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:
May. 21, 2024
Filed:
Aug. 02, 2019
Applicant:
Ihi Corporation, Koto-ku, JP;
Inventors:
Toru Kuga, Tokyo, JP;
Yasuhiro Ishikawa, Tokyo, JP;
Assignee:
IHI Corporation, Koto-ku, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/10 (2006.01); F02K 9/46 (2006.01); F04D 13/04 (2006.01); F04D 13/14 (2006.01); F04D 29/12 (2006.01); F16J 15/00 (2006.01); F16J 15/3204 (2016.01); F16J 15/40 (2006.01); F16J 15/44 (2006.01); F16J 15/447 (2006.01);
U.S. Cl.
CPC ...
F04D 29/104 (2013.01); F02K 9/46 (2013.01); F04D 13/14 (2013.01); F04D 29/108 (2013.01); F04D 29/128 (2013.01); F16J 15/002 (2013.01); F16J 15/3204 (2013.01); F16J 15/40 (2013.01); F16J 15/441 (2013.01); F16J 15/4472 (2013.01); F04D 13/043 (2013.01);
Abstract
A sealing device includes a plurality of non-contact seals provided along a sealed shaft; a contact seal provided on at least one of two sides of the plurality of non-contact seals; an injection part that supplies purge gas into a first space of spaces arranged in an axial direction of the sealed shaft, the spaces being between the plurality of non-contact seals and the contact seal; and a collector that collects the purge gas from a second space of the spaces between the plurality of non-contact seals and the contact seal, the second space being positioned to be next to the first space in the axial direction.