I had invented a rotary engine with efficiency of more than 79%. The new rotary engine achieves this by implementing both constant volume heat addition, water injection for cooling and Atkinson Cycle. Implementation of constant volume heat addition is considered to be a holy grail in IC engine design and Constant volume heat addition can provide 50% more power and there by efficiency over existing engines (assuming efficiency of existing engines is 30%) while using same amount of fuel(Ref: ‘Design...