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US 12,736,020 B2Granted
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
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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.
Claims10
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
Dependencies are inferred from the claim text.