238. ガソリンエンジン
ガソリンエンジンは、通常、空気とガソリンの混合気をスパークプラグで点火する内燃機関です。そのため火花点火式エンジンとも呼ばれます。
燃焼で放出されたエネルギーを車両を動かす機械的動力へ変換します。現代のガソリンエンジンは電子制御と触媒コンバーターなどの排出ガス制御装置を用いて効率向上と有害排出物の削減を図ります。
How does a petrol engine work?
A petrol engine draws or injects fuel and air into the engine, compresses the mixture and ignites it using a spark plug. The resulting combustion produces pressure that moves the pistons and generates mechanical power.
What is the difference between a petrol and diesel engine?
A petrol engine normally uses spark ignition, while a diesel engine uses compression ignition. The two engine types also differ in fuel, combustion characteristics and emissions-control systems.
What emissions can a petrol engine produce?
Petrol-engine exhaust can contain pollutants such as carbon monoxide, hydrocarbons, nitrogen oxides and, particularly with some direct-injection engines, particulate matter. Modern emissions-control systems are designed to reduce these pollutants.

交通ルール
スイス