Patent ID: 8936004
Filing Date: 2015-01-20
Classification: F01C,F02B,F04C,Y02T

Abstract:
1. A rotary piston engine, comprising: at least one torus-shaped cylinder defined by an outer wall formed about an exterior circumferential surface of the torus and a rotor formed about an interior circumferential surface of the torus, said rotor rotating within said cylinder; at least one piston that connects to said rotor; a compression tunnel disposed in said at least one piston for storing compressed gas from within said cylinder; at least one wall valve disposed in the outer wall; intake and exhaust ports disposed through the outer wall and positioned circumferentially fore and aft of said at least one wall valve, wherein said intake port receives ambient air, and said exhaust port releases exhaust gases; an inflow port and an outflow port within said at least one piston, said inflow and outflow ports adapted to fluidly communicate with said compression tunnel; a driveshaft that turns axially in response to said rotor; and at least one spoke that radially connects said rotor to said driveshaft.