The typical supply pressure of compressed air used for starting an engine is about how many kPa?

The typical supply pressure of compressed air used for starting an engine is approximately 2000 kPa. This pressure is sufficient to ensure that the air can effectively engage the engine's starting mechanism. Compressed air systems rely on high pressure to generate the necessary force to crank the engine, especially in larger engines that require more power to start.

Using a pressure in this range ensures reliable operation while also accommodating the mechanical limitations and requirements of the starting systems. Pressures lower than this could result in inadequate cranking speed or torque, which could hinder the engine from starting successfully. On the other hand, excessively high pressures could pose safety risks and may damage engine components if not properly handled. Therefore, 2000 kPa is a commonly accepted standard in the industry for effective starting of engines.