US 12,252,241 B2
Stability and control augmentation system
Domenico Tafuni, Turin (IT); and Simone Allevi, Appignano del Tronto (IT)
Assigned to MICROTECNICA S.R.L., Turin (IT)
Filed by Microtecnica S.r.l., Turin (IT)
Filed on Oct. 4, 2022, as Appl. No. 17/959,600.
Claims priority of application No. 21213218 (EP), filed on Dec. 8, 2021.
Prior Publication US 2023/0174228 A1, Jun. 8, 2023
Int. Cl. B64C 27/64 (2006.01); B64C 13/42 (2006.01); B64C 27/68 (2006.01)
CPC B64C 27/64 (2013.01) [B64C 13/42 (2013.01); B64C 27/68 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A Stability and Control Augmentation System (“SCAS”) module comprising a SCAS actuator, the SCAS actuator comprising:
a substantially cylindrical hydraulic chamber, wherein the cylindrical hydraulic chamber comprises a first region and a second region;
a piston arranged for linear motion in a first direction and a second direction along an axis of the hydraulic chamber;
wherein the SCAS module comprises:
a valve system for controlling a flow of a hydraulic fluid into the hydraulic chamber, wherein the valve system comprises:
a supply line arranged to provide a first fluid flow path to the first region of the hydraulic chamber and/or a second fluid flow path to the second region of the hydraulic chamber;
a moveable valve member arranged to have a position between a first position and a second position;
wherein when the moveable valve member is in the first position the moveable valve member decreases the pressure of the fluid flowing into the first region of the hydraulic chamber through the first fluid flow path with respect to the pressure of the fluid flowing into the second region of the hydraulic chamber through the second fluid flow path such that the piston is moved in the first direction; and
wherein when the moveable valve member is in the second position the moveable valve member increases the pressure of the fluid flowing into the first region of the hydraulic chamber through the first fluid flow path with respect to the pressure of the fluid flowing into the second region of the hydraulic chamber through the second fluid flow path such that the piston is moved in the second direction;
wherein the SCAS module comprises one supply line and the moveable valve member comprises a conduit that is fluidly connected to said supply line; and
wherein the movable valve member is configured to move linearly between the first position and the second position.