Abstract:
A muffler for a vehicle exhaust system includes a plastic outer shell that defines an internal cavity. A metal pipe extends through the internal cavity from an inlet to an outlet. A Helmholtz chamber is formed within the plastic outer shell to attenuate a desired frequency.
Abstract:
A vehicle exhaust component includes a first exhaust component, a second exhaust component downstream of the first exhaust component, and a mixer that connects an outlet of the first exhaust component to an inlet to the second exhaust component. The mixer includes a first housing portion with a first connection interface and a second housing portion with a second connection interface. The first housing portion is attached to the outlet of the first exhaust component and the second housing portion is attached to the inlet of the second exhaust component. The first and second connection interfaces are connectable to each other in one of a plurality of different connection orientations such that the first and second exhaust components can be positioned at any of a plurality of different mounting orientations relative to each other.
Abstract:
An exhaust component assembly includes a housing having at least one mount area configured to be attached to another exhaust component. A primary heat shield is attached to the housing and includes at least one open area at the mount area. A secondary heat shield positioned adjacent to the primary heat shield to at least partially cover the mount area. A method of assembling the primary and secondary heat shields to the housing of the exhaust component assembly is also disclosed.
Abstract:
An exhaust component assembly includes a heat shield and a mounting structure to attach the heat shield to an outer housing of an exhaust component. The mounting structure includes a primary insulator located between an outer surface of the outer housing and an inner surface of the heat shield, and at least one secondary insulator positioned adjacent the primary insulator. The primary insulator comprises a sheet of material including at least one encapsulated insulating cavity.
Abstract:
A vehicle exhaust component assembly includes a first exhaust component, a second exhaust component downstream of the first exhaust component, and an injection system configured to inject a reducing agent into engine exhaust gases upstream of the second exhaust component. A mixer connects an outlet of the first exhaust component to an inlet to the second exhaust component. The mixer includes an outer housing that is configured to direct a mixture of the reducing agent and the engine exhaust gases into the second exhaust component. The mixer also includes at least one insulation feature that is configured to reduce heat lost at the outer housing.
Abstract:
An exhaust component assembly includes a heat shield and a mounting structure to attach the heat shield to an outer housing of an exhaust component. The mounting structure comprises a primary insulator located between an outer surface of the outer housing and an inner surface of the heat shield and at least one secondary insulator positioned adjacent to the primary insulator. A method of assembling the heat shield to the outer housing of the exhaust component assembly is also disclosed.
Abstract:
An exhaust component assembly includes a heat shield formed from a composite material and a mounting structure that attaches the heat shield to an outer housing of an exhaust component. The mounting structure comprises an insulator located between an outer surface of the outer housing an inner surface of the heat shield. A method of assembling the composite heat shield to the outer housing of the exhaust component assembly is also disclosed.