JPH01127968U - - Google Patents
Info
- Publication number
- JPH01127968U JPH01127968U JP2232488U JP2232488U JPH01127968U JP H01127968 U JPH01127968 U JP H01127968U JP 2232488 U JP2232488 U JP 2232488U JP 2232488 U JP2232488 U JP 2232488U JP H01127968 U JPH01127968 U JP H01127968U
- Authority
- JP
- Japan
- Prior art keywords
- injection pump
- fuel
- passage
- diesel engine
- fuel passage
- 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 10
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は第１実施例の要部拡大断面図、第２図
は第２実施例の要部拡大断面図、第３図ａは高噴
射量時の第５図Ａ部拡大断面図、第３図ｂは低噴
射量時の第５図Ａ部拡大断面図、第４図は本実施
例の噴射量―時間特性線図、第５図は従来例の分
配型燃料噴射ポンプの断面図を示す。
１……分配型燃料噴射ポンプ、２……プランジ
ヤ頭部、３……プランジヤ内燃料通路、４……ス
ピルポート、５……第１バイパス路、７……第２
バイパス路、１０……プランジヤバレル、１１…
…プランジヤ、１８……スピルリング、２０……
噴射ポンプ室、Ｆ……燃料。
FIG. 1 is an enlarged sectional view of the main part of the first embodiment, FIG. 2 is an enlarged sectional view of the main part of the second embodiment, FIG. 3a is an enlarged sectional view of part A in FIG. 3b is an enlarged sectional view of part A in FIG. 5 at a low injection amount, FIG. 4 is an injection amount-time characteristic diagram of this embodiment, and FIG. 5 is a sectional view of a conventional distribution type fuel injection pump. show. DESCRIPTION OF SYMBOLS 1... Distribution type fuel injection pump, 2... Plunger head, 3... Fuel passage in plunger, 4... Spill port, 5... First bypass path, 7... Second
Bypass path, 10... Plunger barrel, 11...
... Plungeer, 18... Spilling, 20...
Injection pump chamber, F...Fuel.
Claims (1)
分配を行なう１本又は１対のプランジヤと、前記
プランジヤに摺動可能に外嵌されたスピルリング
と、前記プランジヤ軸内に穿設された燃料通路と
、該燃料通路と噴射ポンプ室とを連通するスピル
ポートとを有するデイーゼルエンジンの分配型燃
料噴射ポンプにおいて、前記スピルポートよりは
上流側でしかも、少くともエンジンの高負荷時の
噴射開始時期よりは後で開通する位置に、前記燃
料通路と前記噴射ポンプ室とを連通可能とする前
記スピルポートよりは小径のバイパス路を穿設し
たことを特徴とするデイーゼルエンジン燃料噴射
ポンプの噴射率制御機構。 Driven by the engine, sucks fuel, pumps it,
one or a pair of plungers for performing distribution, a spill ring slidably fitted on the plunger, a fuel passage bored in the plunger shaft, and communication between the fuel passage and the injection pump chamber. In a distribution type fuel injection pump for a diesel engine having a spill port, the fuel passage and An injection rate control mechanism for a diesel engine fuel injection pump, characterized in that a bypass passage having a smaller diameter than the spill port is provided to communicate with the injection pump chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2232488U JPH01127968U (en) | 1988-02-24 | 1988-02-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2232488U JPH01127968U (en) | 1988-02-24 | 1988-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01127968U true JPH01127968U (en) | 1989-08-31 |
Family
ID=31240335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2232488U Pending JPH01127968U (en) | 1988-02-24 | 1988-02-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01127968U (en) |
-
1988
- 1988-02-24 JP JP2232488U patent/JPH01127968U/ja active Pending
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