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:
Feb. 07, 2023
Filed:
Jan. 14, 2022
Applicant:
Mitsubishi Heavy Industries Compressor Corporation, Tokyo, JP;
Inventor:
Hideki Nagao, Hiroshima, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/22 (2006.01); F04D 17/12 (2006.01); F04D 29/42 (2006.01);
U.S. Cl.
CPC ...
F04D 29/22 (2013.01); F04D 17/12 (2013.01); F04D 29/42 (2013.01);
Abstract
A compressor has a rotor. The rotor includes a plurality of impellers that include a disk having a solid structure having a buried center, and are adjacent to each other in an axial direction, and a plurality of bolts for fixing the plurality of impellers together. The disk has a disk surface facing the axial direction and a bolt hole penetrating the disk at a position deviated outward from an axis in a radial direction. The disk surface includes a contact surface of which at least a part is located outside the bolt hole in the radial direction, and a non-contact surface which is a region inside the contact surface in the radial direction.