What is a Naturally Aspirated Engine?

[MacAriel]

Naturally aspirated engine refers to the air intake method of an engine. Naturally aspirated means the engine does not have any forced induction equipment. It relies entirely on the vacuum created by piston movement within the engine to draw in air and the combustible mixture. Below are relevant introductions: 1. Naturally Aspirated: Naturally aspirated (English: Normally-Aspirated) is a type of automobile air intake, which is a form where atmospheric pressure forces air into the combustion chamber without any supercharger. Most ordinary cars use naturally aspirated engines, and later, to increase engine power and efficiency, forced induction was introduced. 2. Advantages: Naturally aspirated engines have lower combustion efficiency, but their output is more linear. Naturally aspirated engines offer better smoothness in power delivery and more direct response compared to forced induction engines.