PIEZOELECTRICALLY DRIVEN VALVE SYSTEM FOR HIGH-TEMPERATURE

摘要

The present specification relates to a piezo-driven valve system for a high-temperature environment capable of providing a lever which does not change in rigidity regardless of temperature changes instead of a conventional lever which can change in rigidity in response to the changes in operation temperature. The piezo-driven valve system according to a disclosed embodiment of the present invention includes: piezoelectric actuator; a lever which amplifies the electric potential generated in the piezoelectric actuator; a hinge which rigidly fixes a part of the lever; and a spool which controls the flow rate according to the electric potential amplified by the lever. The lever can include a shape memory alloy.