If an engine has a compression ratio of 7to1 what happens?

Answer 1

If an engine has a compression ratio of 7:1, it means that the cylinder compresses the air-fuel mixture to one-seventh of its original volume during the compression stroke. This moderate compression ratio can lead to a balance between power output and fuel efficiency, but it may limit the engine's performance compared to higher compression ratios, which can improve thermal efficiency and power. Additionally, a lower compression ratio may reduce the risk of knocking or pre-ignition, making it suitable for lower-octane fuels. Overall, the engine's design and intended use will dictate the implications of this compression ratio.