Patent ID: 9745931
Date: 2017-08-29
CPC Classifications: F01P,F02M

Claim:
1. A fuel system for an internal combustion engine, said fuel system comprising: an electric fuel pump; a conduit which defines a flow path through which fuel flows from said electric fuel pump to said internal combustion engine; a fuel pump control module with electronics which drive said electric fuel pump, said fuel pump control module being disposed within a compartment defined by a wall; and a heat sink in thermal contact with said fuel pump control module and extending out of said compartment through an aperture of said wall and into said flow path such that said heat sink is sealed to said wall, thereby preventing fluid communication through said aperture; wherein said heat sink includes a main body such that the circumference of said main body is in intimate, uninterrupted circumferential contact with said aperture, thereby preventing fluid communication through said aperture; and wherein said main body defines a plurality of alternating annular ribs and annular grooves such that said annular grooves are filled by said wall, thereby forming a tortuous path between said heat sink and said aperture.