초록 ▼

A pneumatic deicing system includes a deicer assembly comprised of an outer layer having a low modulus of elasticity, an inner ply, and a plurality of inflatable members provided therebetween for imposing strain in ice accumulated thereon. The deicer assembly is disposed directly on top of and bonde

A pneumatic deicing system includes a deicer assembly comprised of an outer layer having a low modulus of elasticity, an inner ply, and a plurality of inflatable members provided therebetween for imposing strain in ice accumulated thereon. The deicer assembly is disposed directly on top of and bonded to the leading edge of an airfoil. The deicer has a plurality of large radius spanwise running inflatable members arranged substantially parallel to the leading edge and a plurality of small radius spanwise running inflatable members arranged substantially parallel to the leading edge and disposed chordwise aft of the large radius spanwise running inflatable members. The small radius inflatable members are covered with a low ice adhesion surface.

대표청구항 ▼

[ What is claimed is:] [1.]1. A pneumatic deicer for attachment to the leading edge of an airfoil having a chordwise and spanwise length, said deicer comprising:first and second portions disposed on opposite sides of a stagnation line for positioning on opposite sides of the airfoil, respectively;sa

[ What is claimed is:] [1.]1. A pneumatic deicer for attachment to the leading edge of an airfoil having a chordwise and spanwise length, said deicer comprising:first and second portions disposed on opposite sides of a stagnation line for positioning on opposite sides of the airfoil, respectively;said first and second portions including a top layer having a modulus of elasticity of less than 40,000 kPa;said first and second portions together including at least three larger radius inflatable members extending longitudinally in a spanwise direction;one of said first and second portions including at least two of said larger radius inflatable members and a plurality of smaller radius inflatable members disposed chordwise aft of said at least one of said larger radius inflatable members; andsaid larger and smaller inflatable members being operable when inflated to distort said top layer in order to impose strain in ice accumulated thereon.