US 11,905,900 B1
Exhaust system combustion for rapid catalyst heating
Andrew Baur, Whitmore Lake, MI (US); Xin Yu, New Hudson, MI (US); Anqi Zhang, Canton, MI (US); and David Cleary, West Bloomfield, MI (US)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Dec. 15, 2022, as Appl. No. 18/066,645.
Int. Cl. F02D 41/02 (2006.01); F02P 9/00 (2006.01); F01N 3/20 (2006.01); F02D 41/30 (2006.01)
CPC F02D 41/0255 (2013.01) [F01N 3/204 (2013.01); F01N 3/2013 (2013.01); F01N 3/2033 (2013.01); F02D 41/3017 (2013.01); F02D 41/3076 (2013.01); F02P 9/002 (2013.01); F01N 3/2006 (2013.01); F01N 2610/03 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A motor system comprising:
an engine having one or more cylinders;
an electronic control unit; and
an exhaust treatment system in fluid connection with and downstream of the one or more cylinders, wherein the exhaust treatment system comprises:
an exhaust line;
a flame arrestor;
a combustion zone, wherein the flame arrestor is located upstream of the combustion zone;
a combustion zone ignition source in the combustion zone; and
a catalyst downstream of and in thermal communication with the combustion zone.