Caterpillar Inc.

Zachary Steven Birky

Robert L Meyer

Timothy A Thorson

Thierry Andre Marchione

Dennis Michael Turczyn

Robert Bierman

A method for calculating an amount of ammonia present in a gas sample is provided. The method includes receiving a first gas sample by a hydrogen analyzer. The first gas sample contains ammonia. The method also includes receiving a second gas sample by the hydrogen analyzer. The second gas sample is formed by eliminating ammonia from the gas sample. The method further includes measuring, by the hydrogen analyzer, an output signal for each of the first and second gas samples. The method includes calculating the amount of ammonia present in the gas sample based on the measured output signal for each of the first and second gas samples and a hydrogen error correction value.

Method for calculating amount of ammonia in gas sample

A method for manufacturing a seal is disclosed. The method includes coating a sealing surface substrate of an annular main seal body of the seal with a layer of Molybdenum, and melting the layer of Molybdenum to fuse the layer of Molybdenum into the sealing surface substrate to form an alloyed outer seal layer. The alloyed outer seal layer forms a sealing surface of the seal.

Method for manufacturing seals

A track pin for a track chain assembly includes a body made from a steel alloy. The steel alloy has a composition comprising iron, a nitride-forming element, and silicon. The composition of the steel alloy comprises at least 0.5 percent by weight of silicon. The body includes an external nitrided surface.

Nitrided track pin for track chain assembly of machine

A method for nitriding of at least one component of an aftertreatment system is provided. The method includes passing heated gases through the at least one component of the aftertreatment system. The method also includes heating the at least one component, based on the passage of the heated gases. The method further includes dosing a reductant into the at least one component. The method includes forming a nitride layer on an inner surface of the at least one component, based on the passage of the heated gases and the dosing of the reductant. The method also includes controlling the formation of the nitride layer on the at least one component based on adjusting at least one of the passage of the heated gases or the dosing of the reductant.

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Washington, IL, United States of America

Zachary Steven Birky