Shielded aircraft brake assembly
AssigneeDunlop Aerospace Limited
InventorPhilip Arnold Swales
Life of this patent
Estimating the term…
Abstract
An aircraft brake assembly (1) incorporating components which are sensitive to heat and to contact with substances present in runway de-icer compositions, cleansing fluids and like liquids, the assembly (1) including external means (10) to shield the components from the liquids, said shielding means (10) may comprise a rigid or flexible, fluid-impermeable or porous material located to receive and retain such liquids. Heat generated through use of the brake assembly (1) may evaporate any liquid settled on said shielding means (10) or at least discourage any liquid from settling thereon.
Claims18
An aircraft brake assembly (1) incorporating a heat stack which is sensitive to heat and to contact with substances present in runway de-icer compositions, cleansing fluids and like liquids, the assembly (1) including shielding means (10) mounted on an exterior surface of the heat stack at one end thereof to receive and retain, in use, impinging liquids to which the heat stack is sensitive.
An aircraft brake assembly (1) incorporating components which are sensitive to heat and to contact with substances present in runway de-icer compositions, cleansing fluids and like liquids, the assembly (1) including external means (10) to shield the components from the liquids;
- characterised in that the shielding means (10) are adapted to receive and retain the liquids and are located to be heated by heat generated by the brakes to evaporate liquids received and retained in said shielding means (10).
An aircraft brake assembly (1) incorporating components which are sensitive to heat and to contact with substances present in runway de-icer compositions, cleansing fluids and like liquids, the assembly (1) including external means (10) to shield the components from the liquids characterised in that the shielding means (10) comprises a porous material located to receive and retain such liquids.
An assembly (1) according to any preceding claim, wherein the shielding means (10) comprises a member (12) formed of porous material.
An assembly (1) according to any preceding claim, wherein the sensitive components are carbon-carbon brake discs arranged in a heat stack.
An assembly (1) according to any preceding claim, wherein the shielding member (12) is mounted on an exterior surface of one end of the stack, e.g. on the pressure stator (11), at a location where it will experience heat generated by the brake discs in use.
An assembly (1) according to any preceding claim, wherein said shielding means (10) is impregnated with reagents to neutralise or fix substances contained in liquids.
An assembly (1) according to any preceding claim further comprising a torque tube, wherein the shielding means (10) is mounted about the torque tube to prevent pooling of said liquids, in use, in the area of the torque tube.
A method of shielding the components of an aircraft brake assembly which are sensitive to heat and to contact with substances present in runway de-icer compositions, cleaning fluids and like liquids, the method comprising mounting shielding means on the outside of the assembly at a location which will not substantially increase the temperature of the heat sensitive components;
- the method being characterised by receiving and retaining such liquids within the pores of a porous member which comprises the shielding means.
A method of shielding the components of an aircraft brake assembly which are sensitive to heat and to contact with substances present in runway de-icer compositions, cleaning fluids and like liquids, the method comprising mounting shielding means on the outside of the assembly at a location which will not substantially increase the temperature of the heat sensitive components characterised by locating the shielding means on the exterior surface of one end of the heat stack of the aircraft brake assembly.
Dependencies are inferred from the claim text.