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. 18, 2023
Filed:
Mar. 10, 2022
International Engine Intellectual Property Company, Llc, Lisle, IL (US);
Andrei Makartchouk, Hinsdale, IL (US);
Joseph Domenico, Downers Grove, IL (US);
Tallis Ingram, Glenview, IL (US);
Steve Dickerson, Lake in the Hills, IL (US);
Louis Maza, Plainfield, IL (US);
Paul Laurence Berke, Chicago, IL (US);
Vijayasarathy Subramanian, Winfield, IL (US);
International Engine Intellectual Property Company, LLC, Lisle, IL (US);
Abstract
A Diesel Emissions Fluid (DEF) Thawing arrangement is provided for use with a vehicle having an engine, an Engine Control Module (ECM), an exhaust system, and an SCR catalytic device. A DEF injection system is connected to the exhaust system and to the ECM. A DEF tank is connected to the DEF injection system. An exhaust pipe branch is connected to the exhaust system. A heat exchanging apparatus is connected to the exhaust pipe branch and is configured to exchange heat from exhaust gas within the exhaust pipe branch to the DEF in the DEF tank. The heat exchanging apparatus may be an exhaust gas to DEF heat exchanger located at least partially within the DEF tank, or may be an exhaust gas to coolant heat exchanger connected to an engine coolant circuit and a coolant to DEF heat exchanger located at least partially within the DEF tank.