View source for Fca us llc (20250137395). COLD START CATALYST BYPASS SYSTEM

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=COLD START CATALYST BYPASS SYSTEM=


==Organization Name==

[[:Category:fca us llc|fca us llc]]


[[Category:fca us llc]]

==Inventor(s)==

[[:Category:Jeff Brand of Highland MI US|Jeff Brand of Highland MI US]][[Category:Jeff Brand of Highland MI US]]

[[:Category:Ryan Sturgeon of Rochester Hills MI US|Ryan Sturgeon of Rochester Hills MI US]][[Category:Ryan Sturgeon of Rochester Hills MI US]]

[[:Category:Brett M Schubring of Macomb MI US|Brett M Schubring of Macomb MI US]][[Category:Brett M Schubring of Macomb MI US]]

[[:Category:Michael P Schmidt of Highland MI US|Michael P Schmidt of Highland MI US]][[Category:Michael P Schmidt of Highland MI US]]

==COLD START CATALYST BYPASS SYSTEM==


This abstract first appeared for US patent application 20250137395 titled 'COLD START CATALYST BYPASS SYSTEM

==Original Abstract Submitted==

an internal combustion engine system includes an internal combustion engine and a main exhaust aftertreatment system with a main catalytic converter configured to receive exhaust gas from the internal combustion engine. a variable geometry turbine (vgt) includes a plurality of vanes movable between a normal operation position and a restricted position. a light-off catalyst bypass system includes a bypass passage and a bypass catalytic converter configured to selectively receive exhaust gas from the internal combustion engine and bypass the vgt. during cold start, long idle, and/or low main catalytic converter temperature conditions, the plurality of vanes are moved to the restricted position to restrict or prevent exhaust gas from flowing through the vgt to facilitate directing the exhaust gas through the bypass passage and the bypass catalyst.



[[Category:F01N3/28]]
[[Category:F01N11/00]]
[[Category:F01N13/10]]
[[Category:F02B37/22]]
[[Category:CPC_F01N3/2892]]