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:
Nov. 06, 2018
Filed:
Feb. 01, 2017
GM Global Technology Operations Llc, Detroit, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
An internal combustion engine includes an air intake system in communication with a plurality of cylinders. An exhaust system is in communication with the plurality of cylinders. An EGR passage is in communication with the exhaust system and the air intake system. The EGR passage includes an EGR cooler with an EGR inlet end with a passage having a first portion extending in one direction in an assembled condition toward an intermediate section. The passage includes a second portion extending in an opposite direction from the intermediate section toward an EGR outlet end. A first cooler matrix is disposed in the first portion and a second, optional, cooler matrix disposed in the second portion. A thermally separated bypass channel is provided to allow a fast warm-up and guarantee the lowest possible pressure drop. The EGR cooler shape allows a compact packaging around the bypass pipe.