초록 ▼

A vapor system for a fuel dispenser having at least one vapor sensor placed along a vapor recovery line for determining the amount of captured vapor. The vapor amounts are determined by the sensor at a number of times during the fueling process. These are sent to a control system which compares the

A vapor system for a fuel dispenser having at least one vapor sensor placed along a vapor recovery line for determining the amount of captured vapor. The vapor amounts are determined by the sensor at a number of times during the fueling process. These are sent to a control system which compares the amounts and determines whether they are within a predetermined range. Consistent readings indicate that the vapor recovery system is operating correctly. Inconsistent results indicate either a leak within the vapor recovery line, or fuel is being drawn into the vapor recovery line. These problems within the vapor recovery system can be diagnosed and the necessary corrective steps may be implemented.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method of monitoring a vapor recovery system for a fuel dispenser during a fueling event comprising the steps of:obtaining a first vapor level within a vapor recovery line of a vapor recovery system;comparing the first vapor level to each of a plurality of second vapo

[ What is claimed is:] [1.]1. A method of monitoring a vapor recovery system for a fuel dispenser during a fueling event comprising the steps of:obtaining a first vapor level within a vapor recovery line of a vapor recovery system;comparing the first vapor level to each of a plurality of second vapor levels obtained during the fueling event; anddetermining if there is a malfunction in said vapor recovery system based upon the comparison between the first and second vapor levels.