JPS6234131U - - Google Patents
Info
- Publication number
- JPS6234131U JPS6234131U JP12459285U JP12459285U JPS6234131U JP S6234131 U JPS6234131 U JP S6234131U JP 12459285 U JP12459285 U JP 12459285U JP 12459285 U JP12459285 U JP 12459285U JP S6234131 U JPS6234131 U JP S6234131U
- Authority
- JP
- Japan
- Prior art keywords
- injection timing
- pump
- bypass passage
- bellows
- pressure
- 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 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 1
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
Description
第１図はこの考案の全体構成図。第２図はこの
考案の作動を説明するグラフ。
１……燃料噴射ポンプ、３……駆動軸、４……
ベーンポンプ、１２……プランジヤ、２７……燃
料噴射弁、３１……タイマピストン、３５……高
圧室、３７……低圧室、４２，４３……バイパス
通路、４６……プツシユロツド、５１……シール
材、５４……ベローズ、５５……封入室、６２…
…ベローズカバー、７８……切替弁、８１……定
圧弁、８２……定差圧弁、１００……制御回路。
Figure 1 shows the overall configuration of this invention. Figure 2 is a graph explaining the operation of this invention. 1... Fuel injection pump, 3... Drive shaft, 4...
Vane pump, 12... Plunger, 27... Fuel injection valve, 31... Timer piston, 35... High pressure chamber, 37... Low pressure chamber, 42, 43... Bypass passage, 46... Push rod, 51... Seal material , 54... bellows, 55... inclusion chamber, 62...
... bellows cover, 78 ... switching valve, 81 ... constant pressure valve, 82 ... constant differential pressure valve, 100 ... control circuit.
Claims (1)
御用のピストン部材の片面に形成されるポンプ室
をバイパス通路を介してポンプ低圧側に接続し、
該バイパス通路に配置されるバイパス流量制御弁
をプツシユロツドを介してベローズに連結し、ベ
ローズにエンジンの負荷に応じて一定圧又は大気
圧を減圧した圧力が選択的に印加され、高地走行
における軽負荷運転時に噴射時期を進角補償させ
るデイーゼル機関の噴射時期高度補償装置。 A pump chamber formed on one side of a piston member for controlling injection timing of a fuel injection pump of a diesel engine is connected to the low pressure side of the pump via a bypass passage,
A bypass flow control valve disposed in the bypass passage is connected to a bellows via a push rod, and a constant pressure or a pressure reduced from atmospheric pressure is selectively applied to the bellows depending on the engine load, so that a light load can be applied when driving at high altitudes. An injection timing altitude compensation device for diesel engines that advances the injection timing during operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12459285U JPS6234131U (en) | 1985-08-15 | 1985-08-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12459285U JPS6234131U (en) | 1985-08-15 | 1985-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6234131U true JPS6234131U (en) | 1987-02-28 |
Family
ID=31016749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12459285U Pending JPS6234131U (en) | 1985-08-15 | 1985-08-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6234131U (en) |
-
1985
- 1985-08-15 JP JP12459285U patent/JPS6234131U/ja active Pending
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