Final answer:
A cylinder deactivation system helps conserve fuel and reduce CO2 emissions by deactivating cylinders in an engine when full power is not needed. This contributes to better fuel economy and reduced pollution.
Step-by-step explanation:
A cylinder deactivation system allows an engine to conserve fuel and reduce emissions by turning off some of its cylinders when full power is not needed. This technology is part of modern engine technologies such as computer controls, variable valve timing, and gasoline direct injection to improve fuel economy and reduce CO₂ emissions. By operating on fewer cylinders, the engine reduces its fuel consumption, leading to fewer emissions being released. When full engine power is not required, this system can significantly contribute to the efficiency of a vehicle without compromising its ability to deliver power when needed.
A catalytic converter can deactivate cylinders so the engine conserves fuel and reduces emissions. It works by using a catalyst, typically platinum, to promote chemical reactions that convert harmful pollutants into less harmful substances. For example, it can convert carbon monoxide and hydrocarbons into carbon dioxide and water, and nitrogen oxides into nitrogen and oxygen.
This technology is commonly used in gasoline-burning engines to reduce emissions of pollutants such as carbon monoxide, nitrogen oxides, and hydrocarbons. By deactivating cylinders, the engine can operate more efficiently, which results in fuel conservation and reduced emissions. This is especially beneficial in situations where lower power output is acceptable, such as during cruising or idle.