The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 1984
Filed:
Jun. 08, 1981
William B Kude, Plymouth, MN (US);
A Noel Pearman, St. Paul, MN (US);
Daniel L Youngbauer, St. Paul, MN (US);
Honeywell Inc., Minneapolis, MN (US);
Abstract
An apparatus and method for determining the heating value of gaseous fuels is disclosed which include the novel means for establishing a mixture of air and the gaseous fuel of interest in known volumetric proportions. An electrochemical sensor is provided to sense the products of combustion of the precise volumetric mixture and the output of the sensor is indicative of the relation of the mixture to a stoichiometric mixture of fuel and air. This system is provided for adjusting the proportions of fuel and air in the mixture of interest in response to the output of the electrochemical sensor until the sensor indicates that the mixture of known proportions is substantially stoichiometric. The system is provided for determining the heating value of the fuel from a known relationship between the heating value of the constituents of the fuel and the amount of oxygen required for stoichiometric combustion.