Automobile engines performance

Minimization of pollutants from the combustion chamber. This approach consists of designing the engine with improved fuel-air distribution systems, ignition timing, fuel-air ratios, coolant and mixture temperatures, and engine speeds for minimum emissions. The majority of automobiles sold in the United States now use an electronic sensor/control system to adjust these variables for maximum engine performance with minimum pollutant emissions. 

Power and torque are directly related. An automobile engine develops power when producing a torque on the dnvetrain. Generally, the owner of an automobile is more interested in power than torque. Flowever, technicians in the automobile industry usually evaluate the performance in terms of torque... 

B.K. Cho, Performance of Pt/Al203 catalyst in automobile engine exhaust with oscillatory air/fuel ratio. lEC. Res. 27 30 (1988). 

Nanocomposites are a novel class of materials that offer the attractive advantages of polymers, as they are easy to process and lightweight, but are modified to provide marked enhancements in physical properties and potentially to perform well in launch and space environments. To this point, nanocomposites have found use in sporting goods, such as athletic shoes, and under-the-hood components in automobile engines but can potentially be used in a much broader range of applications including aerospace applications. 

---