Patent ID: 7040094
Filing Date: 2006-05-09
Classification: F01N,F02B,Y02T

Abstract:
1. A combustion engine apparatus, comprising: fuel, said fuel made up of a first portion and a second portion, a first stage piston engine for combusting said first portion of said fuel in a first stage, said first stage piston engine producing piston engine exhaust gases with said piston engine exhaust gases containing said second portion of said fuel; a second stage turbine engine for combusting said second portion of said fuel contained in said piston engine exhaust gases in a second stage at stoichiometric conditions, said second stage turbine engine producing turbine engine exhaust gases; a supercharger for supercharging said piston engine using said turbine engine exhaust gases, and means for directing said turbine exhaust gases from said second stage turbine engine into said supercharger.