Abstract: An engine system includes three different types of motors with complementary characteristics, which together provide increased performance and efficiency. The engine system generally includes a fuel-consuming engine (such as an internal combustion engine), an electric motor and an air motor. The air motor is powered by compressed air stored in air tanks. The air tanks can store energy much more quickly and efficiently than electric batteries. Therefore, the air tanks are a more efficient way of recouping the energy of braking the vehicle. The air tanks can be used to power the vehicle, especially at cruising speed, and can recharge the batteries over time. The three motors are complementary to one another in several ways which provide improved performance and efficiency.

Abstract: An engine system includes three different types of motors with complementary characteristics, which together provide increased performance and efficiency. The engine system generally includes a fuel-consuming engine (such as an internal combustion engine), an electric motor and an air motor. The air motor is powered by compressed air stored in air tanks. The air tanks can store energy much more quickly and efficiently than electric batteries. Therefore, the air tanks are a more efficient way of recouping the energy of braking the vehicle. The air tanks can be used to power the vehicle, especially at cruising speed, and can recharge the batteries over time. The three motors are complementary to one another in several ways which provide improved performance and efficiency.