초록 ▼

A pressure equalizer valve device incorporated in a fuel delivery valve assembly for use in a fuel injection pump, the fuel delivery valve assembly having a valve chamber and a delivery valve member axially movable in part within the valve chamber, the pressure equalizer valve device including a hol

A pressure equalizer valve device incorporated in a fuel delivery valve assembly for use in a fuel injection pump, the fuel delivery valve assembly having a valve chamber and a delivery valve member axially movable in part within the valve chamber, the pressure equalizer valve device including a hollow equalizer valve casing member secured to the delivery valve member and having a valve seat surface portion, an equalizer valve element movable into and out of a position seated on the valve seat surface portion, a spring seat member engaging the equalizer valve element, and a helical compression spring seated at one end on the spring seat member and at the other within the delivery valve member, wherein the equalizer valve element, the spring seat member and the spring are all accommodated within the equalizer valve casing member.

대표청구항 ▼

A pressure equalizer valve device incorporated in a fuel delivery valve assembly for use in a fuel injection pump, the fuel delivery valve assembly having a valve chamber and a delivery valve member axially movable in part within the valve chamber, the delivery valve member having an axially elongat

A pressure equalizer valve device incorporated in a fuel delivery valve assembly for use in a fuel injection pump, the fuel delivery valve assembly having a valve chamber and a delivery valve member axially movable in part within the valve chamber, the delivery valve member having an axially elongated concavity which is open at one end of the delivery valve member, the pressure equalizer valve device comprising (a) a hollow equalizer valve casing member which has an axial end portion closely received in said axially elongated concavity and which is thereby fixedly secured to said delivery valve member, said casing member having a valve seat surface portion and a valve chamber open in said delivery valve member, (b) an equalizer valve element movable into and out of a position seated on said valve seat surface portion, and (c) biasing means engaging said equalizer valve element and located in part within said delivery valve member for urging said equalizer valve element against said valve seat surface portion of said equalizer valve casing member, (d) wherein said equalizer valve element and at least a portion of said biasing means are accommodated within the valve chamber in said equalizer valve casing member.