Externally mounted in-line exhaust gas valve

A valve assembly for an exhaust system of a vehicle, the valve assembly comprising:

• a housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet;
• a valve flap disposed in the housing and rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted;
• and
• a mass damper disposed within the exhaust gas passageway, the mass damper attached to the valve flap,
• wherein the mass damper is shielded from the exhaust gas flowing through the exhaust gas passageway when the valve flap is in the second position,
• wherein the mass damper includes end portions and an intermediate portion disposed between the end portions, and wherein the intermediate portion has a thickness that is greater than a thickness of the end portions,
• wherein the intermediate portion includes a planar surface having a groove formed therein.

A valve assembly for an exhaust system of a vehicle, the valve assembly comprising:

• a housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet;
• a heat shield attached to the housing;
• a valve flap disposed in the housing and rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted;
• and
• a first pad positioned between a first surface of the valve flap and the heat shield when the valve flap is in the second position,
• wherein the first pad is shielded from the exhaust gas flowing through the exhaust gas passageway when the valve flap is in the second position,
• wherein the valve flap has an indentation formed therein and wherein the first pad is received in a recess formed by the indentation.

A valve assembly for an exhaust system of a vehicle, the valve assembly comprising:

• a housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet;
• a heat shield attached to the housing;
• a valve flap disposed in the housing and rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted;
• and
• a first pad positioned between a first surface of the valve flap and the heat shield when the valve flap is in the second position,
• wherein the first pad is shielded from the exhaust gas flowing through the exhaust gas passageway when the valve flap is in the second position,
• the valve assembly further comprising a second pad and a second surface of the valve flap that is opposite the first surface, the second pad being positioned between the second surface and the housing when the valve flap is in the first position, wherein the second pad includes a first portion and a second portion that is movable relative to the first portion, and wherein the periphery of the second pad is at the second portion.

A valve assembly for an exhaust system of a vehicle, the valve assembly comprising:

• a housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet;
• a heat shield attached to the housing;
• a valve flap disposed in the housing and rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted;
• and
• a first pad positioned between a first surface of the valve flap and the heat shield when the valve flap is in the second position,
• wherein the first pad is shielded from the exhaust gas flowing through the exhaust gas passageway when the valve flap is in the second position,
• the valve assembly further comprising a second pad and a second surface of the valve flap that is opposite the first surface, the second pad being positioned between the second surface and the housing when the valve flap is in the first position,
• wherein the second pad includes a first aperture extending therethrough and a recess formed in a surface and around the first aperture.

A valve assembly for an exhaust system of a vehicle, the valve assembly comprising:

• a housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet;
• a heat shield attached to the housing;
• a valve flap disposed in the housing and rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted;
• and
• a first pad positioned between a first surface of the valve flap and the heat shield when the valve flap is in the second position,
• wherein the first pad is shielded from the exhaust gas flowing through the exhaust gas passageway when the valve flap is in the second position,
• wherein the heat shield is attached to an outside surface of the housing and includes an indentation that extends into the exhaust gas passageway, and wherein the first pad is configured to contact the indentation when the valve flap is in the second position to limit rotation of the valve flap.

A valve assembly for an exhaust system of a vehicle, the valve assembly comprising:

• a housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet;
• a heat shield attached to the housing;
• a valve flap disposed in the housing and rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted;
• and
• a first pad positioned between a first surface of the valve flap and the heat shield when the valve flap is in the second position,
• wherein the first pad is shielded from the exhaust gas flowing through the exhaust gas passageway when the valve flap is in the second position,
• the valve assembly further comprising a second pad and a second surface of the valve flap that is opposite the first surface, the second pad being positioned between the second surface and the housing when the valve flap is in the first position,
• wherein the first pad and the second pad are made of a wire-mesh material.

A valve assembly for an exhaust system of a vehicle, the valve assembly comprising:

• a housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet;
• a valve flap disposed in the housing and rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted;
• a first pad attached to a first surface of the valve flap;
• a second pad attached to a second surface of the valve flap that is opposite the first surface, the second pad has a periphery that extends past a periphery of the valve flap and contacts the housing when the valve flap is in the first position;
• a mass damper attached to the first surface of the valve flap;
• and
• a fastener extending through first, second and third apertures in the valve flap, the second pad and the mass damper, respectively, to attach the valve flap, the second pad and the mass damper to each other.