Patent ID: 6679351
Filing Date: 2004-01-20
Classification: F01N,F02D,F02M,Y02T

Abstract:
An air turbine apparatus, comprising:a housing defining an expansion chamber; an inlet in said housing, said inlet having a diameter less than said expansion chamber; an outlet in said housing; an airfoil positioned proximate to said inlet to directly receive incoming gases, said airfoil including an aperture extending longitudinally therethrough and aligned with said inlet and outlet, said airfoil positioned relative to said inlet and outlet and one another to define first and second air flow paths, said first air flow path being straight and passing through said inlet, through said aperture of said airfoil, and through said outlet, said second air flow path passing around said airfoil and then combining with said first air flow path between said airfoil and said outlet, wherein the gases flowing in said second air flow path and passing around said airfoil do so at a higher velocity and lower pressure than gases flowing through said airfoil.