Improvements Possible
Friction too can be reduced by an alternate method of increasing power to moving parts ratio. We can increase no of combustion by a factor of four by increasing the no: of combustion chambers and associated 2 stoppers per combustion chamber by the factor of two,. By increasing no of combustion, power is increasing and but friction producing parts are not increasing that much.
For e.g.: 4 combustion chambers have 8 combustion, 8 combustion chambers have 32 combustions and 16 combustion chambers have 128 combustions per revolution. This will reduce friction since, while friction contributing parts are increasing by 8 folds, power is increasing by 64 times.
End user benefit
Efficiency: - Consumer will get more fuel efficiency due to the implementation of primary and important technology like constant volume heat addition, no ignition before compression stroke ends, lower expansion ratio, better combustion and advanced technology like internal cooling by
water injection.
Driving pleasure: - Since maximum torque (for each power stroke) is 2 to 3 times higher the driver gets better response from engine in the entire rpm range.
Smoother ride: - Since it is rotary and, even its cam is highly balanced, so smoother ride result. Also less vibration of engine means that the maintenance of engine as well as the whole vehicle will be very less.
Less cost of ownership: - Less vibration means less maintenance. Higher efficiency means less fuel conception. These things reduce cost of ownership.
Conclusion
By combining all these factors you can figure out that my engine will be about 2 to 3 times more efficient (Actual efficiency) than piston engine. The new rotary engine has an efficiency of more than 78%.This is more than best fuel cell can offer (best efficiency fuel cell can offer is 70% for alkaline fuel cell and 50% for commonly used PEM fuel cell) Constant volume heat addition can provide 50% more power and there by efficiency while using same amount of fuel. Another 30% improvement in efficiency can be achieved by implementing higher expansion ratio (Atkinson cycle) another 80% improvement by internal cooling by water injection (by reducing 50% of cooling loss and 30% of exhaust loss. ICWI also reduces disassociation loss). Water injection inside combustion chamber for cooling is more suitable to the new concept rotary engine than existing piston engines. Assuming the efficiency of current petrol engine is 30%; new engine can provide efficiency of 78% (50+30+80=160% more efficiency of existing engines).