Tenneco Automotive Operating Company Inc.

Gabriel S Salanta

Guanyu Zheng

Adam J Kotrba

Daniel Salanta

Michael A Golin

Stephen Joe Myers

William Victor Alcini

Ruth Ann Latham

Steven A Freis

Mark Kluesner

Timothy Jackson

Henry Sullivan

Michael Joseph Torzewski

Mike Golin

An exhaust gas treatment device, which includes an outer layer, an inner layer that is at least in part disposed within the outer layer, and a loose-fill insulation disposed in the volume between the outer layer and the inner layer, where a piece of fiber mat is disposed between the outer layer and the inner layer and forms a barrier that at least partially prevents the loss of the loose-fill insulation from the volume between the outer layer and the inner layer and a manufacturing method that includes placing a loose-fill insulation into the volume of space between an inner layer and an outer layer and positioning a piece of fiber mat between the outer layer and the inner layer to form a barrier that at least partially prevents the loss of the loose-fill insulation from the volume of space between the outer and inner layers.

Loose-fill insulation exhaust gas treatment device and methods of manufacturing

An exhaust mixer () is provided for use in an engine exhaust system () downstream from an additive injector (). The mixer () includes eight vanes (), with four of the vanes (A) extending from a first side () of the mixer () and arranged in an equally spaced circumferential array around a central axis (), and the other four of the vanes (B) extending from an opposite side () of the mixer () and arranged opposite from the other four vanes (A) in an equally spaced circumferential array.

Exhaust gas additive/treatment system and mixer for use therein

An emissions system for reducing nitrogen oxides in engine exhaust includes an emissions catalyst having an inlet adapted to receive an exhaust from the engine. A fuel tank is adapted to provide fuel for combustion within the engine. A first injector is operable to inject fuel into the exhaust upstream of the catalyst. A second injector is operable to inject supplemental reductant from a supplemental reductant tank into the exhaust upstream of the catalyst. A controller is operable to control the first and second injectors and vary the supply of fuel and supplemental reductant into the exhaust to reduce nitrogen oxides within the exhaust.

On-vehicle nitrogen oxide aftertreatment system

An exhaust mixer () is provided for use in an engine exhaust system () downstream from an additive injector (). The mixer () includes eight vanes (), with four of the vanes (A) extending from a first side () of the mixer () and arranged in an equally spaced circumferential array around a central axis (), and the other four of the vanes (B) extending from an opposite side () of the mixer () and arranged opposite from the other four vanes (A) in an equally spaced circumferential array. The vanes () include embossed ribs () and mount flanges ().

A system for controlling the temperature of an exhaust stream includes a main exhaust passageway adapted to receive the exhaust stream from an engine. A bypass passage includes an inlet and an outlet in communication with the main exhaust passageway. The outlet is located downstream from the inlet. A burner is positioned within the bypass passage for treating the exhaust passing through the bypass passage. A valve is positioned within the main exhaust passageway downstream from the inlet and upstream from the outlet. The valve is operable to vary the exhaust flow through the burner. A controller selectively operates the burner to maintain a desired exhaust temperature downstream of the outlet.

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Ann Arbor, MI, United States of America

Gabriel S Salanta