ELECTROMAGNETIC REGULATION VALVE
To provide an electromagnetic regulation valve suppressed in increase of current volume.SOLUTION: An electromagnetic regulation valve has a suction valve, a main spring applying downward energization force to the suction valve, an armature, a coil applying upward electromagnetic force to the armatur...
Gespeichert in:
Hauptverfasser: | , |
---|---|
Format: | Patent |
Sprache: | eng ; jpn |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | To provide an electromagnetic regulation valve suppressed in increase of current volume.SOLUTION: An electromagnetic regulation valve has a suction valve, a main spring applying downward energization force to the suction valve, an armature, a coil applying upward electromagnetic force to the armature, a connection portion for connecting the suction valve and the armature, and a fuel storage chamber partially defined by the connection portion. When a volume of a plunger chamber is reduced in a sealed state in which the fuel is sealed in the fuel storage chamber, downward drag of fuel in the fuel storage chamber is applied to the suction valve through the connection portion. In a case when electromagnetic force is not applied to the armature, a tip of the suction valve and a wall surface of the plunger chamber are separated, and the plunger chamber and a fuel supply passage are communicated by the downward drag and energization force, and in a case when electromagnetic force is applied to the armature, the sealed state of the fuel storage chamber is released by upward movement of the armature, and the tip of the suction valve and the wall surface of the plunger chamber are brought into contact with each other so that the plunger chamber and the fuel supply passage are not communicated.SELECTED DRAWING: Figure 4
【課題】電流量の増大が抑制された電磁調量弁を提供する。【解決手段】吸入弁と、下向きの付勢力を吸入弁に付与するメインスプリングと、アーマチャと、アーマチャに上向きの電磁力を付与するコイルと、吸入弁とアーマチャとを連結する連結部と、連結部によって一部が区画される燃料貯留室と、を有し、燃料貯留室に燃料が密閉された密閉状態においてプランジャ室の容積が減少すると、下向きの燃料貯留室内の燃料の抗力が連結部を介して吸入弁に付与され、アーマチャに電磁力が付与されていない場合、下向きの抗力と付勢力とによって吸入弁の先端とプランジャ室の壁面とが離間してプランジャ室と燃料供給路とが連通し、アーマチャに電磁力が付与される場合、アーマチャが上方に移動することで燃料貯留室の密閉状態が解除され、吸入弁の先端とプランジャ室の壁面とが接触してプランジャ室と燃料供給路とが非連通となる。【選択図】図4 |
---|