Electrostatic charge control for in-tank modules
View Patent ↗An in-tank fuel module for a fuel tank having a conductive lead for connection to an electrical ground plane and at least a first electrically conductive component, and a conductive polymeric strand electrically connecting the component to the lead. A jet aspiration pump is made of conductive polymeric material. A conductive component is connected to the ground plane through the fuel level sensing assembly circuit.
1. An in-tank fuel module fuel level sensor assembly including an electrical conductor for connection to a ground plane of an electrical system;
said electrical conductor including a variable resistor arrangement;
a conductive connection extending from said variable resistor arrangement and in electrical contact therewith;
said in-tank fuel module including a conductive component connected only to said conductive connection, said conductive component otherwise isolated from the electrical system.
2. A fuel level sensor assembly as claimed in claim 1 further comprising:
a base contact retainer pivotally mounted on said base wherein;
said conductive component comprises a conductive float arm mounted to said contact retainer;
said variable resistor arrangement comprises a resister card including a plurality of parallel and separated traces connected through resisters to the ground plane;
a contact member on said contact retainer contacting said separated traces;
said conductive connection extends between said conductive float arm and said contact member; and
being connected to the ground plane through said traces.
3. The fuel level sensor as claimed in claim 2 wherein said contact member includes a metallic wire.
4. The fuel level sensor as claimed in claim 2 wherein said contact member includes a conductive plastic strand.
5. The fuel level sensor as claimed in claim 2 wherein said contact retainer is conductive and defines said contact member.