Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Taylor R. Eckstein, Jr.0
Mark James Zima0
Date of Patent
October 19, 2010
Patent Application Number
11519264
Date Filed
September 12, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method of operating a directed relief valve to ventilate a refrigerant by sensing the concentration of refrigerant leakage from the air conditioning system, and if the first concentration exceeds a threshold, by sensing a second concentration. If the first and second concentrations exceed a predetermined concentration, the system will send a leak message to the operator and/or ventilate the refrigerant to the surrounding atmosphere. The system continuously monitors the refrigerant leakage concentration when the vehicle engine is operative, but only periodically monitors the refrigerant leakage concentration when the vehicle engine is inoperative.
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