Electrically conducting filter

US6453870B1 · kind B1 · utility

Inventors

• David Koller · Saline, US
• De Quan Yu · Ann Arbor, US
• Eric Roll · Belleville, US
• Ling Bai · Beijing, CN

Key dates

• Filing date: Dec 28, 2000
• Grant date: Sep 24, 2002
• Expiry date: Dec 28, 2020

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2037/082
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An electrically conducting fuel filter mechanism for a fuel supply system for an internal combustion engine. The housing for the fuel filter has a conductive inner or core layer and at least one non-conductive outer layer positioned adjacent the fuel. The conductive layer is made from a non-conductive material with conductive fibers or powders mixed in it, while the non-conductive layer is free from the conductive materials. Any electrostatic or electrical charge buildup in the fuel filter, fuel or housing, will be dissipated through the inner non-conductive layer forming conductive paths directly to the conductive layer. This prevents any further charge buildup and pitting.