Back to results
US 2023/0095003 A1Published application
Engine system components including catalytic coatings and related apparatuses, methods, systems, and techniques
AssigneeCummins Inc.
InventorsJ. Steven Kolhouse, Adrian P. Dale, Brian S. Bower
Life of this patent
Estimating the term…
Abstract
Catalytic coatings and techniques for applying the catalytic coatings may be utilized in connection with a number of engine system components including fuel injectors components, exhaust gas recirculation (EGR) valve components, EGR cooler components, piston components, spark plugs, engine valves (intake valves and exhaust valves), engine valve seats, oxygen sensors, NOx sensors, and particulate sensors.
Claims20
An apparatus comprising:
- an exhaust gas recirculation (EGR) valve body comprising a flow passage extending between a gas inlet and a gas outlet;
- and
- an EGR valve comprising a head and a shaft moveable within the interior flow passage to selectably seat and unseat a head seating surface of the head from a body seating surface of the EGR valve body;
- wherein a catalytic coating is provided on at least one of:
- at least a portion of the head seating surface, at least a portion of the body seating surface, and at least a portion of the shaft.
2 more elements
An apparatus comprising:
- an exhaust gas recirculation (EGR) cooler comprising a plurality of exhaust flow passages defined by a plurality of wall members extending between a gas inlet side and a gas outlet side;
- wherein a catalytic coating is provided on at least a portion of the plurality of exhaust flow passages.
Dependencies are inferred from the claim text.