Patent ID: 6338328
Filing Date: 2002-01-15
Classification: F02B

Abstract:
A crankcase inducted self-supercharging four-cycle internal combustion engine comprising:a) at least one cylinder pair having two pistons arranged in a 360-degree crank throw, whereby both pistons in said cylinder pair rise and fall together, each piston being operably installed in a cylinder; b) a crankcase, operably attached to said cylinder pair, said crankcase having an inlet port and an outlet port; c) a means for drawing a quantity of air into said crankcase on the upstroke of the pistons; e) a means for injecting said quantity of air from said crankcase into one of the cylinders of said cylinder pair; f) an intake manifold, attached to said cylinder pair; and g) a two-way valve operably installed in said intake manifold, wherein when said two-way valve is in a first position, the cylinder pair is naturally aspirated, and when said two-way valve is in said second position, air entering into said intake manifold is directed into said crankcase.