Caterpillar Inc.

Christopher Joseph Rynders, Jr

Brett M Bailey

Robert L Meyer

Clifford E Cotton, Iii

Michael James Pollard

Michael J Readey

Matthew Owen Stefanick

Clifford E Cotton

The present disclose is directed to a power system. The power system may include a power source that creates a flow of exhaust. The power system may further include a particulate collection device that receives the flow of exhaust. The power system may also include an additive injector located downstream of the power source, the additive injector may be configured to provide a controlled supply of additive to the flow of exhaust.

Power system

An exhaust particulate filter for an engine system includes an array of filter cartridges positioned within a shell, each of the cartridges having an electrically powered heating element coupled therewith. Exhaust gases may be distributed among the cartridges according to a single distribution pattern, and the filter can be regenerated without diverting, dividing or bypassing exhaust gases from the filter. The filter cartridges may be cylindrical or wedge-shaped, or of a variety of other configurations. Regeneration may take place according to a non-axial regeneration propagation profile. Other aspects include feedback control and feedforward control of regeneration based on sensing an electrical resistance property of each of the electrically powered heating elements.

Electrically regenerated exhaust particulate filter having non-axial regeneration flame propagation

Growing community of inventors

Peoria Heights, IL, United States of America

Christopher Joseph Rynders, Jr