Abstract: A thermal modulating control valve for providing bleed air for aircraft anti-icing purposes includes a valve chamber with an inlet for high temperature bleed air and an outlet for temperature modulated bleed air for aircraft systems. A modular valve mechanism is mounted in a chamber for regulating the flow of hot bleed air to the outlet in response to the temperature of the supply. The valve includes a first wall section having a plurality of spaced apart flow orifices or openings in one face and fixedly secured adjacent the inlet end of the chamber, and a second confronting wall section having a plurality of spaced apart flow orifices or openings provided to directly confront the orifices in the first wall section. The wall sections are movable relative to one another in response to the temperature of the bleed air at the inlet end so as to displace the respective sets of flow orifices in and out of registry for controlling the flow of bleed air supplied to the outlet of the valve.

Abstract: A thermal modulating control valve adapted for supplying thermal modulated bleed air for an aircraft anti-icing system comprises a valve body having an inlet adapted to be supplied with bleed air from a separate source and an anti-icing outlet for supplying thermal modulated bleed air for operating an aircraft anti-icing system. The thermal modulating valve is mounted in the body in communication with the inlet and outlet for supplying bleed air at a regulated flow rate which is reduced in response to increased temperature of the bleed air supplied to the valve. The thermal modulating valve includes at least one annular seating ring having a central bore and mounted on a support element, and the seating ring includes an annular ring sleeve spaced outwardly of the support element having at least one radial annular face concentrically mounted on the support element.

Abstract: A damping assembly for fluid filled sock absorber having a cylinder and a rod slidable therein for movement in opposite directions from a static position includes a damping head mounted on the rod and having a plurality of bi-directional flow control or relief valves in communication with fluid chambers on opposite sides of the damping head which permit fluid flow between the chambers under selectively controlled predetermined parameters. Each bi-directional relief valve includes a unitary valve element having first and second ports which are positioned on opposite sides of a fixed port on the damping head when the valve element is in a neutral position. The valve element may be moved in either direction from the neutral position in response to the differential pressure across the damping head under selected conditions of preload which may be different in each direction. Also, the flow characteristics in either direction may be independently selected by appropriately shaping the first and second ports.