Patent ID: 8151759
Filing Date: 2012-04-10
Classification: F01C,F04C

Abstract:
1. A method of operating an engine, comprising the steps of: providing an orbital engine having a piston which orbits through a toroidal piston chamber and a first rotatable engine valve which moves between an open position wherein an opening of the first rotatable engine valve aligns with the toroidal piston chamber and a closed position wherein a tab of the first rotatable engine valve aligns with the toroidal piston chamber; providing an air inlet adjacent the first rotatable engine valve through which pressurized air is introduced into the toroidal piston chamber; aligning the opening of the first rotatable engine valve with the toroidal piston chamber; passing the piston through the opening; and aligning the opening of the first rotatable engine valve with the air inlet to provide pressurized air to an area of toroidal piston chamber behind the piston when the first rotatable engine valve is in the closed position wherein the tab of the first rotatable engine valve is aligned with the toroidal piston chamber.