Patent Number: 6,296,458

Title: Electric fuel pump

Abstract: An electric fuel pump for an internal combustion engine in which a pump mechanism is provided in a housing for pumping fuel from an inlet to an outlet of the housing. A d.c. motor in the housing is drivingly connected to the pump mechanism, the fuel flowing through the housing past the motor to the outlet. A module including a commutation circuit for the d.c. motor is sealed in the housing from the fuel which flows therearound and cools the module. The module is constructed with an injection-molded casing around the circuit which is connected to stator windings of the motor and to an outside power supply.

Inventors: Zacher; Wolfgang (Dobein, DE), Rathke; Ronald (Dobein, DE)

Assignee: Pierburg AG

International Classification: F02M 37/08 (20060101); H02K 3/52 (20060101); H02K 3/46 (20060101); H02K 5/12 (20060101); H02K 5/128 (20060101); H02K 7/14 (20060101); H02K 11/04 (20060101); F04B 017/00 ()

Expiration Date: 10/02/2018