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.

Date of Patent:
Dec. 17, 2019

Filed:

May. 05, 2017
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;

Inventor:

Toshio Murata, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02N 19/10 (2010.01); F01N 5/02 (2006.01); F02G 5/02 (2006.01); F01N 3/02 (2006.01); F01P 3/20 (2006.01); F01P 7/14 (2006.01);
U.S. Cl.
CPC ...
F02N 19/10 (2013.01); F01N 3/0205 (2013.01); F01N 5/02 (2013.01); F01P 3/20 (2013.01); F02G 5/02 (2013.01); F01N 2240/02 (2013.01); F01N 2240/36 (2013.01); F01P 2007/146 (2013.01); F01P 2060/16 (2013.01); Y02T 10/16 (2013.01); Y02T 10/166 (2013.01); Y02T 10/20 (2013.01);
Abstract

In a distribution flow path that allows engine coolant to circulate between an exhaust heat recovery unit and an engine, an upstream flow path on the upstream side of the engine and a downstream flow path on the downstream side of the engine are communicated with each other by means of a bypass flow path to thereby form a short flow path with a shorter flow path length than in a case where the engine coolant that has exited the exhaust heat recovery unit passes through the engine. A valve that can adjust the amount of the engine coolant flowing to the bypass flow path and a short flow path pump are disposed.


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