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, 2011
Filed:
Apr. 28, 2008
Masashi Miyagawa, Ichinomiya, JP;
Kimio Kohara, Nagoya, JP;
Seiji Inoue, Nukata-gun, JP;
Denso Corporation, Kariya, JP;
Abstract
An exhaust heat recovery device includes an evaporator for evaporating working medium sealed thereinto by exhaust heat from an internal combustion engine, a condenser for cooling the working medium evaporated at the evaporator, and a communication portion for communicating the evaporator with the condenser in an annular shape. The exhaust heat recovery device further includes an internal pressure operating valve adapted to be closed when a pressure of the working medium is equal to or more than a predetermined pressure, and a temperature operating valve adapted to be closed when a temperature of the coolant is equal to or more than a predetermined temperature. The internal pressure operating valve and the temperature operating valve are disposed between a downstream side of the condenser and an upstream side of the evaporator.