JPS62193173U - - Google Patents
Info
- Publication number
- JPS62193173U JPS62193173U JP8081186U JP8081186U JPS62193173U JP S62193173 U JPS62193173 U JP S62193173U JP 8081186 U JP8081186 U JP 8081186U JP 8081186 U JP8081186 U JP 8081186U JP S62193173 U JPS62193173 U JP S62193173U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- rotor
- pump chamber
- inner cam
- cam
- 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 2
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
Description
第１図〜第５図は本考案の実施例に関するもの
で、第１図は本実施例の構成を示す縦断面図、第
２図は第１図の―断面図、第３図は第１図に
示すプランジヤの拡大斜視図、第４図及び第５図
は本実施例の変形例に関するもので、第４図は本
変形例のプランジヤを示す拡大断面図、第５図は
本変形例を説明するための断面図、第６図は従来
の技術を説明するための断面図である。
４……インナカム、５……カム面、６……駆動
軸、７……ロータ、９……プランジヤ、９ａ……
突出部、１０……ローラシユー、１１……ローラ
、３０……プランジヤ通路。
Figures 1 to 5 relate to an embodiment of the present invention. Figure 1 is a longitudinal sectional view showing the configuration of this embodiment, Figure 2 is a cross-sectional view of Figure 1, and Figure 3 is a cross-sectional view of Figure 1. The enlarged perspective view, FIGS. 4 and 5, of the plunger shown in the figure relate to a modification of this embodiment. FIG. 4 is an enlarged sectional view showing the plunger of this modification, and FIG. 5 shows this modification. FIG. 6 is a cross-sectional view for explaining the conventional technique. 4... Inner cam, 5... Cam surface, 6... Drive shaft, 7... Rotor, 9... Plunger, 9a...
Projection, 10...roller show, 11...roller, 30...plunger passage.
Claims (1)
、 このインナカムの内周側に配設されて、内燃機
関により駆動される駆動軸と一体に回転するロー
タと、 このロータの略中心部に配設されるポンプ室と
、 前記ロータの径方向に形成され、一端が前記ポ
ンプ室に開口し、他端が前記ロータの外周面に開
口するとともに同一平面上に少なくとも３つ以上
配設されるプランジヤ通路と、 この各プランジヤ通路に摺動自在に嵌挿される
プランジヤと、 前記プランジヤ通路の他端側において設けられ
るローラ部とを備え、前記ロータの回転にもとづ
き前記ローラ部が前記インナカムのカム面に摺動
して前記各プランジヤを同様に往復動するインナ
カム式分配型燃料噴射ポンプにおいて、 前記プランジヤのポンプ室側の端部には、先端
にいくにつれて細くなる突出部が設けられており
、この突出部は前記プランジヤの最高リフト位置
において前記ポンプ室内に突出することを特徴と
するインナカム式分配型燃料噴射ポンプ。[Scope of Claim for Utility Model Registration] An inner cam having a cam surface formed on its inner circumferential surface; a rotor disposed on the inner circumferential side of the inner cam and rotating integrally with a drive shaft driven by an internal combustion engine; a pump chamber disposed approximately at the center of the rotor; and a pump chamber formed in the radial direction of the rotor, with one end opening into the pump chamber and the other end opening into the outer circumferential surface of the rotor, and having at least one end on the same plane. The plunger passage includes three or more plunger passages, a plunger slidably inserted into each of the plunger passages, and a roller part provided at the other end of the plunger passage, and the roller part is configured to rotate based on the rotation of the rotor. In the inner cam type distribution type fuel injection pump, the plunger slides on the cam surface of the inner cam and similarly reciprocates each of the plungers, the plunger having a protrusion that becomes thinner toward the tip at the end on the pump chamber side. An inner cam type distribution type fuel injection pump, characterized in that the protruding portion protrudes into the pump chamber at the highest lift position of the plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8081186U JPS62193173U (en) | 1986-05-28 | 1986-05-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8081186U JPS62193173U (en) | 1986-05-28 | 1986-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62193173U true JPS62193173U (en) | 1987-12-08 |
Family
ID=30931961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8081186U Pending JPS62193173U (en) | 1986-05-28 | 1986-05-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62193173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0732496A1 (en) * | 1995-03-13 | 1996-09-18 | Zexel Corporation | Inner cam type injection pump |
-
1986
- 1986-05-28 JP JP8081186U patent/JPS62193173U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0732496A1 (en) * | 1995-03-13 | 1996-09-18 | Zexel Corporation | Inner cam type injection pump |
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