JPH0283370U - - Google Patents
Info
- Publication number
- JPH0283370U JPH0283370U JP16249688U JP16249688U JPH0283370U JP H0283370 U JPH0283370 U JP H0283370U JP 16249688 U JP16249688 U JP 16249688U JP 16249688 U JP16249688 U JP 16249688U JP H0283370 U JPH0283370 U JP H0283370U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- pressure chamber
- fuel injection
- diesel engine
- discharge 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
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図Ａは本考案の一実施例を示す断面図、第
１図Ｂはその要部拡大斜視図、第２図は同じく作
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図は本考案の別の実施例を示す要部
斜視図、第５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はコントロールグルーブ、７は吸排油
孔、１０は圧力室、１２は切欠き通路である。
Fig. 1A is a cross-sectional view showing one embodiment of the present invention, Fig. 1B is an enlarged perspective view of its main parts, Fig. 2 is a principle diagram showing the same operating state, and Fig. 3 is a comparative characteristic diagram of injection modes. , FIG. 4 is a perspective view of a main part showing another embodiment of the present invention, and FIG. 5 is a sectional view of a conventional example. Further, in the drawings, 2 is a plunger, 3 is a plunger barrel, 6 is a control groove, 7 is an oil intake/discharge hole, 10 is a pressure chamber, and 12 is a notch passage.
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
ヤの外周面に周方向に沿つて形成されたコントル
ールグルーブとを有するデイーゼル機関の燃料噴
射ポンプにおいて、上記コントロールグルーブに
対応する圧力室側のプランジヤの端部に、端面と
外周面とにそれぞれ開口した、通路断面積が上記
吸排油孔より小さいリーク用の切欠き通路を形成
し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 a diesel engine fuel injection pump having a control groove formed along the circumferential direction, a passageway is provided at an end of the plunger on the pressure chamber side corresponding to the control groove, the passage opening in the end surface and the outer circumferential surface, respectively. A fuel injection pump for a diesel engine, characterized in that a cutout passage for leakage is formed with a cross-sectional area smaller than the oil intake/drainage hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16249688U JPH0283370U (en) | 1988-12-16 | 1988-12-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16249688U JPH0283370U (en) | 1988-12-16 | 1988-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0283370U true JPH0283370U (en) | 1990-06-27 |
Family
ID=31446375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16249688U Pending JPH0283370U (en) | 1988-12-16 | 1988-12-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0283370U (en) |
-
1988
- 1988-12-16 JP JP16249688U patent/JPH0283370U/ja active Pending