Compact Piston-Cylinder Unit with Integrated Inline Heating for Precision Espresso Brewing

This document discloses a fluid-handling system intended for precise temperature- and pressure-controlled water delivery in espresso brewing applications. The system utilizes a piston-cylinder configuration incorporating an integrated heating element. The design allows for rapid water intake, controlled inline heating, and pressure-regulated dispensing using a mechanically simple, thermally efficient structure inspired by automotive master cylinder fluid control logic.