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:
Apr. 12, 2005
Filed:
Nov. 29, 2001
Satoshi Hirano, Tsukuba, JP;
Satoshi Hirano, Tsukuba, JP;
Agency of Industrial Science and Technology, Tokyo, JP;
Abstract
A heat storage device comprises a heat storage tankcharged with a heat storage materialfor storing the heat supplied from the outside, and a heat exchangerfor executing an injection and an extraction of heat between the inside of the storage tankand the outside by the heat exchange between the heat storage material and a heat transfer medium. The heat exchangeris disposed so as to execute a heat exchange between the central portionin the heat storage tankand the outside, and suppresses the natural convection of the heat storage materialof the outer portionby, for example, dispersing a liquid-absorbent materialin the outer portionsurrounding the central portion in the heat storage tank, whereby reduces the influence of external environment on the central portionin the heat storage tank, thereby suppressing the heat loss toward the outside.