United Technologies Corporation

Rtx Corporation

David E Gambardella

Brandon W Spangler

Nicholas Waters Oren

Jaime G Ghigliotty Rosado

Benjamin B Simpson

A turbine engine airfoil element has: an airfoil having: an exterior surface including a pressure side and a suction side; and a plurality of spanwise passageways including: a plurality of main body passageways along a camber line; and a plurality of skin passageways between the main body passageways and the exterior surface, wherein; the skin passageways have: a downstream direction from one or more inlets; a skin side; first and second lateral rounded transitions from the skin side; a parting line; and a longitudinally spaced plurality of protrusions from the skin side; and the protrusions have a height profile having: first and second tapering portions tapering from a maximum height, the first and second portions extending downstream; and first and second inwardly concave transitions to the skin passageway lateral rounded transitions.

Skin passageway trip strips

Aspects of the disclosure are directed to a seal associated with an engine of an aircraft. The seal includes a plurality of lands, and a barrel coupled to the lands and formed from a plurality of segments, where the segments are coupled to one another such that the barrel is substantially non-linear.

Rotating labyrinth M-seal

An apparatus includes a body, a collar, a fastener and a retainer. The body extends between first and second sides. The collar sealingly engages the first side and extends into an aperture in the body. The fastener engages the second side and extends through the collar to a distal end. The retainer is mated with the fastener at the distal end. The collar and the fastener cooperate to limit rotation therebetween.

Growing community of inventors

East Haven, CT, United States of America

David E Gambardella