Caterpillar Inc.

Sudhakar Kakani

Umakanth Sakaray

Jim K Carroll

Travis S Johnson

Matthew Ronald Hulen

Victor L Sheldon, Jr

Dhanasekar Murugan

Rakesh Chandran Ramachandran

Dennis P Holler

Steven James Eveker

Randall J Anliker

Michael W Edwards

Subhro Samarendra Nathak

Larry L Spurgeon

Scott D Vollmer

Sathishkumar Bakthavachalu

Ram Kumar Ramasamy

Robert C Horst

An apparatus for engine exhaust sound attenuation includes a housing, a plurality of baffle plates arranged within the housing. The baffle plates are disposed apart from each other to define a plurality of intermediate chambers. The plurality of intermediate chambers includes a first resonant chamber proximate to the outlet chamber, a second resonant chamber proximate to the inlet chamber, a first intermediate chamber proximate to the second resonant chamber, and a second intermediate chamber proximate to the first intermediate chamber and the first resonant chamber. An inlet tube and an outlet tube are included. A first tube directs a flow of exhaust from the inlet chamber to one of the plurality of intermediate chambers via an interior of the first tube. Additionally, a second tube directs the flow of exhaust from a second one of the plurality of intermediate chambers to the outlet chamber via an interior of the second tube.

Multi-chambered sound attenuation with resonant frequency targeting

An enclosure for a generator includes an air inlet formed at a first end of the enclosure, and an air inlet opening formed in a sidewall of the enclosure. The air inlet includes an air inlet duct formed in an interior space of the enclosure, and in fluid communication with the air inlet opening. The air inlet duct receives the airflow from the air inlet opening to direct the airflow towards an air outlet of the enclosure. The air outlet includes an air outlet duct formed at a second end of the enclosure which receives the airflow from the air inlet opening. The air outlet duct directs the airflow towards an air outlet opening formed in a top plate of the enclosure which provides an exit for the airflow to escape from the interior space to an ambient environment of the enclosure.

Enclosure with inlet and outlet baffles for generator set

A thermal management system for an engine is disclosed. The thermal management system may have a first hydraulic circuit configured to circulate a fluid through the engine. The thermal management system may also have a second hydraulic circuit pressurized by the engine to heat the fluid during operation of the engine.

Engine system having dedicated thermal management system

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Lafayette, IN, United States of America

Sudhakar Kakani