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. 11, 2012
Filed:
May. 28, 2010
Takeshi Yamamoto, Tokyo, JP;
Kazuo Shimodaira, Tokyo, JP;
Kazuaki Matsuura, Tokyo, JP;
Yoji Kurosawa, Tokyo, JP;
Seiji Yoshida, Tokyo, JP;
Takeshi Yamamoto, Tokyo, JP;
Kazuo Shimodaira, Tokyo, JP;
Kazuaki Matsuura, Tokyo, JP;
Yoji Kurosawa, Tokyo, JP;
Seiji Yoshida, Tokyo, JP;
Japan Aerospace Exploration Agency, Tokyo, JP;
Abstract
A main swirler of a triple annular configuration that is partitioned by a pre-filmer and a separator is installed in an inlet port of a main air flow channel. The vicinity of the inner wall of the main air flow channel provided with a main fuel injection port is bulged radially outward from the innermost surface (innermost surface of a small swirler) of a main swirler. Further, a distance from the main fuel injection port and the pre-filmer is set such that an effective opening area between the pre-filmer and 'the inner wall of the main air flow channel provided with the main fuel injection port' is equal to an effective opening area of the small swirler. The swirling directions of the swirlers of the main swirler are 'clockwise'-“counter-clockwise”-“clockwise” respectively along the radial outward direction when the swirling direction of the innermost swirler is taken as “clockwise”.