Abstract: An exhaust system for a machine is disclosed. The exhaust system may have a diffuser configured to receive exhaust from an engine. The exhaust system may further have a plurality of dosers associated with the diffuser and configured to inject fuel into the diffuser. The exhaust system may also have a controller configured to selectively control an amount of fuel injected by each of the plurality of dosers based on a velocity of the exhaust adjacent to each doser. In addition, the exhaust system may have an after-treatment component fluidly connected downstream of the diffuser and configured to heat the exhaust by oxidizing the injected fuel.

Abstract: A heater tube for an exhaust system is disclosed. The heater tube may have an open end to receive heated exhaust from a pre-heater. The heater tube may have a closed end located opposite the open end. The heater tube may also have an outer surface extending from the open end to the closed end. The heater tube may further have a fin attached to the outer surface. In addition, the heater tube may have an opening disposed on the outer surface to discharge the heated exhaust.

Abstract: An exhaust system for a machine is disclosed. The exhaust system may have a diffuser configured to receive exhaust from an engine. The exhaust system may further have a plurality of dosers associated with the diffuser and configured to inject fuel into the diffuser. The exhaust system may also have a controller configured to selectively control an amount of fuel injected by each of the plurality of dosers based on a velocity of the exhaust adjacent to each doser. In addition, the exhaust system may have an after-treatment component fluidly connected downstream of the diffuser and configured to heat the exhaust by oxidizing the injected fuel.

Abstract: A heater tube for an exhaust system is disclosed. The heater tube may have an open end to receive heated exhaust from a pre-heater. The heater tube may have a closed end located opposite the open end. The heater tube may also have an outer surface extending from the open end to the closed end. The heater tube may further have a fin attached to the outer surface. In addition, the heater tube may have an opening disposed on the outer surface to discharge the heated exhaust.

Abstract: An exhaust system is disclosed. The exhaust system may have a plenum configured to receive exhaust from an engine. The exhaust system may also have a first filter bank having a plurality of filter assemblies and configured to receive a first flow of exhaust from the plenum. The exhaust system may further have a second filter bank having a plurality of filter assemblies and configured to receive a second flow of exhaust from the plenum. In addition, the exhaust system may have a distribution device located between the first and second filter banks. The distribution device may have a plurality of perforations. A porosity of the distribution device may be configured to selectively distribute exhaust to the plurality of filter assemblies.

Abstract: An exhaust system for a machine is disclosed. The exhaust system may have a first conduit configured to receive a first portion of an exhaust flow from an engine. The exhaust system may further have a second conduit configured to receive a remaining portion of the exhaust flow from the engine. The exhaust system may also have a diffuser connected at downstream ends of the first and the second conduits. In addition, the exhaust system may have an after-treatment component fluidly connected downstream of the diffuser. The exhaust system may also have a pre-heater configured to heat exhaust in the second conduit.