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:
Mar. 20, 1990
Filed:
Aug. 09, 1988
Applicant:
Inventors:
Mitsuyoshi Nakamoto, Nara, JP;
Kenji Okamoto, Nara, JP;
Tatsuo Fujita, Hirakata, JP;
Sachio Nagamitsu, Kyoto, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23C / ;
U.S. Cl.
CPC ...
431176 ; 431178 ; 431179 ; 431207 ; 431243 ; 431 11 ; 432146 ;
Abstract
A burner includes a number of flame ports each having a fuel supply passage and provided on a pair of opposite walls of a combustion chamber such that each of the walls and the fuel supply passages define a cooling passage. In the burner, a wide stable flame region is achieved at a high excess air ratio, the amount of NOx produced is reduced and backfire is prevented by cooling the fuel supply passages. Furthermore, a flame area per unit area of each flame port is increased such that the burner can effect high-load combustion.