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:
May. 08, 2012
Filed:
Feb. 04, 2010
Hiroyuki Kashihara, Kobe, JP;
Yasushi Yoshino, Kobe, JP;
Kiyoshi Matsumoto, Kobe, JP;
Takeshi Kimura, Kobe, JP;
Junichi Kitajima, Akashi, JP;
Atsushi Horikawa, Akashi, JP;
Hiroyuki Kashihara, Kobe, JP;
Yasushi Yoshino, Kobe, JP;
Kiyoshi Matsumoto, Kobe, JP;
Takeshi Kimura, Kobe, JP;
Junichi Kitajima, Akashi, JP;
Atsushi Horikawa, Akashi, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Hyogo, JP;
Abstract
A combustor, in which a flame holding region is formed at a location distant from a pilot burner to avoid burnout of the pilot burner and in which flame holding capability is increased to use a lean pre-mix gas for reducing NOx emission, is provided. The combustor includes a combustion liner having a cylindrical side wall that defines a combustion chamber; and a main burner positioned at a top portion of the combustion liner for injecting an annular pre-mix gas into the combustion chamber to form a reverse flow region at a downstream portion thereof, which region is oriented towards the top portion of the combustion chamber along a longitudinal axis. In this combustor, a pilot burner is arranged at the top portion for injecting a mixture of fuel and air only in a direction confronting the reverse flow region.