Patent ID: 11905873
Assignee: CATERPILLAR INC.
Field: Environmental technology (Chemistry)
Classification: CPC F  Y | IPC F

Claim 10:
11. An engine exhaust aftertreatment system, comprising:
an internal combustion engine having an intake passage and an exhaust passage;
a turbocharger fluidly connected to the internal combustion engine, the turbocharger including a compressor and a turbine, the compressor being in fluid communication with the intake passage, and the turbine being in fluid communication with the exhaust passage;
a first reductant injector situated downstream of the turbocharger;
a heating element situated downstream of the first reductant injector;
a first container downstream of the heating element, the first container including a multi-functional catalyst (MFC) component and a catalytic diesel particulate filter (DPF) component;
a second reductant injector situated downstream of the first container;
a mixing component and a heating element situated downstream of the second reductant injector;
a second container downstream of the mixing component and the heating element, the second container including a selective catalytic reduction (SCR) component and an Ammonia catalyst (AMOx) component; and
a tailpipe situated downstream of the second container.