Patent ID: 6158270
Filing Date: 2000-12-12
Classification: F02M

Abstract:
A vapor leak detection assembly for use with a vehicle of the type having a fuel tank, a first member which is communicatively coupled to said fuel tank and which selectively receives fuel and which communicates said received fuel to said fuel tank, said received fuel producing vapor and pressure within said fuel tank, said vehicle further having a second member which is communicatively coupled to said first member and to said fuel tank and which communicates at least a portion of said vapor, which is contained within said fuel tank, to said first member, said assembly comprising:a pressure sensor having first and second hollow end portions which are selectively connected to said second member and which cooperatively allow at least a portion of said vapor to be received by said sensor, said pressure sensor utilizing said at least a portion of said vapor to create a measurement value of said pressure within said fuel tank; andan electronic controller which is coupled to said pressure sensor, which receives said measurement value, and which uses said measurement value to detect fuel vapor leakage from said fuel tank.