Thrust-reversing apparatus for jet-propelled aircraft

Claim 2

In combination with an aircraft jet-engine housing, thrustreversing apparatus comprising an arcuate thrust-reversing door, a pair of first links pivoted at one end thereof to said housing for rotation about a first axis disposed transverse to the longitudinal axis of the latter, said first links being spaced apart on said first axis and their free ends being respectively pivoted to the side edges of said door adjacent the aft end thereof so that the door is rotatable relative to said first links about an axis substantially parallel to said first axis, a pair of second links pivoted at one end thereof to said housing for rotation about a second axis disposed substantially parallel to said first axis and situated laterally therefrom, said second links being spaced apart on said second axis and their free ends being respectively pivoted to the side edges of said door at points spaced forward from the points where said first links are connected thereto so that the door is rotatable relative to said second links about an axis substantially parallel to said first axis, a pair of drive links respectively pivoted at one end thereof to the side edges of said door at points spaced forward from the points where said second links are connected thereto, and drive means operatively associated with said housing and respectively connected to the other ends of said drive links, said drive means being simultaneously operable to thereby move said door between stowed and deployed positions wherein the side edges thereof are respectively disposed axially of, and lateral to, the longitudinal axis of said housing.

Claim 3

In combination with a tubular aircraft jet-engine housing, thrust-reversing apparatus comprising a pair of elongate walls attached to and projecting rearwardly from the aft end of said housing and disposed in diametrically opposed relation relative thereto, four first links pairs of which are respectively pivoted at one end thereof to each wall for rotation about a first axis disposed transverse to the longitudinal axis of said housing, a pair of arcuate thrust-reversing doors the aft ends of the side edges of each of which are respectively pivoted to the free ends of two of said first links which are connected to different walls, the axes of rotation of said doors relative to the first links connected therewith being substantially parallel to said first axis, four second links pairs of which are respectively pivoted at one end thereof to each wall for rotation about axes disposed substantially parallel to said first axis and situated on opposite sides thereof, the free ends of two second links which are connected to different walls being respectively pivoted to the side edges of the respective doors at points spaced forward from the points where said first links are connected thereto so that the doors are rotatable relative to the second links connected therewith about axes substantially parallel to said first axis, and four drive links respectively pivoted at one end thereof to the side edges of said doors at points spaced forward of the points where said second links are connected thereto, and drive means operatively associated with said housing and respectively connected to the other ends of said drive links, said drive means being simultaneously operable to thereby move said doors between a stowed position wherein the side edges thereof are respectively disposed alongside the longitudinal edges of said walls and a deployed position wherein the side edges thereof are lateral to the longitudinal axis of said housing.

Claim 4

In combination with a tubular aircraft jet-engine housing, thrust-reversing apparatus comprising a pair of elongate walls attached to and projecting rearwardly from the aft end of said housing and disposed in diametrically opposed relation relative thereto, four first links pairs of which are respectively pivoted at one end thereof to each wall for rotation about a first axis disposed transverse to the longitudinal axis of said housing, a pair of arcuate thrust-reversing doors the aft ends of the side edges of each of which are respectively pivoted to the free ends of two of said first links which are connected to different walls, the axes of rotation of said doors relative to the first links connected therewith being substantially parallel to said first axis, four second links pairs of which are respectively pivoted at one end thereof to each wall for rotation about axes disposed substantially parallel to said first axis and situated on opposite sides thereof, the free ends of two second links which are connected to different walls being respectively pivoted to the side edges of the respective doors at points spaced forward from the points where said first links are connected thereto so that the doors are rotatable relative to the second links connected therewith about axes substantially parallel to said first axis, and four drive links respectively pivoted at one end thereof to the side edges of said doors at points spaced forward of the points where said second links are connected thereto, and drive means operatively associated with said housing and respectively connected to the other ends of said drive links, said drive means being simultaneously operable to thereby move said doors between a stowed position wherein the side edges thereof are respectively disposed alongside the longitudinal edges of said walls and a deployed position wherein the side edges thereof are lateral to the longitudinal axis of said housing.

Claim 5

Apparatus as defined in claim 2 wherein the first and second links connected to said sidewalls are respectively pivoted to support plates removably attached to the latter.

Claim 6

As as definEd in claim 2 wherein the first and second links connected to said doors are respectively pivoted to mounting plates removably attached to the side edges of the latter.