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:
Aug. 10, 2021
Filed:
Jun. 26, 2017
Applicant:
Kobe Steel, Ltd., Hyogo, JP;
Inventors:
Yasuharu Matsumoto, Takasago, JP;
Takayuki Fukuda, Takasago, JP;
Assignee:
Kobe Steel, Ltd., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 25/02 (2006.01); F04B 49/06 (2006.01); F04B 49/10 (2006.01); F04B 41/06 (2006.01); F04B 25/00 (2006.01); F04B 49/02 (2006.01); F04B 53/14 (2006.01);
U.S. Cl.
CPC ...
F04B 25/02 (2013.01); F04B 25/00 (2013.01); F04B 25/005 (2013.01); F04B 41/06 (2013.01); F04B 49/022 (2013.01); F04B 49/065 (2013.01); F04B 49/10 (2013.01); F04B 53/14 (2013.01); F04B 2201/0208 (2013.01); F04B 2201/0605 (2013.01); F04B 2201/0803 (2013.01); F04B 2205/063 (2013.01);
Abstract
A gas leak determining method for a multi-stage compressor including: a first compressing unit that compresses a gas; and a second compressing unit that further compresses the gas compressed by the first compressing unit includes: a step of calculating a proportion of discharge pressure from the second compressing unit to discharge pressure from the first compressing unit or suction pressure into the second compressing unit; and a step of determining that a gas is leaking from the second compressing unit when the proportion becomes equal to or less than a set value.