What is the engine cylinder pressure?

[LeCody]

Automobile engine cylinder pressure is around 1000kpa. Generally, gasoline engines are around 1000kpa, diesel engines are around 2000kpa, most fuel injection engine cylinder pressures are between 1200~1400kPa, and a few high compression ratio engines have cylinder pressures above 1700kPa. A cylinder is a piston in the automobile combustion chamber that is driven by the pressure or expansion force of the working fluid. The classification of cylinders is as follows: 1. Single-acting cylinder: Only one end has a piston rod, and air is supplied from one side of the piston to generate air pressure, which pushes the piston to produce thrust for extension, and returns by spring or self-weight. 2. Double-acting cylinder: Air is alternately supplied from both sides of the piston, and force is output in one or two directions. 3. Diaphragm cylinder: A diaphragm is used instead of a piston, and force is output in only one direction, with spring reset. It has good sealing performance but a short stroke.