초록 ▼

A method and system for detecting leaks in a fuel dispenser is operative to pneumatically pressurize a selectable one of a vapor recovery portion and a fuel dispensing portion using a compressed air flow. A flowmeter measures the flow rate of the compressed air communicated to the fuel dispenser for

A method and system for detecting leaks in a fuel dispenser is operative to pneumatically pressurize a selectable one of a vapor recovery portion and a fuel dispensing portion using a compressed air flow. A flowmeter measures the flow rate of the compressed air communicated to the fuel dispenser for pressurization thereof. A processor provides an indication of the leakage condition of the fuel dispenser based upon the pneumatic flow rate measured by the flowmeter which satisfies a pressurization condition for the fuel dispenser, such as maintaining the pressurization level above a threshold value. The flow rate of compressed air needed to maintain this pressurization level is indicative of the leak rate.

대표청구항 ▼

[ What is claimed is:] [1.] A leak detection system for use with a fuel dispenser, said leak detection system comprising:pressurization means for pneumatically pressurizing at least a portion of said fuel dispenser;control means for controlling the pneumatic pressurization activity of said pressuriz

[ What is claimed is:] [1.] A leak detection system for use with a fuel dispenser, said leak detection system comprising:pressurization means for pneumatically pressurizing at least a portion of said fuel dispenser;control means for controlling the pneumatic pressurization activity of said pressurization means;measurement means for measuring the pneumatic flow rate associated with said pressurization means; andprocessor means for providing an indication of the leakage condition of said at least a portion of said fuel dispenser based upon the pneumatic flow rate measured by said measurement means which satisfies a pressurization condition for said fuel dispenser, said pressurization means operable to controllably pneumatically pressurize at least one of a vapor recovery portion and a liquid fuel dispensing portion of said fuel dispenser.