公开(公告)号：US20210317851A1

公开(公告)日：2021-10-14

申请号：US16848377

申请日：2020-04-14

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Larry A. Portolese ,  Matthew Arend ,  Paul Futa

IPC: F15B20/00 ,  F02C9/26 ,  F15B13/10

Abstract: An electrohydraulic poppet valve device control system includes an extend valve body, an extend poppet valve, a retract valve body, a retract poppet valve, and an actuator. The actuator is movable to an extend position, a retract position, and a null position, and moves to, or remains in, the null position when electrical power is not supplied to the actuator. In the extend position, the extend poppet valve is in its open position and the retract poppet valve is in its closed position. In the retract position, the extend poppet valve is in its closed position and the retract poppet valve is in its open position. In the null position, the extend poppet valve is in its closed position and the retract poppet valve is in its closed position.