How does the compressor output pressure of an internal supercharger compare to the manifold pressure?

The compressor output pressure of an internal supercharger is designed to match the manifold pressure in an engine. Internal superchargers are driven by the engine itself, allowing them to compress the intake air and increase its pressure before it enters the combustion chamber. This process enhances the engine's performance by improving air density and combustion efficiency.

In normal operating conditions, the output of the supercharger is regulated to ensure it sufficiently raises the manifold pressure, allowing for optimal engine performance without exceeding the limits that could lead to engine knock or damage. Therefore, the typical operating state of an internal supercharger aligns the output pressure with the manifold pressure, ensuring consistent performance while avoiding excess pressure that could be detrimental to engine health.

Other possibilities, such as pressure being less than or greater than manifold pressure, do not typically occur under normal circumstances with a properly functioning supercharger. If the supercharger were performing inefficiently or in an incorrect state, that might allow for variations, but generally, it is intended that the compressor output matches the manifold pressure.