Patent ID: 7950231

Claim:
A method of operating a prime mover system comprising the steps of: operating an air breathing fuel consuming internal combustion engine having an air intake manifold and an exhaust manifold for products of combustion; receiving the products of combustion from said engine and passing them over at least one turbine of a turbocharger, said turbine being connected to a compressor for pressurizing air to the intake of said engine; receiving the products of combustion from said turbine and passing them through an exhaust aftertreatment device to at least collect carbon particulates; receiving the products of combustion from said exhaust aftertreatment device and passing them across a power turbine for extracting energy; powering an engine accessory with said power turbine whereby power is available to said engine during regeneration; selectively passing the products of combustion from said power turbine to the intake of said engine upstream of said compressor, and burning off carbon particles from said exhaust aftertreatment device thereby increasing the energy in said products of combustion.