Delphi Technologies, Inc.

Gm Global Technolgoy Operations, Inc.

Tenneco Automotive Operating Company Inc.

Katcon Global S.a.

Stephen Joe Myers

Michael Ralph Foster

Jeffrey B Hardesty

Paul E Jankowski

Alan Gerard Turek

Robert Anthony Lawrence

Ruth Ann Latham

John A Horton

Steven A Freis

John Eric Kreucher

Barry Odell Christenson

Dana Michael Serrels

Dana M Serrels

Charles Scott Nelson

Michael A Golin

John Boehnke

William Victor Alcini

Gabriel S Salanta

Carlos A Gutierrez

Mark Kluesner

Roger Eugene Buck

Albert Hunter Mayfield

Eric J D'Herde

Michael Joseph Torzewski

Eric C Schultz

Fong Z Li

Gordon J Rutland

Eric J Lesher

Theodore Rogers Turner, Jr

Walter Jenkins

Brian M Bibb

Roger Kurt Starke

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

A method is provided for installing a multi-layer mat () in an exhaust gas aftertreatment or acoustic device. The method includes the steps of wrapping the mat () around an inner surface of the device along the same plane for at least a complete wrap around the inner surface; subsequently wrapping the mat () around the already completed wrap such that each of the successive wraps of the mat () are offset a constant distance from the plane of the previous wrap; a final wrap of the mat () wherein the mat is wrapped along a final plane for at least a complete wrap around the catalyst; and installing the mat () in the device () after the wrapping steps.

Method of installing a longitudinally offset multi-layer mat in an exhaust gas aftertreatment or acoustic device

Method of installing a multi-layer batt, blanket or mat in an exhaust gas aftertreatment or acoustic device

An outer housing and method of forming a mounting boss therein, the outer housing comprising: an elongated housing portion defining an inlet opening and an outlet opening, the elongated housing portion having a thickened area defined by an overlapping portion of the elongated housing; a sensor mounting boss formed in the overlapping portion with only displaced portions of the overlapping portion; and a plurality of threads disposed in the sensor mounting boss.

Gas sensor mounting boss and method of making

Disclosed herein is a method of making a catalytic converter; forming a shell having a welding deformation detail; inserting and housing a catalyst substrate inside the shell, wherein a mat support material is disposed between the shell and the catalyst substrate; welding an end cone having a flange to the shell by applying a deformation force to the flange causing deformation of welding deformation detail.

Apparatus and method for manufacturing a catalytic converter

An exhaust system comprising a catalytic converter unit, a bushing element provided in a shell wall of the catalytic converter unit, and an oxygen sensor positioned within exhaust flow of the catalytic converter unit and extending through the bushing element and having a connector disposed in intimate contact with the bushing element, and a method of positioning such an oxygen sensor in an exhaust system component.

Catalytic converter with integral oxygen sensor

An embodiment of a method for producing a gas treatment device includes disposing a mat support material about a substrate to form a subassembly; passing at least a portion of the subassembly into a main body portion of a housing that has a first portion having a decreasing internal diameter from a first end to the main body portion, the main body portion extending from the first portion.

Gas treatment device and system, and method for making the same

A variable flow regulator assembly includes a first stationary exhaust pipe, a second stationary exhaust pipe concentrically disposed within the first stationary exhaust pipe, and a movable exhaust pipe concentrically disposed between the first and second stationary exhaust pipes. The first stationary exhaust pipe includes one or more interference tabs concentrically and circumferentially fitted about its interior surface. The movable exhaust pipe includes one or more interference tabs concentrically and circumferentially fitted about its exterior surface. The interference tabs complimentarily interact and restrict the movement of the variable flow regulator so that the flow maldistribution of the exhaust gas stream entering the catalytic converter can be variably controlled.

Variable flow regulator for use with catalytic converters

A variable flow regulator assembly comprises a first stationary exhaust pipe, a second stationary exhaust pipe concentrically disposed within the first stationary exhaust pipe, and a movable exhaust pipe concentrically disposed between the first and second stationary exhaust pipes. The first stationary exhaust pipe includes one or more interference tabs concentrically and circumferentially fitted about its interior surface. The movable exhaust pipe includes one or more interference tabs concentrically and circumferentially fitted about its exterior surface. The interference tabs complimentarily interact and restrict the movement of the variable flow regulator so that the flow maldistribution of the exhaust gas stream entering the catalytic converter can be variably controlled.

A gas treatment system comprises a variable flow regulator assembly placed in operable and fluid communication with a shell of a gas treatment device. The variable flow regulator assembly comprises two or more conduit portions comprising a first portion and a second portion, wherein the second portion has a coefficient of thermal expansion greater than a first coefficient of thermal expansion of the first portion. The variable flow regulator assembly structurally changes shape to alter the flow maldistribution of an exhaust gas stream into the gas treatment device when light off is achieved.

Variable flow regulator for use with gas treatment devices

A strengthened thin-walled catalytic converter substrate includes thin perimeter walls and thin interior walls defining cells and a catalyst washcoat selectively disposed on the substrate. Washcoat thickness is increased in those cells having the most impact on final catalyst strength, typically the outer cells defined by the perimeter walls. A method for maximizing overall catalyst strength with minimal substrate thermal mass includes selectively applying washcoat based on desired substrate strength and converter assembly method.

Stronger catalyst using selective washcoat location

An exhaust systems converter comprising an endplates, with an annular rings, positioned around both annular sides of a catalyst, an intumescent mat support wrapped around the catalyst and the annular rings, and an oversized shell which is sized to the endplates and welded in place.

Converter with shell sized to endplates

Disclosed herein is an apparatus and method for manufacturing an exhaust emission control device, and the exhaust emission control device formed thereby. The method of manufacturing an exhaust emission control device, comprises: disposing a viscous-elastic material around at least a portion of a substrate to form a wrapped element. The wrapped element is compressed at a first compression rate and at a second compression rate that is slower than the first compression rate, and the wrapped element is introduced into a housing.

Apparatus and method for forming an exhaust emission control device, and the device formed thereby

A relieved support material for a catalytic converter has a strip of support material with one or more relief cuts. This is used to insulate a segment of catalyst along with one or more inner end-cones positioned at the beginning and end of the converter. The support material is wrapped around the catalyst and the one or more inner end-cones. The wrapped support material is then covered with an outer-layer shell.

Growing community of inventors

Owosso, MI, United States of America

Stephen Joe Myers