What is vacum engine?

A vacuum engine or vacuum motor is a type of engine that uses atmospheric pressure to move a piston or rotor inside a cylinder. These engines work based on the principle of atmospheric pressure, which is the force exerted by the weight of air on objects at or near the Earth's surface.

Vacuum engines are very similar in design to steam engines, but instead of using steam to move the piston, they use the pressure differential between the atmosphere and a vacuum to generate force. The process starts by creating a vacuum inside a cylinder, and then atmospheric pressure causes the piston or rotor to move forward.

These engines can be used for a variety of applications, such as powering vehicles, pumps, and other mechanical systems. They have some advantages over traditional internal combustion engines, including being quieter and producing less pollution. However, they also have some limitations, such as requiring a large vacuum pump and being less efficient than other types of engines. As a result, vacuum engines are not commonly used in modern technology, except for some specific applications.