Power plants – Internal combustion engine with treatment or handling of... – Material from exhaust structure fed to engine intake
Patent
1992-02-21
1993-10-19
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Material from exhaust structure fed to engine intake
55302, 55DIG30, 60288, 60311, F01N 302
Patent
active
052534766
ABSTRACT:
A simple, low cost and reliable total particulate (soot, polynuclear aromatic and aliphatic hydrocarbons and ash) control system is disclosed that separates the particulate burning process from the body of a particulate filter and that needs very little compressed air to regenerate. The system can retrofit any existing diesel-powered equipment. The particulate control system includes a stationary ceramic monolith trap that is regenerated by one or more pulses of high-pressure and low-velocity air that move in the opposite direction of the engine exhaust flow through the trap. The particulate control system in a single trap embodiment conducts the engine exhaust to the atmosphere during regeneration periods, and in a dual trap embodiment, conducts the engine exhaust through two traps that are operated alternatively such that while one is filtering the exhaust the other is being regenerated, and vice versa.
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Kahlil Najib
Levendis Yiannis A.
Hart Douglas
Northeastern University
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