Patent ID: 6527507
Filing Date: 2003-03-04
Classification: F02M,F04D,H02K

Abstract:
A feeding aggregate for fuel, comprising a feed pump which is formed as a side passage pump and has a housing, a pump chamber formed in said housing, and an impeller arranged in said pump chamber; an electric motor provided for driving of said impeller and having a stator and a rotor, with said rotor formed of one piece with said impeller, said feed pump having at least one pump stage, a rim of vanes having vane chambers therebetween and provided on one end side of said impeller, a partial ring-shaped side passage formed in said housing opposite to said rim of vanes and having an inlet and an outlet spaced from one another in a peripheral direction of said impeller and open into said side passage, said at least one pump stage of said feed pump having only one said side passage in said housing, said inlet and said outlet of said side passage being arranged at the same end side of said impeller, and said impeller at an end side which is opposite to said vanes being provided with recesses which are at least approximately mirror-symmetrical to said vane chambers and are connected through openings in said impeller with said vane chambers.