Cooled aerodynamic device

Claim 2

A fluid cooled aerodynamic device comprising: a fluid impervious shell member of aerodynamic shape having leading and trailing edges and having a cavity therein extending along its entire span with an exit opening cummunicating between said cavity and the ambient atmosphere; a body member inserted in the cavity of said shell member said body being spaced apart from said shell member at predetermined points to form a plurality of chordwise cooling fluid passages therebetween in communication with the exit opening of said shell member and having openings communicating between each of said passages and a source of cooling fluid said body member forming closure means for the ends of said cavity; and metering means for metering cooling fluid flow from said source into each of said cooling fluid passages.

Claim 3

A fluid cooled aerodynamic device according to claim 1 wherein the exit opening in said shell member in communication with the ambient atmosphere is at the trailing edge of said shell member.

Claim 4

The fluid cooled aerodynamic device of claim 2 wherein the exit opening is a slot-shaped opening.

Claim 5

A fluid cooled aerodynamic blade comprising: a shell member of aerodynamic shape having a suction surface and a pressure surface and leading and trailing edges, said shell having a cavity therein and an opening in communication with said cavity and the ambient atmosphere; a body member formed generally in the shape of said cavity and inserted therein, said body member being spaced apart from the inner wall of said cavity at predetermined points to form at least one cooling fluid passage therebetween said passage being in communication with the opening of said shell member and extending across the chord of the blade to provide for flow of cooling fluid from the leading to the trailing edge; conduit means connecting said cooling fluid passage with a source of cooling fluid; and metering means for controlling cooling fluid flow in said conduit.

Claim 6

A fluid cooled aerodynamic blade comprising: a shell member of aerodynamic shape having a suction surface and a pressure surface and leading and trailing edges, said shell having a cavity therein and an opening in communication with said cavity and the ambient atmosphere; a body member formed generally in the shape of said cavity and inserted therein, said body member being spaced apart from the inner wall of said cavity at predetermined points to form at least one cooling fluid passage therebetween said passage being in communication with the opening of said shell member and extending across the chord of the blade to provide for flow of cooling fluid from the leading to the trailing edge; conduit means connecting said cooling fluid passage with a source of cooling fluid; and metering means for controlling cooling fluid flow in said conduit.

Claim 7

A fluid cooled aerodynamic blade according to claim 4 wherein said body member includes a wall member, said wall member forming a plurality of cooling fluid passages, each of said passages being connected to separate conduit means.

Claim 8

A fluid cooled aerodynamic blade according to claim 5 wherein said body member forms two cooling fluid passages, one of said passages being in fluid contact with the surface of said cavity nearest the suction surface of said shell member and the other of said passages in fluid contact with the surface of said cavity nearest the pressure surface.

Claim 9

A fluid cooled aerodynamic blade comprising: a shell member of aerodynamic shape having first and second aerodynamic surfaces forming a leading and trailing edge, said shell having an opening approximating the exterior aerodynamic shape and extending along the entire span of the blade and connected by a fluid passage to a fluid exit port; an insert member shaped generally in the form of the span-wise opening in the shell member at its top and bottom surfaces, and having relieved portions intermeDiate said top and bottom surfaces, said relieved portions forming a plurality of chordwise cooling passages between the internal surface of said shell member and said insert, said top and bottom surfaces forming closures to the ends of the span-wise passage; a plurality of conduit means attached to said insert member, each of said conduit means connecting one of said cooling passages with a source of cooling fluid; and metering means attached to each of said conduits between the source of cooling fluid and its respective cooling passage for independently metering flow of cooling fluid to each passage.

Claim 10

A fluid cooled aerodynamic blade comprising: a shell member of aerodynamic shape having first and second aerodynamic surfaces forming a leading and trailing edge, said shell having an opening approximating the exterior aerodynamic shape and extending along the entire span of the blade and connected by a fluid passage to a fluid exit port; an insert member shaped generally in the form of the span-wise opening in the shell member at its top and bottom surfaces, and having relieved portions intermeDiate said top and bottom surfaces, said relieved portions forming a plurality of chordwise cooling passages between the internal surface of said shell member and said insert, said top and bottom surfaces forming closures to the ends of the span-wise passage; a plurality of conduit means attached to said insert member, each of said conduit means connecting one of said cooling passages with a source of cooling fluid; and metering means attached to each of said conduits between the source of cooling fluid and its respective cooling passage for independently metering flow of cooling fluid to each passage.

Claim 11

The fluid cooled aerodynamic blade of claim 7 wherein first and second separate cooling passages are formed, said passages being adjacent the first and second aerodynamic surfaces of said shell member respectively, said passages being connected at a common point to the exit port of said shell member.

Claim 12

The fluid cooled aerodynamic blade of claim 8 wherein said exit port comprises a slot-like opening formed one one of said aerodynamic surfaces at the trailing edge thereof.

Claim 13

The fluid cooled aerodynamic device of claim 1 wherein said body member forms two chordwise passages, one of said passages being formed along the chord of the suction surface and the other passage being formed along the chord of the pressure surface.

Claim 14

The fluid cooled aerodynamic device of claim 9 wherein one of said conduit means is connected at the top of the surface of said insert member and the other of said conduits is connected to the bottom surface of said insert member and said metering means comprises an orifice plate assembled in each of said conduit means.