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. 10, 2026
Filed:
Sep. 06, 2024
Ihi Corporation, Tokyo, JP;
Ryuuta Tanaka, Tokyo, JP;
Yosuke Akamatsu, Tokyo, JP;
Satoshi Ouchida, Tokyo, JP;
Masahiro Nakajima, Tokyo, JP;
Seiichiro Yoshinaga, Tokyo, JP;
Abstract
A compressor including an impeller housing accommodating a first impeller configured to compress a fluid and a second impeller configured to further compress the fluid, and an interstage component forming, together with the impeller housing, an interstage passage that includes a curved passage. The curved passage is formed by an inner wall surface that is curved, and by an outer wall surface that is curved. A first wall surface selected from the inner wall surface and the outer wall surface is formed by the impeller housing, and a second wall surface selected from the inner wall surface and the outer wall surface is formed by the interstage component. A distance between the inner wall surface and the outer wall surface is constant along an entire length of the curved passage.