LOW PRESSURE JET BY-PASS SYSTEM FOR FUEL PUMP

摘要

By-pass structure (45) is connected between a high pressure portion of a fuel pump (16) and an inlet of a jet nozzle (24) of a jet assembly (18) of a fuel delivery module (10) of a vehicle. The by-pass structure is constructed and arranged such that under certain conditions when the flow of fuel from the low pressure portion of the fuel pump alone is insufficient to operate the jet pump assembly, fuel is selectively permitted to flow through the by-pass structure from the high pressure portion of the fuel pump to the inlet of the jet nozzle ensuring that a sufficient flow of fuel is present at the jet assembly to draw fuel into the reservoir.