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:
Jan. 09, 2007
Filed:
Jul. 23, 2004
Masatoshi Takada, Chiyoda-ku, JP;
Yoshiharu Hayashi, Chiyoda-ku, JP;
Yoshitaka Kojima, Chiyoda-ku, JP;
Masatoshi Takada, Chiyoda-ku, JP;
Yoshiharu Hayashi, Chiyoda-ku, JP;
Yoshitaka Kojima, Chiyoda-ku, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A gas turbine washing-date determination apparatus of the present invention is equipped with a sum cost calculation means for calculating a sum of loss cost due to not washing a compressor from a compressor efficiency calculated, and determines a gas turbine washing-date with using the sum of the loss cost. Meanwhile, in the gas turbine washing-date determination apparatus the compressor efficiency is calculated from process data of a gas turbine plant, and a compressor washing-date is determined, based on the compressor efficiency.