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. 30, 2025
Filed:
May. 23, 2023
Toyo Engineering Corporation, Tokyo, JP;
Yoshikazu Ishii, Atami, JP;
Yoshikazu Ishii, Atami, JP;
TOYO ENGINEERING CORPORATION, Tokyo, JP;
[object Object];
Abstract
An economical compressed air energy storage (CAES) method effectively utilizing the capacity of space in the air storage portion in CAES plants to reduce the plant costs thereof is provided. An air storage portion is configured from a plurality of vessels, and a film to provide spaces with freely deformable shapes is disposed within each vessel. In the air compression step, the space on one side of the film within each vessel is filled in advance with a cushion gas, air is stored in the space on the other side of the film, and the cushion gas is changed into a fluid with a reduced volume to increase the amount of the air stored in the space on the other side of the film. In the air expansion step, fluid is heated and vaporized to decrease the amount of the air remaining on the other side of the film.