Patent ID: 8065878
Filing Date: 2011-11-29
Classification: F01L,F01N,F02B,F02D,Y02T

Abstract:
1. A prime mover system comprising: a reciprocating internal combustion engine having at least one intake valve for admitting combustion air into a variable volume combustion chamber with a volume varying between a minimum and maximum and at least a first and second exhaust valve for discharging products of combustion; a first exhaust flow path from said first exhaust valve; a power turbine fluidly connected to said first exhaust flow path and driving a load; a second exhaust flow path from said second exhaust valve; a turbocharger having a turbine fluidly connected to said second exhaust flow path and having a compressor driven by said turbine for pressurizing air for delivery to said at least one intake valve; and a valve actuation system for opening said first exhaust valve to discharging exhaust to said power turbine before said chamber has reached maximum volume after a combustion event and to open said second exhaust valve to discharge exhaust to said turbocharger turbine after said chamber has reached maximum volume wherein said first exhaust path has one of a smaller area and smaller volume than said second flow path.