In the world of engines, the compression ratio is a core parameter that determines the performance and efficiency of the engine. Generally speaking, when the compression ratio is lower than 10, we call it a low compression ratio engine; And when it exceeds 10, it is considered a high compression ratio engine. The compression ratio has a profound impact on the petrol grade to which the engine is suitable. In the world of engines, the compression ratio is a core parameter that determines the performance and efficiency of the engine. Generally speaking, when the compression ratio is lower than 10, we call it a low compression ratio engine; And when it exceeds 10, it is considered a high compression ratio engine. The compression ratio has a profound impact on the petrol grade to which the engine is suitable.
The magnitude of the compression ratio is closely related to the gasoline grade. Generally speaking, the higher the compression ratio, the higher the gasoline marking requirements of the engine. Engines with high compression ratios that use low-grade gasoline can cause a series of problems, such as "cylinder knocking", increased engine vibration, and uneven driving. These problems not only reduce the performance of the engine, but also shorten its lifespan.
In order to ensure the proper operation of the engine, we should choose the right gasoline according to its compression ratio. Typically, the compression ratio is in the 80 to 10The engine between 0 should be 89 or 92 gasoline; And the compression ratio is more than 100 engine should be 95 gasoline. This ensures that the engine gets the best possible combustion, improving its power and fuel economy.
However, it's worth noting that bigger is not always better. Excessively high compression ratios may lead to abnormal combustion phenomena such as "deflagration" and "surface ignition". Deflagration can cause the engine to overheat, reduce power, increase fuel consumption, and can even cause serious damage. Surface ignition, on the other hand, increases the load on the engine and reduces its life.
In addition, increasing the compression ratio is limited by exhaust pollution regulations. In the pursuit of high-performance engines, we must also take into account the requirements of environmental protection. Therefore, when choosing the right compression ratio, we need to weigh multiple factors such as engine performance, fuel economy, and environmental requirements.