JPS60118371U - fuel injection pump - Google Patents
fuel injection pumpInfo
- Publication number
- JPS60118371U JPS60118371U JP535484U JP535484U JPS60118371U JP S60118371 U JPS60118371 U JP S60118371U JP 535484 U JP535484 U JP 535484U JP 535484 U JP535484 U JP 535484U JP S60118371 U JPS60118371 U JP S60118371U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- injection pump
- plunger
- opening
- hole
- 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
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はスピル孔なしの場合の燃料噴射ポンプを示す断
面図、第２図は噴射遅れ特性を示す線図、第３図はスピ
ル孔ありの場合の燃料噴射ポンプを示す断面図、第４図
は第３図のプランジャバレルの展開図、第５図ａは噴射
遅れ特性を示す線図、第５図すは低速回転基準にタイミ
ングセット変更後の噴射遅れ特性を示す線図、第６図は
噴射量特性を示す線図、第７図は本考案による１実施例
の燃料噴射ポンプを示す断面図、第８図ａはプランジャ
バレルを示す展開図、第８図すはプランジャを示す展開
図、第９図は排油孔の開口面積を示す線図、第１０図は
プランジャ室圧力の降下特性を示す線図、第１１図はア
フタフ［１−全特性を示す線図、第１２図ａは同一有効
ストロークの場合の噴射量特性を示す線図、第１２図す
は有効ストロークを増加した場合の噴射量特性を示す線
図、第１３図は噴射遅れの特性を示す線区である。
３・・・プランジャリード、５・・・給油孔、６・・・
排油孔、１１・・・スピル孔。
Ｗ’ＪＡＩ−「−−Fig. 1 is a sectional view showing the fuel injection pump without spill holes, Fig. 2 is a line diagram showing injection delay characteristics, Fig. 3 is a sectional view showing the fuel injection pump with spill holes, and Fig. 4 is a sectional view showing the fuel injection pump without spill holes. The figures are a developed view of the plunger barrel in Fig. 3, Fig. 5a is a diagram showing the injection delay characteristics, Fig. 5 is a diagram showing the injection delay characteristics after changing the timing set to a low speed rotation standard, and Fig. 6 7 is a sectional view showing a fuel injection pump according to an embodiment of the present invention, FIG. 8 a is a developed view showing the plunger barrel, and FIG. 8 is a developed view showing the plunger. , Fig. 9 is a diagram showing the opening area of the oil drain hole, Fig. 10 is a diagram showing the drop characteristics of the plunger chamber pressure, Fig. 11 is a diagram showing the after-tuff [1-total characteristics, Fig. 12 a 12 is a diagram showing the injection amount characteristics when the effective stroke is the same, FIG. 12 is a diagram showing the injection amount characteristics when the effective stroke is increased, and FIG. 13 is a line section showing the characteristics of injection delay. 3... Plunger lead, 5... Oil supply hole, 6...
Oil drain hole, 11... Spill hole. W'JAI-"--
Claims (1)
ャーク式燃料噴射ポンプにおいて、プランジャバレルの
排油孔のプランジャ側開口部の形状とじて、円形開口の
下部のプランジャリードにかかる部分を同プランジャリ
ードとほぼ同一の傾きをもつ直線状に形成して上記円形
開口よりも開口面積を大きくしたことを特徴とする燃料
噴射ポンプ。 −ｍ−−−In a jerk-type fuel injection pump that has a spill hole at the top of the oil supply hole in the plunger barrel, the shape of the opening on the plunger side of the oil drain hole in the plunger barrel is such that the lower part of the circular opening that spans the plunger lead is the plunger lead. A fuel injection pump characterized in that the opening area is larger than that of the circular opening by forming the opening into a straight line having substantially the same slope. -m---
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP535484U JPS60118371U (en) | 1984-01-20 | 1984-01-20 | fuel injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP535484U JPS60118371U (en) | 1984-01-20 | 1984-01-20 | fuel injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60118371U true JPS60118371U (en) | 1985-08-10 |
Family
ID=30481783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP535484U Pending JPS60118371U (en) | 1984-01-20 | 1984-01-20 | fuel injection pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60118371U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5820960A (en) * | 1981-07-31 | 1983-02-07 | Komatsu Ltd | Fuel injection device |
-
1984
- 1984-01-20 JP JP535484U patent/JPS60118371U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5820960A (en) * | 1981-07-31 | 1983-02-07 | Komatsu Ltd | Fuel injection device |
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