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. 19, 1978
Filed:
Jan. 25, 1977
Sumitomo Metal Industries Limited, Osaka, JP;
Abstract
A burner for a furnace comprises a first pipe for delivering fuel to the furnace and a second pipe of larger diameter than the first pipe, positioned parallel with and encompassing the first pipe, which supplies air to the furnace in the annular space between the two pipes. The second pipe includes a large diameter section and a throttle section of gradually decreasing diameter which acts to speed up the air passing therethrough. In the annular space between the large diameter section of the second pipe and the first pipe is positioned a device having guide vanes which gives the air passing therethrough a swirling motion prior to acceleration in the throttle section. The burner further includes an air swirl passage between the throttle section of the second pipe and the furnace which conveys the air into the furnace. The air swirl passage also acts to convey the fuel into the furnace since the first pipe terminates prior to entry into the furnace.