Patent ID: 8839761

Claim:
A process of extracting work out of a rotary engine comprising: drawing a fresh air charge into a first rotary unit; compressing the fresh air charge into a compressed air charge and a remaining compressed air charge in the first rotary unit; transmitting the compressed air charge from the first rotary unit to a second rotary unit; compressing the compressed air charge into a compound compressed air charge in the second rotary unit; injecting a first fuel into the compound compressed air charge in the second rotary unit; combusting the first fuel with the compound compressed air charge into an exhaust in the second rotary unit; expanding the exhaust in the second rotary unit; transmitting the exhaust from the second rotary unit into the remaining compressed air charge in the first rotary unit; injecting a second fuel into the exhaust and the remaining compressed air charge in the first rotary unit; and combusting the second fuel with the remaining compressed air charge and the exhaust within the first rotary unit to initiate an afterburning mode.