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:
Dec. 01, 1981
Filed:
May. 18, 1979
Temple S Voorheis, Atherton, CA (US);
Ralph R Vosper, San Jose, CA (US);
Chester S Binasik, Palo Alto, CA (US);
Norman Harthun, San Carlos, CA (US);
Coen Company, Inc., Burlingame, CA (US);
Abstract
A burner which has a central liquid fuel atomizing nozzle is disclosed. An inner member defines a steam chamber and is surrounded by a shell that defines a liquid fuel compartment. A conduit extends from the steam chamber forming a steam core flow. A first passage feeds liquid fuel about the steam core flow to form an annular liquid fuel stream thereabout. A second passage forms an outer steam flow which envelops the annular liquid fuel flow. The burner further includes ducts to form a first combustion airflow co-axially about the nozzle, a second combustion airflow which surrounds the first flow, and a third combustion airflow which envelops the second flow and generally protects the furnace wall from coming into contact with the flame generated by the burner. Gas spuds are placed in the second combustion airflow and each spud includes a discharge plate which generally faces in the direction of combustion airflow and which has one or more gas discharge holes arranged to cause the gas streams to substantially cover the entire space occupied by the gas stream downstream of the nozzle and upstream of the combustion chamber of the furnace. The plates of the spuds are relatively thick and the gas is supplied to the spuds at a relatively low pressure.