Exploring the World of Port Plates in Engine and Hydraulic Systems

What is the function of a port plate in a cylinder-piston assembly?

A. Relief valve
B. Port plate
C. Bleeder valve
D. Rod wiper

Answer:

The correct term for a tapered plug attached to a piston or rod that fills an exit hole on either end of the cylinder is a port plate, used to control fluid or gas flow in engines and hydraulic systems.

The correct answer is B. Port plate. A port plate is a tapered plug attached to a piston or rod that fills an exit hole on either end of the cylinder. This component is vital in a cylinder-piston assembly as it serves to control the flow of fluids or gases into and out of the cylinder, as seen in various types of engines and hydraulic systems. It is not a relief valve, which is designed to relieve excess pressure; nor is it a bleeder valve, which is used to remove trapped air from a system; or a rod wiper, which is meant to clean the rod in a hydraulic or pneumatic system.