JPS61159662U - - Google Patents
Info
- Publication number
- JPS61159662U JPS61159662U JP4162485U JP4162485U JPS61159662U JP S61159662 U JPS61159662 U JP S61159662U JP 4162485 U JP4162485 U JP 4162485U JP 4162485 U JP4162485 U JP 4162485U JP S61159662 U JPS61159662 U JP S61159662U
- Authority
- JP
- Japan
- Prior art keywords
- barrel
- plunger
- fuel
- recess
- movable
- 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 8
- 238000002347 injection Methods 0.000 claims 3
- 239000007924 injection Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の一実施例の構成を示す断面図
。第２図は本考案の一実施例の主要部の構成を示
す拡大断面図。第３図、第４図ａ〜ｅおよび第５
図は本考案の一実施例の作用説明図。
５…バレル、６…プランジヤ、７…カムデイス
ク、８…ローラホルダ、１０…移動バレル、１５
…連通孔、１７…孔、５―１および１０―１…凹
部、６―２…ピストン部。
FIG. 1 is a sectional view showing the configuration of an embodiment of the present invention. FIG. 2 is an enlarged sectional view showing the configuration of the main parts of an embodiment of the present invention. Figure 3, Figure 4 a-e and Figure 5
The figure is an explanatory diagram of the operation of one embodiment of the present invention. 5... Barrel, 6... Plunger, 7... Cam disk, 8... Roller holder, 10... Moving barrel, 15
...Communication hole, 17...hole, 5-1 and 10-1 ...recess, 6-2 ...piston part.
Claims (1)
ンジヤ頭部とバレルとの間に形成された加圧室と
を備え、プランジヤの回転往復動により加圧室へ
の燃料の吸入、吸入燃料の加圧分配および圧送を
行なう燃料噴射ポンプにおいて、 プランジヤが挿通され、プランジヤと同心状の
凹部が一端側に形成され、かつ他端側においてバ
レルと協働して受圧部が形成される移動バレルを
バレル内で軸方向に所定距離移動可能にかつ一端
がバレル外にまで突出可能にバレル内に設けると
ともに、基部側に移動バレルの凹部内径より僅か
に小さい外径を有しかつプランジヤの往復動によ
り移動バレルの凹部内に出入するピストン部分と
早くとも燃料の噴射終了時に移動バレルの受圧部
に加圧室内の燃料を導く連通路とをプランジヤに
設け、移動バレルとプランジヤとの相対往復動に
よる移動バレルの凹部内燃料圧力によりプランジ
ヤ基部方向への力を付加することを特徴とする燃
料噴射ポンプ。[Claims for Utility Model Registration] A plunger that is partially fitted in a barrel and a pressurized chamber formed between the plunger head and the barrel are provided. In a fuel injection pump that sucks fuel, distributes the sucked fuel under pressure, and pumps the fuel, a plunger is inserted through the pump, and a recess concentric with the plunger is formed at one end, and a pressure receiving part is formed in cooperation with the barrel at the other end. A movable barrel in which a movable barrel is formed is provided inside the barrel so that it can move a predetermined distance in the axial direction within the barrel, and one end can protrude to the outside of the barrel, and the base side has an outer diameter slightly smaller than the inner diameter of the recess of the movable barrel. In addition, the plunger is provided with a piston portion that moves in and out of the recess of the movable barrel by the reciprocating motion of the plunger, and a communication passage that guides the fuel in the pressurizing chamber to the pressure receiving portion of the movable barrel at the earliest when fuel injection is completed, so that the movable barrel and the plunger can be connected to each other. A fuel injection pump characterized in that a force is applied in the direction of a plunger base by fuel pressure in a recess of a moving barrel due to relative reciprocation with the barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4162485U JPS61159662U (en) | 1985-03-25 | 1985-03-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4162485U JPS61159662U (en) | 1985-03-25 | 1985-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61159662U true JPS61159662U (en) | 1986-10-03 |
Family
ID=30551625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4162485U Pending JPS61159662U (en) | 1985-03-25 | 1985-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61159662U (en) |
-
1985
- 1985-03-25 JP JP4162485U patent/JPS61159662U/ja active Pending
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