Patent ID: 8001771

Claim:
A work machine comprising: a first air breathing, fuel consuming internal combustion (IC) engine providing a power output and producing products of combustion, said first IC engine having a first exhaust aftertreatment device receiving products of combustion from said first IC engine and requiring periodic regeneration in response to a first aftertreatment device parameter; a second air breathing, fuel consuming internal combustion (IC) engine providing a power output and producing products of combustion, said second IC engine having a second exhaust aftertreatment device receiving products of combustion from said second IC engine and requiring periodic regeneration in response to second aftertreatment device parameter; first and second devices respectively mechanically connected to said first and second IC engines, said first and second devices being configured to each drive at least one load; and a controller configured for selective bi-directional transfer of power between said first and second devices in response to said first and second aftertreatment device parameters to selectively increase the load on one of the first and second IC engine for regenerating the aftertreatment receiving products of combustion from said IC engine.