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. 30, 2006
Filed:
Jun. 23, 2004
Applicants:
Kiyoshi Segawa, Hitachi, JP;
Yoshio Shikano, Hitachinaka, JP;
Yoshiaki Yamazaki, Hitachi, JP;
Shigeki Senoo, Hitachi, JP;
Yoshiharu Nakayama, Hitachi, JP;
Inventors:
Kiyoshi Segawa, Hitachi, JP;
Yoshio Shikano, Hitachinaka, JP;
Yoshiaki Yamazaki, Hitachi, JP;
Shigeki Senoo, Hitachi, JP;
Yoshiharu Nakayama, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
The pressure distribution curve of the blade suction-side surface excluding the leading edge portion and the trailing edge portion drops in two stages in the area from the leading edge to the minimum pressure point.