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. 04, 2001
Filed:
Oct. 18, 2000
Kazuhiro Togawa, Saitama, JP;
Hiroyuki Kitani, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An engine cooling unit and an exhaust gas heat exchanger,for use with the exhaust gas from an engine are connected with a circulation path,for circulating a heat transfer medium. The output of the circulation path,is connected via a conduit,to an output heat exchanger installed in e.g. a hot water storage tank,. The exhaust gas heat exchanger,is disposed across the circulation path,at the upstream side of the engine cooling unit of the engine,. The heat transfer medium introduced into the exhaust gas heat exchanger,is set to a lower temperature enough to maintain the temperature of vapor in the exhaust gas of which heat is transferred to the heat transfer medium lower than the dew point. The heat transfer medium after drawing generic heat from the exhaust gas and receiving its condensation heat in the exhaust gas heat exchanger,is passed to the engine cooling unit,A where it draws more heat. Accordingly, the heat generated by the engine,can be recovered at a higher efficiency.