Double fuel feed for motor vehicle has three-way valves for auxiliary fuel tank controlling flushing of injection pump

摘要

The double fuel feed for has an auxiliary tank (1) with an independent electrical boost pump and a polyamide fuel circuit (12). The circuit has filters (5) and three-way electro-valves at the injection pump (14) inlet and return outlet. This allows flushing of the injection pump if the fuel tank is contaminated by domestic heating oil.