Submersible electronic drive module

A submersible electronic drive module for a vehicle in-tank fuel pump comprising,

• a circuit board assembly having an input connection for receiving an electric current, an output connection for applying electric power to an electric motor of a fuel pump and electrical components for supplying electric power to the motor,
• a heat sink constructed from a body of heat conductive material connected to said circuit board assembly for absorbing heat generated by said circuit board assembly,
• a fuel passage in heat transfer relationship with said heat sink and having an inlet communicating with the fuel pump outlet and an outlet for fuel delivery, such that fuel passing through said passage absorbs heat from said heat sink and thus said circuit board assembly,
• an attachment for removably connecting said drive module to the fuel pump, and
• a fuel-impervious casing substantially encapsulating said drive module such that fuel is prevented from contacting said circuit board assembly,
• said casing having an inner layer and an outer layer of material wherein said inner layer substantially encapsulates said drive module and said outer layer substantially encapsulates said drive module and said inner layer.

A submersible electronic drive module for a vehicle in-tank fuel pump comprising,

• a circuit board assembly having an input connection for receiving an electric current, an output connection for applying electric power to an electric motor of a fuel pump and electrical components for supplying electric power to the motor,
• a heat sink constructed from a body of heat conductive material connected to said circuit board assembly for absorbing heat generated by said circuit board assembly,
• a fuel passage in heat transfer relationship with said heat sink having an inlet communicating with a fuel pump outlet and an outlet for fuel delivery, such that fuel passing through said passage absorbs heat from said heat sink and thus said circuit board assembly,
• an attachment for removably connecting said dive module to the fuel pump,
• a fuel-impervious casing substantially encapsulating said drive module such that fuel is prevented from contacting said circuit board assembly, said casing having an inner layer constructed from an elastomeric material and an outer layer constructed from a thermoplastic material wherein said inner layer substantially encapsulates said drive module and said outer layer substantially encapsulates said drive module and said inner layer, and
• a metallized outer surface on said casing for suppressing radio frequency interference with said drive module.