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:
Apr. 21, 2025
Filed:
Jul. 10, 2024
Honda Motor Co., Ltd., Tokyo, JP;
Shu Taguchi, Saitama, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
In an impeller comprising a rotatable hub and a plurality of blades provided circumferentially on the rotatable hub at regular intervals, the blades including first blades each having a first vibrational eigenvalue and second blades each having a second vibrational eigenvalue, the first blades and the second blades are circumferentially arranged with a predetermined regularity in a circumferential direction in an alternating manner and with a mistune distribution that does not include a mistune component having a wavenumber twice a number of nodal diameters computed fromwhere H is a rotational order of resonance under harmonic forced vibration, ND is a nodal diameter number in a traveling wave mode, n is an integer and N is a number of the blades.