Hamilton Sundstrand Corporation

Hs Wroclaw Sp. Z O.o.

Utc Aerospace Systems Wroclaw Sp. Z O.o.

Daniel Trybula

Maciej Sobieszek

Pawel Kwasniewski

An actuator for driving a rotatable component includes a first, rotating member comprising a screw and a second member comprising a nut threaded to said screw, wherein rotation of said first member causes axial movement of said first or second member. The component also includes a third member coupled to the second member, wherein axial movement of said first or second member causes axial movement of said third member and a fourth, rotating member coupled to said third member and connectable to said component. The system also includes a bearing system located between said third member and said fourth member, said bearing system configured to cause said fourth member to rotate upon said axial movement of said third member so as to drive said component.

Actuator

A no-back device for resisting feedback torque from an actuator. The no-back device comprises: a flange arranged to receive torque via a shaft; a ratchet assembly comprising a ratchet wheel arranged parallel to the flange; and a braking assembly comprising a resistance wheel, which is sandwiched between the flange and the ratchet wheel, and a braking device, which acts on the resistance wheel to generate a resistive angular force reacting against torque exerted on the resistance wheel. The braking device comprises a follower arranged to roll, under bias from a spring in the braking device, on a cam surface extending around a circumferential perimeter of the resistance wheel. Radial displacement of the follower energizes the spring to generate resistive angular force.

No-back device with energy-dispersing springs

An apparatus for unlocking an actuator comprises a first member mounted in a housing for rotation about an axis and having a circumferentially extending surface, a recess being formed in a section of the circumferentially extending surface. A second member for operative connection to a lock release element of an actuator is mounted for movement in a direction generally transverse to the axis of rotation of the first member and has a follower element resiliently biased into contact with the circumferentially extending surface of the first member. A rotary actuator is provided for rotating the first member about the axis between a first, locking position in which the follower element engages on the circumferentially extending surface and a second, unlocking position in which the follower element is at least partially received within the recess.

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Spytkowice, Poland

Daniel Trybula