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:
Jan. 14, 2020
Filed:
Mar. 11, 2016
Kobe Steel, Ltd., Hyogo, JP;
Takashi Okuno, Takasago, JP;
Kenji Nagura, Takasago, JP;
Kobe Steel, Ltd., Hyogo, JP;
Abstract
The present invention is to properly manage life of an accumulator and extend the life of the accumulator. A gas supply system includes a control section, an acquiring section, a classifying section, and a judging section. The acquiring section acquires stress amplitude of accumulators from a pressure difference between first pressure on the gas storage side and second pressure on the gas lead-out side. The classifying section classifies the stress amplitude into a plurality of groups. The judging section divides the calculated acquirement number nof the stress amplitude for each of the groups by the predetermined breaking cycle number N, and determines a fatigue degree Σn/N. In a case where this value becomes a predetermined threshold value or more, the judging section judges that the accumulator comes to the end of the life.