Dual-valve-core servo valve

Abstract

A dual-valve-core servo valve includes a first valve seat, a second valve seat, an inner valve core, a first drive assembly, and a second drive assembly; the inner valve core is sealingly and slidably mounted on the first valve seat to form a small-opening-degree servo valve, and the first drive assembly drives the inner valve core to move along the first valve seat to perform opening degree adjustment; and the first valve seat is sealingly and slidably mounted on the second valve seat, such that the first valve seat as a valve core cooperates with the second valve seat to form a large-opening-degree servo valve, and the second drive assembly drives the entire small-opening-degree servo valve to move along the second valve seat to perform opening degree adjustment. Through a two-stage valve core structure, the present disclosure achieves precise control of different flow rates according to different application scenarios.

Dependencies are inferred from the claim text.