Patent ID: 9149768
Filing Date: 2015-10-06
Classification: B01D,F01N,F02B,Y02A,Y02T

Abstract:
1. A passive mid bed air injection apparatus for an engine of, the mid bed air injection apparatus including: a three way catalyst positioned in an exhaust stream of the engine, the three way catalyst configured to reduce NO an ammonia slip catalyst positioned in the exhaust stream of the engine, the ammonia slip catalyst positioned downstream from the three way catalyst, the ammonia slip catalyst configured to oxidize NH an oxygen input disposed between the three way catalyst and the ammonia slip catalyst such that the oxygen input is configured to deliver air downstream from the three way catalyst and upstream from the ammonia slip catalyst, the oxygen input configured to receive the air from a charged side of a forced induction device and deliver the air to the exhaust stream entering the ammonia slip catalyst; wherein the forced induction device includes a turbocharger.