Fuel quality sensor associated with a housing in fuel delivery system

摘要

An apparatus 10 monitors at least one fuel quality characteristic of fuel passing through a fuel delivery system 12 of a motor vehicle. The apparatus 10 includes a fuel rail assembly 18 connectable to the fuel delivery system 12 of the motor vehicle. A fuel rail assembly 18 has at least one housing 14 associated with either a pressure regulator or an accumulator. A sensor is associated with the fuel rail assembly 18 for measuring at least one characteristic of fuel quality of fuel passing through the fuel rail assembly 18. At least one characteristic includes temperature and/or impedance. The sensor 16 can include a pair of plates 20, 22 spaced from one another by a gap of between approximately 0.5 mm to approximately 1.0 mm, inclusive, for measuring impedance across the gap.