JPH0283373U - - Google Patents
Info
- Publication number
- JPH0283373U JPH0283373U JP16249588U JP16249588U JPH0283373U JP H0283373 U JPH0283373 U JP H0283373U JP 16249588 U JP16249588 U JP 16249588U JP 16249588 U JP16249588 U JP 16249588U JP H0283373 U JPH0283373 U JP H0283373U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- oil
- pressure chamber
- fuel injection
- injection pump
- 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 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims 4
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図はその作用状態を示す原理図、第３図は噴射モ
ードの比較特性図、第４図Ａは突部を有しない場
合のリード位置に対する実噴射量の変化を示す説
明図、第４図Ｂは突部を有する本考案のリード位
置に対する実噴射量の変化を示す説明図、第５図
は本考案の別の実施例を示すプランジヤの要部正
面図、第６図は従来例の断面図である。
また、図面中、２はプランジヤ、３はプランジ
ヤバレル、６はリード、７は吸排油孔、１０は圧
力室、１２は油孔、１３は突部である。
Fig. 1 is a sectional view showing one embodiment of the present invention;
Figure 3 is a diagram showing the principle of operation, Figure 3 is a comparative characteristic diagram of injection modes, Figure 4A is an explanatory diagram showing changes in actual injection amount with respect to the lead position when there is no protrusion, Figure 4B is an explanatory diagram showing the change in actual injection amount with respect to the lead position of the present invention having a protrusion, FIG. 5 is a front view of the main part of a plunger showing another embodiment of the present invention, and FIG. 6 is a sectional view of the conventional example. It is. Further, in the drawings, 2 is a plunger, 3 is a plunger barrel, 6 is a lead, 7 is an oil intake/discharge hole, 10 is a pressure chamber, 12 is an oil hole, and 13 is a protrusion.
Claims (1)
ジヤバレルに形成されて上記圧力室に連通し得る
吸排油孔と、プランジヤバレル内を往復動して上
記吸排油孔を開閉するプランジヤと、該プランジ
ヤの外周面に形成された噴射量調整用のリードと
を有するデイーゼル機関の燃料噴射ポンプにおい
て、上記プランジヤに形成されて上記圧力室に臨
むプランジヤの端面及び該端面と上記リードとの
間のプランジヤの外周面に両端が開口したリーク
用の油孔と、該油孔に対応するプランジヤの外周
面に一体的に形成されて上記油孔からの燃料リー
ク量に対応して上記吸排油孔を閉塞し得る突部と
を設けたことを特徴とするデイーゼル機関の燃料
噴射ポンプ。 A plunger barrel having a pressure chamber, an oil suction and discharge hole formed in the plunger barrel and communicating with the pressure chamber, a plunger that reciprocates within the plunger barrel to open and close the oil suction and discharge hole, and an outer peripheral surface of the plunger. In the fuel injection pump for a diesel engine, the fuel injection pump has an injection amount adjustment lead formed in the plunger, and an end face of the plunger facing the pressure chamber, and an outer circumferential face of the plunger between the end face and the lead. A leakage oil hole that is open at both ends, and a protrusion that is integrally formed on the outer peripheral surface of the plunger corresponding to the oil hole and that can close the oil intake and discharge hole in accordance with the amount of fuel leaking from the oil hole. A fuel injection pump for a diesel engine, characterized in that it is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16249588U JPH0283373U (en) | 1988-12-16 | 1988-12-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16249588U JPH0283373U (en) | 1988-12-16 | 1988-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0283373U true JPH0283373U (en) | 1990-06-27 |
Family
ID=31446373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16249588U Pending JPH0283373U (en) | 1988-12-16 | 1988-12-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0283373U (en) |
-
1988
- 1988-12-16 JP JP16249588U patent/JPH0283373U/ja active Pending
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