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. 17, 2023
Filed:
Sep. 23, 2021
Kabushiki Kaisha Toyota Jidoshokki, Kariya, JP;
Ryo Umeyama, Kariya, JP;
Yoshiyuki Nakane, Kariya, JP;
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya, JP;
Abstract
A centrifugal compressor comprises an impeller including a hub and a plurality of blades. Each blade has a positive pressure surface and a negative pressure surface extending from one side of an external radial surface toward the other side of the external radial surface and being of a positive pressure and a negative pressure, respectively, when the impeller rotates. The hub has a lightening hole that opens to the external radial surface between the positive pressure surface and the negative pressure surface of the plurality of blades. The lightening hole is provided closer to the positive pressure surface of the blade than the negative pressure surface of the blade.