Mounting Assembly for a Reductant Injector

摘要

A mounting assembly for an injector is located in a curved portion of an exhaust line having an exhaust flow from an upstream end to a downstream end. The mounting assembly includes an indent extending at least partially into the exhaust line curved portion and disposed in the exhaust flow. The downstream wall has an interior surface oriented to substantially face the exhaust line downstream end. A recess extends from the downstream wall in a direction away from the exhaust line downstream end, and a recess aperture is formed in the recess and configured to fluidly communicate with the injector. The recess reduces the amount of exhaust heat reaching the injector tip.

主权项

1. An injector mounting assembly for use with an injector and configured for mounting in a curved portion of an exhaust line having an exhaust flow from an upstream end to a downstream end, the curved portion defining a bend outer curve spaced from a bend inner curve, the injector mounting assembly comprising:
an upstream wall extending at least partially into the exhaust line curved portion and disposed in the exhaust flow; a downstream wall coupled to and located downstream of the upstream wall, the downstream wall extending at least partially into the exhaust line curved portion and disposed in the exhaust flow, the downstream wall having an interior surface facing the exhaust line downstream end; a recess extending from the downstream wall in a direction away from the exhaust line downstream end, the recess being disposed between the bend outer curve and the bend inner curve; and a recess aperture formed in the recess and configured to fluidly communicate with the injector.