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:
Dec. 23, 2025
Filed:
Jul. 23, 2025
Applicant:
Ihi Corporation, Tokyo, JP;
Inventor:
Ryuuta Tanaka, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/28 (2006.01); F04D 17/12 (2006.01);
U.S. Cl.
CPC ...
F04D 29/286 (2013.01); F04D 17/12 (2013.01);
Abstract
A compressor includes a first impeller that compresses a gas, a second impeller that further compresses the gas and that directs the gas to a downstream region that is located downstream of the second impeller, an interstage passage that directs the gas from the first impeller to the second impeller, and a bypass passage that recirculates the gas from the downstream region of the second impeller to the interstage passage. The bypass passage has a downstream end that opens to the interstage passage to direct the recirculated gas into the interstage passage.