TWO PHASE FLEX SPRING FUEL INJECTOR SPACER

摘要

A spacer (10) in the form of an annular two-phase flex spring of unitary construction including an outer wall (30) and an inwardly projecting circumferential ledge (34) of flexible, resilient character extending radially inwardly from the outer wall (30). The circumferential ledge terminates at a free edge (36) extending circumferentially about a pass -through opening for receipt of an element to be centered. The outer wall (30) and the circumferential ledge (34) form a dogleg cross - sectional profile. The two-phase flex spring (10) is characterized by a first phase stiffness upon application of a first compressive force and by a greater, second phase stiffness upon application of a second greater compressive force.