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. 05, 2020
Filed:
Nov. 12, 2015
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
The purpose of the present invention is to improve the mechanical strength of a boss in correspondence with the direction in which the principal stress is generated in an impeller formed of fiber-reinforced resin. A hubis provided with a first region α arranged on the back surfaceside, and a second region β arranged on the front surfaceside. In the first region α the frequency with which the reinforcement fibers F dispersed at the periphery of a boss holeare oriented inclined with respect to the radial direction of the hubis high, and in the second region the frequency with which the reinforcement fibers dispersed at the periphery of the boss hole are oriented along the rotational axis line is high.