JPH0283372U - - Google Patents
Info
- Publication number
- JPH0283372U JPH0283372U JP16123688U JP16123688U JPH0283372U JP H0283372 U JPH0283372 U JP H0283372U JP 16123688 U JP16123688 U JP 16123688U JP 16123688 U JP16123688 U JP 16123688U JP H0283372 U JPH0283372 U JP H0283372U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- outer peripheral
- peripheral surface
- oil
- pressure chamber
- 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 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 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図はクラン
ク角度と噴射圧及び針弁リフトとの関係を示す比
較特性図、第４図は従来例の断面図である。
また、図面中２はプランジヤ、２ａは外周面、
２ｂは加圧面、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、１２は油孔で
ある。
Fig. 1 is a sectional view showing one embodiment of the present invention;
3 is a diagram showing the principle of operation, FIG. 3 is a comparative characteristic diagram showing the relationship between crank angle, injection pressure and needle valve lift, and FIG. 4 is a sectional view of a conventional example. In addition, 2 in the drawing is a plunger, 2a is an outer peripheral surface,
2b is a pressure surface, 3 is a plunger barrel, 6 is a control groove, 7 is an oil intake/discharge hole, and 12 is an oil hole.
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、一端に上記圧力室へ臨む加圧面を有
しかつ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噴射量調整用の
コントロ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、上記加圧面と、該加
圧面とコントロールグループとの間のプランジヤ
の外周面とに両端を開口した、上記吸排油孔より
小径の油孔をプランジヤに形成したデイーゼル機
関の燃料噴射ポンプ。 a plunger barrel having a pressure chamber, an oil suction/drainage hole formed in the plunger barrel that can communicate with the pressure chamber, and a pressurizing surface facing the pressure chamber at one end, which reciprocates within the plunger barrel to allow the suction/drainage to occur. A fuel injection pump for a diesel engine having a plunger for opening and closing an oil hole, and a control groove for adjusting an injection amount formed circumferentially on an outer peripheral surface of the plunger, the pressure surface and the control groove for controlling the injection amount. A fuel injection pump for a diesel engine, in which an oil hole with a smaller diameter than the oil intake/discharge hole is formed in the plunger and has both ends open on the outer peripheral surface of the plunger between the group and the outer peripheral surface of the plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16123688U JPH0283372U (en) | 1988-12-14 | 1988-12-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16123688U JPH0283372U (en) | 1988-12-14 | 1988-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0283372U true JPH0283372U (en) | 1990-06-27 |
Family
ID=31443993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16123688U Pending JPH0283372U (en) | 1988-12-14 | 1988-12-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0283372U (en) |
-
1988
- 1988-12-14 JP JP16123688U patent/JPH0283372U/ja active Pending