System for warning an open state of a two-part fan cowl
AssigneeAirbus Defence and Space, S.A.U.
InventorsFrancisco José Benítez Guerrero, Yolanda Marcos Martín
Life of this patent
Estimating the term…
Abstract
A system for warning an open state of a two-part fan cowl of an aeronautical structure, wherein the system includes at least one device arranged between these two parts of the fan cowl and adapted to exert force spacing them apart from each other, thus leaving a predefined gap between them at their lower ends when that two-part fan cowl is in the open state.
Claims19
A system configured issue a warning of an open state of a two-part fan cowl, wherein each part of the two-part fan cowl comprises:
- an upper end adapted to be rotatable fixed to at least one hinged fitting, and
- a lower end adapted to attach to a member of a latching unit, wherein a non-latched state of the latching unit defines an open state of the two-part fan cowl and a latched state of the latching unit defines a closed state of the two-part fan cowl;
- and
- the system further comprises at least one device arranged between the two parts of the fan cowl, wherein the at least one device applies a force to at least one of the two parts of the fan cowl to form a predefined gap between the lower ends of the parts of the two-part fan cowl when the two-part cowl is in the open state;
- wherein the at least one device is at least one extensible bumper device between the two parts of the fan cowl and adapted to be secured to the at least one of the hinged fittings.
A two-part fan cowl for a nacelle of an aircraft engine, the two-part fan cowl comprising:
- a first part and second part each forming a semi-cylindrical housing and separated by a vertical plane, wherein each of the first and second parts include an upper edge and a lower edge, wherein the upper edge is configured to be pivotably attached to a respective hinged fitting, and the lower edges are configured to be closed together by at least one hook-keeper unit while the two-part fan cowl is in a closed state;
- and
- an extendible bumper between the upper edges of the first and second parts and having opposite ends each configured to be pivotably attached to a respective one of the hinged fittings, wherein the extendible bumper includes a spring applying a bias force to extend the extendible bumper rod and thereby pivot outward the first and second parts to create a gap between the lower edges of the first and second parts, while the two-part fan cowl is in an open position.
A method to install a warning system on a two-part fan cowl for a nacelle of an aircraft engine for an aircraft, the method comprising:
- mounting upper edge regions of first and second parts of the two-part fan to respective hinged fittings on the aircraft, wherein the mounting allows the first and second parts to respectively pivot between open and closed positions;
- attaching each of opposite ends of an extendible bumper to a respective one of the hinged fittings such that the extendible bumper applies an expansion force to at least one of the hinged fittings to move at least one of the first and second parts outward to form a gap between the parts while in the first and second parts are not latched together;
- and
- latching together lower edge regions of the first and second parts to place the two-part fan cowl in the closed position, wherein the latching together includes latching mating latching units on each of the lower edge regions of the first and second parts.
Dependencies are inferred from the claim text.