What are the types of reciprocating steam engine?

Reciprocating steam engines can be categorized into several types, primarily based on their configuration and design. The main types include single-acting engines, where steam acts on one side of the piston, and double-acting engines, which use steam on both sides for more efficient power generation. Other variations include compound engines, which utilize multiple cylinders at different pressures to improve efficiency, and oscillating cylinder engines, where the cylinder pivots instead of the piston moving linearly. These designs allow for various applications in industrial and maritime settings.