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:
Oct. 16, 2001
Filed:
Jul. 06, 2000
Shigemi Mandai, Takasago, JP;
Masataka Ohta, Takasago, JP;
Hideki Haruta, Takasago, JP;
Koichi Nishida, Takasago, JP;
Shinji Akamatsu, Takasago, JP;
Masahiro Kamogawa, Takasago, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A nozzle cap (,) is disposed downstream of a nozzle body (,) of a combustor for a gas turbine, an inner surface part (,) of which is of a conical shape diverging downstream to define a fuel-jet guide (,) for guiding fuel jet ejected from one or more nozzle holes (,) provided at the center of a downstream end surface of the nozzle body. Fuel ejected from the one or more nozzle holes smoothly runs along the fuel-jet guide without remaining there to join with a swirl stream (S) in a swirl path (,), and to burn without generating smoke. Air introduced into a first auxiliary air path (,) defined between the nozzle body and a partition (,) at a position upstream thereof passes through a second auxiliary air path (,) defined between a downstream end surface (,) of the nozzle body (,) and an upstream end surface (,) of the nozzle cap and reaches an entrance (,) of the fuel-jet guide. The air then flows along the fuel-jet guide to cool the nozzle cap and prevent the fuel ejected from the one or more nozzle holes from sticking to the nozzle cap.