Patent ID: 6464450
Filing Date: 2002-10-15
Classification: F04D

Abstract:
A fuel pump for a vehicle comprising:a pump section having a flow channel and a rotatable impeller cooperating with said flow channel to pump fuel therethrough; a motor section disposed adjacent said pump section and having a motor to rotate said impeller; an outlet section disposed adjacent said motor section to allow pumped fuel to exit said fuel pump; and said pump section including a spacer ring spaced radially from said impeller and having an inner diameter thereof equal to an outer diameter of said flow channel, said impeller having a peripheral ring portion forming an outside diameter of said impeller and being in close radial proximity to said inner diameter of said spacer ring, an inner web portion spaced radially from said peripheral ring portion, and a plurality of blades disposed between said inner web portion and said peripheral ring portion and circumferentially therealong, said peripheral ring portion having an axial height less than an axial height of said blade tips.