Patent ID: 7520270

Claim:
A pump module for use in a fuel tank, comprising: a chamber designed to be disposed within a tank body of the fuel tank; a fuel pump disposed within the chamber; a lid member having an inner tubular portion at a bottom surface thereof, for closing a ceiling opening formed in the tank body with the chamber disposed within the tank body; a telescopic means for supporting the chamber telescopically movably relative to the lid member; and a spring member provided around the telescopic means, for pressing the chamber toward a bottom portion of the tank body; wherein the chamber includes raised portions on an inner surface of a peripheral wall, and wherein the telescopic means are slidably insertable in guide holes in the raised portions, the guide holes having an inner diameter greater than an outer diameter of the telescoping means and less than an outer diameter of the spring member, and; wherein at least an upper end portion of the chamber has an outside diameter smaller than an inside diameter of the inner tubular portion so that the upper end portion is engaged in the inner tubular portion.