JPS6383458U - - Google Patents
Info
- Publication number
- JPS6383458U JPS6383458U JP17956386U JP17956386U JPS6383458U JP S6383458 U JPS6383458 U JP S6383458U JP 17956386 U JP17956386 U JP 17956386U JP 17956386 U JP17956386 U JP 17956386U JP S6383458 U JPS6383458 U JP S6383458U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- hole
- cut
- groove
- inclined groove
- 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
- 239000000446 fuel Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示す断面図、第２
図ａ乃至ｄはアイドリング時における本考案の要
部の動作状態を順に示す断面図、第３図は本考案
に用いたプランジヤの有効ストロークと回転角と
の関係を示す特性図、第４図は本考案のアイドリ
ング時における噴射波形図である。
８……プランジヤ、１７……燃料吸排孔、１９
……傾斜溝、２０……切欠溝、２１……制御スリ
ーブ、２２……カツトオフ孔、３３……加圧室。
Fig. 1 is a sectional view showing one embodiment of the present invention;
Figures a to d are sectional views sequentially showing the operating states of the main parts of the present invention during idling, Figure 3 is a characteristic diagram showing the relationship between the effective stroke and rotation angle of the plunger used in the present invention, and Figure 4 is a FIG. 3 is an injection waveform diagram during idling of the present invention. 8...Plunger, 17...Fuel intake and exhaust hole, 19
... Inclined groove, 20 ... Notch groove, 21 ... Control sleeve, 22 ... Cut-off hole, 33 ... Pressure chamber.
Claims (1)
るプランジヤに制御スリーブを摺動可能に装着し
、上記プランジヤの周面に加圧室に連通する燃料
吸排孔と該孔に連通する傾斜溝を形成し、前記制
御スリーブに上記傾斜溝と導通可能なカツトオフ
孔を形成した燃料噴射ポンプにおいて、前記プラ
ンジヤ周面の上記傾斜溝より頭部側位置に、燃料
吸排孔に連通する切欠溝を形成し、該溝を低負荷
低速域でのプランジヤの作動時に前記カツトオフ
孔と連通させて、加圧室の圧力を抵下させるよう
にしたことを特徴とする燃料噴射ポンプ。 A control sleeve is slidably attached to a plunger that rotates depending on the load and rotational state of the engine, and a fuel intake/discharge hole communicating with a pressurizing chamber and an inclined groove communicating with the hole are formed on the circumferential surface of the plunger. , a fuel injection pump in which the control sleeve has a cut-off hole that can communicate with the inclined groove, wherein a cut-out groove that communicates with the fuel intake/discharge hole is formed at a position closer to the head than the inclined groove on the circumferential surface of the plunger; A fuel injection pump characterized in that the groove is communicated with the cut-off hole when the plunger operates in a low load and low speed range to reduce the pressure in the pressurizing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17956386U JPS6383458U (en) | 1986-11-21 | 1986-11-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17956386U JPS6383458U (en) | 1986-11-21 | 1986-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6383458U true JPS6383458U (en) | 1988-06-01 |
Family
ID=31122733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17956386U Pending JPS6383458U (en) | 1986-11-21 | 1986-11-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6383458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0512458A1 (en) * | 1991-05-08 | 1992-11-11 | Zexel Corporation | Fuel injection pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5843667U (en) * | 1981-09-18 | 1983-03-24 | 三洋電機株式会社 | Tape loading device for magnetic recording and reproducing equipment |
| JPS61123756A (en) * | 1984-11-16 | 1986-06-11 | Diesel Kiki Co Ltd | Fuel injection pump |
| JPS6137462B2 (en) * | 1985-03-14 | 1986-08-23 | Fuji Electric Co Ltd |
-
1986
- 1986-11-21 JP JP17956386U patent/JPS6383458U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5843667U (en) * | 1981-09-18 | 1983-03-24 | 三洋電機株式会社 | Tape loading device for magnetic recording and reproducing equipment |
| JPS61123756A (en) * | 1984-11-16 | 1986-06-11 | Diesel Kiki Co Ltd | Fuel injection pump |
| JPS6137462B2 (en) * | 1985-03-14 | 1986-08-23 | Fuji Electric Co Ltd |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0512458A1 (en) * | 1991-05-08 | 1992-11-11 | Zexel Corporation | Fuel injection pump |
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