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. 29, 2020
Filed:
Aug. 20, 2019
Seiko Epson Corporation, Tokyo, JP;
Shigekazu Aoki, Matsumoto, JP;
Norio Imaoka, Shimoina-gun, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A cooling device includes an evaporator configured to evaporate working fluid in a liquid phase due to a heat transferred from a cooling target, a condenser configured to condense the working fluid in the vapor phase, a vapor pipe through which the working fluid changed to the vapor phase in the evaporator flow into the condenser, and a liquid pipe through which the working fluid changed to the liquid phase in the condenser flow into the evaporator. The condenser has a phase change flow channel into which the working fluid in the vapor phase inflows via the vapor pipe, and through which the working fluid changed in phase from the vapor phase to the liquid phase flow out to the liquid pipe. The phase change flow channel has a reduced diameter part having a flow channel cross-sectional area decreasing in a direction from upstream toward downstream of the working fluid.