Caterpillar Inc.

Aaron Harmon

Anthony C Rodman

Yong Yi

Jason Kenneth Bloms

Andrew Michael Denis

Jayaraman Krishnapura Venkataraghavan

Joshua Lynn Ratts

Raymond Upano Isada

Eric Paul Spaeth

Karthik Jayasankaran

Shu Zhang

Matthew Colin Mowers

Deepti Bhosekar

Nikhil Lulla

A piston for an internal combustion engine includes a piston crown having a combustion bowl formed therein, a piston rim extending circumferentially around the combustion bowl and a heat-dissipating chamfer between the combustion bowl and the piston rim. The chamfer is structured by way of at least one of size, angle, or material thickness to an oil gallery to balance heat dissipation with combustion properties. Related methodology is disclosed.

Piston balancing heat dissipation and combustion properties in internal combustion engine

A mixing system for an aftertreatment system is disclosed. The mixing system includes a mixing tube. The mixing tube is provided in fluid communication with an exhaust conduit. The mixing system also includes a reductant injector positioned at an injection location on the mixing tube. The mixing system further includes a mixer assembly positioned downstream of the injection location. The mixer assembly includes a plurality of mixing elements provided in a series arrangement, such that each of the plurality of mixing elements is provided downstream of one another.

Mixing system for aftertreatment system

An emissions control system includes a Selective Catalytic Reduction (SCR) device, one or more monitoring devices and one or more sensors. The system further includes a controller configured to determine an operating emissions gas conversion ratio of the SCR device. The controller is further configured to determine an injection amount of a reduction agent to maintain an operating emissions gas conversion ratio of the SCR device and to adjust the operating emissions gas conversion ratio to a target emissions gas conversion ratio by adjusting the injection amount of the reduction agent to the SCR device. The system utilizes a Time-Temperature model to determine the target emissions gas conversion ratio and/or reduction agent injection ratio. The system further includes a reduction agent injector configured to supply the adjusted injection amount of the reduction agent to the SCR device.

Adaptive catalytic conversion and reduction agent control

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Dunlap, IL, United States of America

Aaron Harmon