Invention Grant
- Patent Title: Thermal management lightoff assist systems and methods for regenerating oxidation catalyst in exhaust system
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Application No.: US16388338Application Date: 2019-04-18
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Publication No.: US11015502B2Publication Date: 2021-05-25
- Inventor: Joshua Lynn Ratts , Wilce Damion Williams
- Applicant: Caterpillar Inc.
- Applicant Address: US IL Deerfield
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Deerfield
- Agency: Brannon Sowers & Cracraft
- Main IPC: F01N3/08
- IPC: F01N3/08 ; F01N3/20 ; F01N3/10 ; F01N13/00 ; F01N3/035
Abstract:
A compression ignition internal combustion engine system includes an engine and an exhaust system with an upstream exhaust conduit, and an oxidation catalyst device (DOC). Systems and methods of desulfating the oxidation catalyst by the injection of a lightoff fluid to promote ignition of uncombusted fuel in the exhaust stream are disclosed.
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