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An engine mounting system where an aft body mounted counter-rotation prop fan engine is mounted to aircraft structure. The engine is connected through a longitudinally extending beam to a mounting strut structure comprising a fore spar, a mid spar and a rear spar. Vertical loads and lateral loads ar

An engine mounting system where an aft body mounted counter-rotation prop fan engine is mounted to aircraft structure. The engine is connected through a longitudinally extending beam to a mounting strut structure comprising a fore spar, a mid spar and a rear spar. Vertical loads and lateral loads are transmitted from the engine to the beam at forward and rear locations, and these vertical and lateral loads are in turn transmitted to the spars at forward and rear locations. The torque loads from the engine are transmitted at a selected location into the beam, and then transmitted through the beam to the spar or spars at a selected location or locations. The beam can initially be mounted to either the engine or to the spars of the aircraft.

대표청구항 ▼

An engine mounting assembly having a longitudinal axis, a horizontal transverse axis, a vertical axis, a forward end and a rear end, said assembly comprising: (a) an engine housing having a longitudinally extending engine axis and adapted to carry transverse loads and thrust loads, said housing also

An engine mounting assembly having a longitudinal axis, a horizontal transverse axis, a vertical axis, a forward end and a rear end, said assembly comprising: (a) an engine housing having a longitudinally extending engine axis and adapted to carry transverse loads and thrust loads, said housing also being adapted to carry engine developed torque loads and to transmit such torque loads at a predetermined torque transmitting housing location along said engine axis, (b) an engine mounting means operatively connected to said engine housing to carry said transverse loads, thrust loads and torque loads, said engine mounting means comprising: 1. a base support structure adapted to carry said transverse loads and thrust loads and having a predetermined torque load receiving location at which said base support structure is particularly configured and arranged to carry said torque loads, 2. a longitudinally extending torque beam having a lengthwise axis and being mounted to said base support structure, said beam having: i. a first beam to housing load transmitting connection means at a first beam to housing connecting location which is adjacent to said torque transmitting housing location and through which at least a major portion of said beam receives torque loads from the engine housing: ii. a second beam to housing load transmitting connection means at a second beam to housing connecting location which is spaced from said first beam to housing connecting location along the lengthwise axis of the beam, said second beam to housing connection means transmitting to said beam no more than a minor portion of the torque loads from the engine housing, iii. a third beam to base structure load transmitting connection means at a third beam to base structure connecting location which is adjacent to the torque load receiving location of the base structure and through which said beam transmits at least a major portion of torque loads received by the beam to the base structure, iv. a fourth beam to base structure load transmitting connection means at a fourth beam to base structure connecting location which is spaced from said third beam to base structure connecting location along said beam axis, said fourth beam to base structure connecting means transmitting to said base structure no more than a minor portion of the torque loads from the beam.