger. At least in the low to medium load area, excluding the medium to full load area of the injection section,
A diesel engine fuel injection pump characterized by having a notch formed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7512090U JPH0432260U (en) | 1990-07-13 | 1990-07-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7512090U JPH0432260U (en) | 1990-07-13 | 1990-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0432260U true JPH0432260U (en) | 1992-03-16 |
Family
ID=31615419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7512090U Pending JPH0432260U (en) | 1990-07-13 | 1990-07-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0432260U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4917918B1 (en) * | 1968-03-04 | 1974-05-04 |
-
1990
- 1990-07-13 JP JP7512090U patent/JPH0432260U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4917918B1 (en) * | 1968-03-04 | 1974-05-04 |
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