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:
Sep. 15, 1981
Filed:
May. 08, 1979
William G Wyatt, Arlington, TX (US);
Vapor Energy, Inc., Grand Prairie, TX (US);
Abstract
Disclosed is an improved vapor generator of the kind in which a fuel-air mixture is combusted in a chamber through which water is flowed. The water acts as a coolant for the unit and is vaporized or converted to steam in the chamber in the presence of the flame. The steam formed from the feed water, the steam formed as a product of combustion, and the non-condensibles remaining after combustion issue from the chamber as a hot mixture suitable for a variety of uses, such as process steam, comfort-heating steam, and the like. The improvements include means for dividing the air feed into two parts, and means for forming a well-mixed stoichiometric mixture of fuel and the air of one part, which mixture is ignited and burned in a prechamber surrounded by and cooled by the air of the other part. The second part of the air is fed into the midregion of the soformed flame in the main chamber to lean it out and insure completeness of combustion, reducing production of carbon monoxide to extremely low levels. The mid-region of the flame is shielded from direct radiative or convective contact with the feed water flowing into the main chamber. The final region of the flame is brought into good direct radiative and convective contact with the feed water to vaporize it. The generator is especially adapted for low pressure operation by the provision of a pilot burner for striking a stable flame.