Exhaust vibration decoupling connector

摘要

An exhaust-vibration decoupling connector has an inlet tube ( 1 ) extended downstream from a decoupler inlet ( 2 ) to an inlet-tube step ( 22 ). The inlet-tube step includes a radially inward extension of the inlet tube to a damper seat ( 23 ) that includes further downstream extension of the inlet tube. An outlet tube ( 4 ) is extended upstream from a decoupler outlet ( 5 ) to an outlet-tube step ( 24 ) that includes a radially inward extension of the outlet tube to proximate an outside surface of the damper seat. A vibration damper is positioned removably in a damper fixture ( 3 ) that includes the damper seat intermediate the inlet-tube step and the outlet-tube step proximate midway between the decoupler inlet and the decoupler outlet. Surrounding the vibration damper, a decoupler bellows ( 7 ) has an upstream bellows attachment ( 9 ) proximate an outside periphery of the inlet tube and a downstream bellows attachment ( 10 ) proximate an outside periphery of the outlet tube. Enclosing an outside periphery of the decoupler bellows is a flex cover ( 13 ) that is extended from proximate the decoupler inlet to the decoupler outlet. The decoupler inlet is articulated for attachment to an exhaust-outlet structure ( 33 ) on an engine. The decoupler outlet is articulated for attachment to an exhaust-treatment structure ( 34 ).