Bladed rotors
AssigneeDowty Rotol Limited
InventorsJohn Gregory Keenan, John Alfred Chilman, Ivor Harold Brooking
Life of this patent
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Abstract
A bladed rotor including a hub which carries, so as to be rotatable therewith, a liquid reservoir, at least one pump operable upon rotation of the rotor, a single liquid-pressure-operable vane-type actuator for adjusting the blades of the rotor to vary flow of fluid over the blades, and control valve means for controlling operation of the actuator. The said pump, when operating, draws liquid from the reservoir and delivers it under pressure, by way of said control valve means, to said actuator.
Claims12
A bladed rotor including a hub and adjustable blades carried by the hub, said hub including, housed wholly therein in close proximity to each other and rotatable all as one therewith, (a) structure defining a liquid reservoir of annular form which, during rotation of the rotor, is independent of any liquid supply source external of said rotor, (b) a single liquid-pressure-operable vane-type actuator which is disposed with its axis of rotation coincident with the axis of rotation of the rotor, which is connected to said blades for effecting adjustment thereof to vary flow of fluid over the blades and which comprises two cooperable multi-vaned actuator components, (c) at least one pump which is so mounted upon one of said two components that its inlet port is disposed immediately adjacent to said reservoir and its axis of rotation is substantially offset from and parallel to the axis of rotation of the rotor, said pump being operable consequent upon rotation of the rotor to draw liquid directly and only from said reservoir, and, (d) control valve means by way of which liquid discharged under pressure by said pump is directed to operate said actuator.
A bladed rotor as claimed in claim, said pump being mounted upon an external end face of one of said components.
Dependencies are inferred from the claim text.