Arrangement for feeding fuel from supply tank

摘要

An arrangement for feeding a fuel from a supply tank to an internal combustion engine, the arrangement comprises a motor; a multistage feed pump unit driven by the motor and including a flow pump having a rotor and a gerotor pump having an inner runner arranged so that the rotor and the inner runner have aligning axes of rotation and the flow pump is arranged upstream of the rotor pump as considered in the flow direction of a fuel, the rotor of the flow pump and the inner runner of the gerotor pump being located near one another as considered in an axial direction, the gerotor pump also having an outer runner which surrounds a feed chamber, and the rotor of the flow pump having a wall which axially limits the feed chamber surrounded by the outer runner of the gerotor pump.