JPS6212743U - - Google Patents
Info
- Publication number
- JPS6212743U JPS6212743U JP10405885U JP10405885U JPS6212743U JP S6212743 U JPS6212743 U JP S6212743U JP 10405885 U JP10405885 U JP 10405885U JP 10405885 U JP10405885 U JP 10405885U JP S6212743 U JPS6212743 U JP S6212743U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- pump
- chamber
- pump chamber
- passage hole
- 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 18
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の実施例に適用されるガバナス
リーブとガバナシヤフトを示す断面図、第２図は
本考案の実施例を適用した燃料噴射ポンプを示す
断面図、第３図は本考案の第１実施例の特性を示
すグラフ、第４図は第２実施例の特性を示すグラ
フ、第５図は第３実施例の特性を示すグラフ、第
６図は第４実施例の特性を示すグラフである。
１３…ポンプ室、１４…プランジヤ、１７…変
圧室、２１…カム、２２…ローラ、４１…ガバナ
スリーブ、４２…ガバナシヤフト、５１…第１の
燃料通過孔、５２…第２の燃料通過孔、５３…燃
料還流通路、５５…第１の連通孔、５６…第２の
連通孔、６１…タイマピストン。
Fig. 1 is a sectional view showing a governor sleeve and governor shaft applied to an embodiment of the present invention, Fig. 2 is a sectional view showing a fuel injection pump to which an embodiment of the invention is applied, and Fig. 3 is a sectional view showing a governor sleeve and a governor shaft applied to an embodiment of the present invention. FIG. 4 is a graph showing the characteristics of the second embodiment. FIG. 5 is a graph showing the characteristics of the third embodiment. FIG. 6 is a graph showing the characteristics of the fourth embodiment. It is. 13... Pump chamber, 14... Plunger, 17... Transformer chamber, 21... Cam, 22... Roller, 41... Governor sleeve, 42... Governor shaft, 51... First fuel passage hole, 52... Second fuel passage hole, 53 ...fuel recirculation passage, 55...first communication hole, 56...second communication hole, 61...timer piston.
Claims (1)
ることにより往復動して変圧室の容積を拡大縮小
させ、ポンプ室内の燃料を変圧室に導くとともに
この変圧室内の燃料を外部に吐出する燃料噴射ポ
ンプであつて、上記ローラに連結され、上記ポン
プ室内の圧力に応じて変位して上記ローラの位置
を変化させるタイマピストンと、上記ポンプ室内
とこのポンプ室の外部とを連通可能な燃料還流通
路が形成されたガバナシヤフトと、このガバナシ
ヤフトに摺動自在に嵌合され、上記燃料還流通路
とポンプ室内とを連通させるための第１の燃料通
過孔が穿設されたガバナスリーブとを備え、エン
ジン負荷が小さくなると上記ガバナスリーブが変
位して、上記第１の燃料通過孔が燃料還流通路に
連通し、上記ポンプ室内の燃料がこれら燃料通過
孔および燃料還流通路を介してポンプ室から解放
され、このポンプ室の圧力が低下して上記タイマ
ピストンが変位する燃料噴射ポンプの噴射時期制
御装置において、上記第１の燃料通過孔とは異な
る位置に第２の燃料通過孔を形成したことを特徴
とする燃料噴射ポンプの噴射時期制御装置。 A fuel injection pump in which a cam provided on the plunger engages with a roller and reciprocates to expand and contract the volume of the variable pressure chamber, guiding the fuel in the pump chamber to the variable pressure chamber and discharging the fuel in the variable pressure chamber to the outside. A timer piston connected to the roller and displaceable according to the pressure in the pump chamber to change the position of the roller, and a fuel return passage capable of communicating the pump chamber with the outside of the pump chamber. A governor shaft is formed, and a governor sleeve is slidably fitted to the governor shaft and has a first fuel passage hole for communicating the fuel recirculation passage with the pump chamber. When the size becomes smaller, the governor sleeve is displaced, the first fuel passage hole communicates with the fuel return passage, and the fuel in the pump chamber is released from the pump chamber through the fuel passage hole and the fuel return passage, and the pump An injection timing control device for a fuel injection pump in which the timer piston is displaced as the pressure in the chamber decreases, characterized in that a second fuel passage hole is formed at a position different from the first fuel passage hole. Injection pump injection timing control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10405885U JPS6212743U (en) | 1985-07-10 | 1985-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10405885U JPS6212743U (en) | 1985-07-10 | 1985-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6212743U true JPS6212743U (en) | 1987-01-26 |
Family
ID=30977199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10405885U Pending JPS6212743U (en) | 1985-07-10 | 1985-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6212743U (en) |
-
1985
- 1985-07-10 JP JP10405885U patent/JPS6212743U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6212743U (en) | ||
| JPS6321763U (en) | ||
| JPS61128380U (en) | ||
| JPH0330569U (en) | ||
| JPS6319064U (en) | ||
| JPS61192564U (en) | ||
| JPH057499Y2 (en) | ||
| JPS615366U (en) | fuel injection pump | |
| JPS6247767U (en) | ||
| JPS6272470U (en) | ||
| JPS586960U (en) | fuel injection pump | |
| JPS634343U (en) | ||
| JPH0347458U (en) | ||
| JPS61144263U (en) | ||
| JPS619530U (en) | Injection timing control device for distributed fuel injection pump | |
| JPS62116136U (en) | ||
| JPS61192534U (en) | ||
| JPS6163474U (en) | ||
| JPS61149769U (en) | ||
| JPH0228564U (en) | ||
| JPS61175564U (en) | ||
| JPS6212742U (en) | ||
| JPS6383458U (en) | ||
| JPS6271371U (en) | ||
| JPS62128160U (en) |