Invention Grant
- Patent Title: Positioning valve control system
-
Application No.: US17716584Application Date: 2022-04-08
-
Publication No.: US12092236B2Publication Date: 2024-09-17
- Inventor: David J. Zawilinski , Scott W. Simpson , Robert B. Goodman
- Applicant: Hamilton Sundstrand Corporation
- Applicant Address: US NC Charlotte
- Assignee: Hamilton Sundstrand Corporation
- Current Assignee: Hamilton Sundstrand Corporation
- Current Assignee Address: US NC Charlotte
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F16K31/04
- IPC: F16K31/04 ; F15B11/028 ; F15B21/042

Abstract:
A valving system has an actuator member connected to move with an actuator piston and change the position of a valve member. There is a smaller face fluid chamber acting on a small area piston face, and a larger face fluid chamber acting on a larger face of the actuator piston. The torque motor has an armature and a flapper caused to move by current received at the armature. The flapper moves between two fluid ports to control the pressure in the larger face chamber. The flapper further has a positioning extension engaging a first feedback spring operable between it and a forward face of the actuator piston and providing a spring force in combination with a spring force from the positioning extension. A control is operable to provide current to the armature to control the fluid received in the larger face chamber. The controller is programmed to associate the current supplied to the armature to an actual position of the valve member. A method is also disclosed.
Public/Granted literature
- US20230323976A1 POSITIONING VALVE CONTROL SYSTEM Public/Granted day:2023-10-12
Information query