Turbocharger mixing manifold for an exhaust aftertreatment system for a locomotive having a two-stroke locomotive diesel engine
AssigneeElectro-Motive Diesel, Inc.
InventorsGary R. Svihla, Deep Bandyopadhyay
Life of this patent
Estimating the term…
Abstract
A turbocharger mixing manifold for an exhaust aftertreatment system for a two-stroke locomotive diesel engine providing for a transition of a non-uniform exhaust gas flow field exiting a turbocharger into a regulated, uniform exhaust gas stream with minimal aerodynamic losses and an even distribution (mixing) of hydrocarbons in liquid, gas or burning states in order to ensure optimal performance of the attached exhaust aftertreatment system.
Claims20
A turbocharger mixing manifold for promoting a uniform mixture and distribution of exhaust gas into a filtration system of an exhaust aftertreatment system for reducing pollutants in exhaust gas expelled from a locomotive diesel engine, the turbocharger mixing manifold comprising:
- a mixing manifold intake coupled to a turbocharger and adapted to receive exhaust gas expelled from the locomotive engine via the turbocharger;
- a mixing manifold outlet for directing the exhaust gas into said filtration system of said exhaust aftertreatment system;
- a mixing chamber, sized and shaped to promote a stable and uniform flow field of exhaust gas allowing for a thorough mixing of exhaust gas and for even distribution of the exhaust gas to said filtration system via said mixing manifold outlet;
- and
- a heating device and DOC/DPF dosers, wherein the heating device includes an outlet positioned so as to introduce the heated exhaust gas downstream of the flow field of the exhaust gas entering said mixing chamber at said mixing manifold intake but upstream from the location of said DOC/DPF dosers for injecting fuel into said mixing chamber.
A turbocharger mixing manifold for promoting a uniform mixture and distribution of exhaust gas into a plurality of inline filtration systems of an exhaust aftertreatment system for reducing pollutants in exhaust gas expelled from a locomotive diesel engine, the turbocharger mixing manifold comprising:
- a mixing manifold intake coupled to a turbocharger and adapted to receive exhaust gas expelled from said locomotive engine via said turbocharger;
- a plurality of mixing manifold outlets for directing exhaust gas into the downstream components of said exhaust aftertreatment system, including each one of said plurality of inline filtration systems;
- a mixing chamber, sized and shaped to promote a stable and uniform flow field of exhaust gas allowing for a thorough mixing of exhaust gas and for even distribution of the exhaust gas to each one of said plurality of inline filtration systems via said plurality of mixing manifold outlets;
- and
- a heating device and DOC/DPF dosers, wherein the heating device includes an outlet positioned so as to introduce the heated exhaust gas downstream of the flow field of the exhaust gas entering said mixing chamber at said mixing manifold intake but upstream from the location of said DOC/DPF dosers for injecting fuel into said mixing chamber.
Dependencies are inferred from the claim text.