JPH0280769U - - Google Patents
Info
- Publication number
- JPH0280769U JPH0280769U JP16036188U JP16036188U JPH0280769U JP H0280769 U JPH0280769 U JP H0280769U JP 16036188 U JP16036188 U JP 16036188U JP 16036188 U JP16036188 U JP 16036188U JP H0280769 U JPH0280769 U JP H0280769U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- oil
- fuel injection
- diesel engine
- 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 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims 5
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の第１実施例を示す要部断面図
、第２図Ａは第２実施例を示す要部断面図、第２
図Ｂはそのプランジヤの斜視図、第３図Ａは本考
案ポンプのクランク角度と噴射圧及び噴射率との
関係を示すグラフ、第３図Ｂは従来ポンプのクラ
ンク角度と噴射圧及び噴射率との関係を示すグラ
フ、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、３はプランジヤ
バレル、７は吸排油孔、８はデリバリバルブ、１
５は油孔、１７はコントロールスリーブ、１８は
サクシヨンポート、１９は油通路、２はリークポ
ートである。
FIG. 1 is a sectional view of a main part showing a first embodiment of the present invention, FIG. 2A is a sectional view of a main part showing a second embodiment, and FIG.
Figure B is a perspective view of the plunger, Figure 3A is a graph showing the relationship between the crank angle, injection pressure, and injection rate of the pump of the present invention, and Figure 3B is a graph showing the relationship between the crank angle, injection pressure, and injection rate of the conventional pump. FIG. 4 is a cross-sectional view of a conventional example. In addition, in the drawing, 2 is a plunger, 3 is a plunger barrel, 7 is an oil intake/discharge hole, 8 is a delivery valve, 1
5 is an oil hole, 17 is a control sleeve, 18 is a suction port, 19 is an oil passage, and 2 is a leak port.
Claims (1)
ンジヤバレルと、該プランジヤバレルに形成され
た吸排油孔と、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、上記吸
排油孔よりデリバリバルブ側へオフセツトさせて
リーク用の油孔を上記プランジヤバレルに形成す
るとともに、該油孔を上記吸排油孔より小径に設
定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。 (2) プランジヤバレルと、該プランジヤバレル
内に一端部を往復動自在に嵌合させたプランジヤ
と、該プランジヤの中間部に案内されて上記プラ
ンジヤバレルに対して変位自在なコントロールス
リーブと、上記プランジヤの内部に形成されて一
端をプランジヤ一端面にかつ他端をサクシヨンポ
ートを介してプランジヤ外周面にそれぞれ開口し
た油通路とを有するデイーゼル機関の燃料噴射ポ
ンプにおいて、上記サクシヨンポートよりプラン
ジヤの他端側へオフセツトさせて上記油通路に通
じるリークポートを上記プランジヤに形成すると
ともに、該リークポートを上記サクシヨンポート
より小径に設定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。[Claims for Utility Model Registration] (1) A plunger barrel with a delivery valve provided at one end, an oil suction/drainage hole formed in the plunger barrel, and a reciprocating movement within the plunger barrel to open/close the oil suction/drainage hole. In a fuel injection pump for a diesel engine having a plunger, a leakage oil hole is formed in the plunger barrel by being offset from the oil intake/discharge hole toward the delivery valve side, and the oil hole is set to have a smaller diameter than the oil intake/discharge hole. A diesel engine fuel injection pump that is characterized by: (2) a plunger barrel, a plunger having one end fitted into the plunger barrel so as to be able to reciprocate, a control sleeve guided by an intermediate portion of the plunger and displaceable relative to the plunger barrel; In a fuel injection pump for a diesel engine, the fuel injection pump for a diesel engine has an oil passage formed inside the plunger and having one end opened to one end surface of the plunger and the other end opened to the outer circumferential surface of the plunger through a suction port. A fuel injection pump for a diesel engine, characterized in that a leak port communicating with the oil passage is formed in the plunger and is offset toward an end side, and the leak port is set to have a smaller diameter than the suction port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16036188U JPH0280769U (en) | 1988-12-12 | 1988-12-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16036188U JPH0280769U (en) | 1988-12-12 | 1988-12-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0280769U true JPH0280769U (en) | 1990-06-21 |
Family
ID=31442362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16036188U Pending JPH0280769U (en) | 1988-12-12 | 1988-12-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0280769U (en) |
-
1988
- 1988-12-12 JP JP16036188U patent/JPH0280769U/ja active Pending
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