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:
Feb. 01, 2005
Filed:
Jan. 06, 2003
Peter Kelller-sornig, Baden, CH;
Edoardo Mazza, Buchs, CH;
Bozidar Seketa, Wettingen, CH;
Alstom Technology LTD, Baden, CH;
Abstract
A compressed air energy storage system comprises a cavern () for stored compressed air and a system for providing the compressed air to a power train (), this system including a recuperator () and a first valve arrangement () that controls the flow of the compressed air from the recuperator and to the power train (). A system for warm-keeping of the power train () during stand-by operation of the compressed air energy storage system comprises the recuperator () and/or an auxiliary electrical air heater () and a second valve arrangement () for controlling the airflow for warm-keeping. The system for warm-keeping of the power train allows improved temperature control and avoids disadvantages associated with a warm-keeping system having a combustor.