US 12,404,789 B1
Diesel exhaust fluid cooling system
Timothy M. Lyons, Batavia, IL (US)
Assigned to International Engine Intellectual Property Company, LLC, Lisle, IL (US)
Filed by International Engine Intellectual Property Company, LLC, Lisle, IL (US)
Filed on Feb. 26, 2024, as Appl. No. 18/587,337.
Int. Cl. F01M 13/04 (2006.01); F01M 13/00 (2006.01); F01M 13/02 (2006.01)
CPC F01M 13/04 (2013.01) [F01M 2013/0038 (2013.01); F01M 2013/026 (2013.01); F01M 2013/0411 (2013.01); F01N 2610/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A vehicle, comprising:
a diesel engine having a crankcase;
a crankcase ventilation system downstream of the crankcase and configured to ventilate crankcase exhaust gases;
a diesel exhaust fluid (DEF) reservoir including DEF therein, the DEF configured to reduce emissions of the diesel engine;
a DEF cooling system operably connected to the crankcase and the DEF reservoir, the DEF cooling system configured to receive the DEF and use the DEF to cool the crankcase exhaust gases passing there through;
a turbocharger with a compressor connected to the diesel engine, the compressor receiving intake air and recirculated crankcase exhaust gases; and
a DEF heat exchanger adjoining the compressor of the turbocharger, the DEF heat exchanger configured to receive the DEF and use the DEF to cool the compressor of the turbocharger.