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. 01, 2025
Filed:
Jan. 29, 2024
Fca Us Llc, Auburn Hills, MI (US);
Jeff Brand, Highland, MI (US);
John D Frederick, Rochester Hills, MI (US);
Kenneth E Hardman, Clarkston, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
An internal combustion engine system includes an internal combustion engine, a main exhaust aftertreatment system with a main catalytic converter configured to receive exhaust gas from the internal combustion engine, and a turbocharger turbine selectively rotatable in a first direction for a normal operation and an opposite second direction for a reverse rotation operation. A light-off catalyst bypass system with a bypass passage and a bypass catalytic converter is configured to selectively receive exhaust gas from the internal combustion engine and bypass the turbine. During cold start, long idle, and/or low main catalytic converter temperature conditions, the turbine is rotated in the second direction to restrict or prevent exhaust gas from flowing through the turbine to facilitate directing the exhaust gas through the bypass passage and the bypass catalytic converter.