초록 ▼

A skin construction suitable for use as a high temperature airfoil surface that includes a metallic member having first and second corrugations. The first corrugations have a size and spacing which permits resilient thermal expansion of the member in a direction transverse to the direction of the fi

A skin construction suitable for use as a high temperature airfoil surface that includes a metallic member having first and second corrugations. The first corrugations have a size and spacing which permits resilient thermal expansion of the member in a direction transverse to the direction of the first corrugations. The second corrugations are positioned in a direction that is substantially transverse to the direction of the first corrugations and the second corrugations have a size and spacing which permits resilient thermal expansion of the member in a direction generally transverse to the direction of the second corrugations. An imperforate metallic surface is integral with the metallic member. Thermal stresses imposed on the skin construction are, thus, absorbed by deformation of the first and second corrugations which act as expansion joints in permitting controlled expansion of the skin construction. In combination, a skin construction, as described, and a support structure for positioning the skin construction in spaced relation to an underlying structure. The upstanding metallic support members are connected to a surface of the metallic member of the skin construction with the support members including a corrugated upstanding surface. In combination, a high temperature skin construction and a support structure, both as described, and an underlying structure with the skin construction supported in spaced relation to the underlying structure. Insulation is placed in the space between the skin construction and the underlying structure. The combination may include means to vent the space between the skin construction and the underlying structure to ambient pressure.

대표청구항 ▼

A metallic skin construction suitable for usage as a high temperature airfoil surface comprising: a screen having a first set of wires and a second set of wires with the second set of wires being positioned generally transverse to the direction of the first set of wires; the wires in said first set

A metallic skin construction suitable for usage as a high temperature airfoil surface comprising: a screen having a first set of wires and a second set of wires with the second set of wires being positioned generally transverse to the direction of the first set of wires; the wires in said first set of wires having a generally undulating form which defines first corrugations; the wires in said second set of wires having a generally undulating form which defines second corrugations; the wires of said first set of wires being movable with respect to the wires of said second set of wires such that said first and second corrugations are free to expand and contract in a relatively independent manner with respect to each other; a metallic foil having an imperforate surface; means joining the foil to the screen at discretely spaced points, and the foil being sufficiently thin to deform without rupturing during relative movement of the foil and screen at intermediate locations between the discretely spaced points, whereby thermal stresses on said skin construction are absorbed by deformation of said first and second corrugations in which the first and second corrugations act in a relatively independent manner as expansion joints in providing for controlled expansion of the skin construction without rupturing of said imperforate metallic skin surface. A metallic skin construction suitable for usage as a high temperature airfoil surface comprising: means providing an imperforate metallic skin surface in said skin construction; means providing first corrugations and second corrugations in said skin construction with said first and second corrugations being free to expand and contract in a relatively independent manner with respect to each other; said first corrugations having a size and spacing which permits resilient expansion of said skin construction in the direction along the plane of said metallic skin surface and in a direction transverse to the direction of said first corrugations; said second corrugations positioned in a direction substantially transverse to said first corrugations; said second corrugations having a size and spacing which permits resilient thermal expansion of said skin construction in a direction along the plane of said metallic skin surface and in a direction transverse to the direction of said second corrugations, whereby thermal stresses imposed on said skin construction are absorbed by deformation of said first and second corrugations which first and second corrugations act in a relatively independent manner as expansion joints in providing for controlled expansion of the skin construction without rupture of said imperforate metallic skin surface. The combination of claim 59 wherein said skin construction defines an airfoil surface having a leading edge and a trailing edge, and the distance between the skin construction and the underlying structure being greatest at said leading edge with the spacing diminishing toward said trailing edge.