System and method for testing fuel tank integrity

US7168297B2 · kind B2 · utility

Assignee

• Environmental Systems Products Holdings Inc. · US

Inventors

• Michael Herzog · Rothenburg ob der Tauber, DE
• Gordon E. Smith · Carrollton, US
• Charles Sulik · Tucson, US
• Arun Pandey · Tucson, US
• Valeriy Shishkin · Tucson, US
• Rex Graham Weedon · Tucson, US
• Mark Alan Davis · Tucson, US

Key dates

• Filing date: Oct 28, 2004
• Grant date: Jan 30, 2007
• Expiry date: Dec 24, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M37/20
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates generally to a system and method for testing fuel evaporative systems, and more particularly to a stand-alone tank tester system (and method) for testing vehicle fuel tank integrity. Furthermore, a self-contained calibration tank with switchable leak sizes for calibrating the tank tester to multiple leak sizes is provided. Constant flow and vacuum methods for testing fuel tank integrity are also provided.