Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1981-12-28
1988-10-04
Hornsby, Harvey C.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
415115, F01D 518
Patent
active
047752963
ABSTRACT:
A coolable airfoil 10 for rotary machines is disclosed. The airfoil has a passage 54 extending spanwisely through the leading edge region 26 of the blade. The first passage has a plurality of trip strips 66s, 66p canted toward the approaching flow and angled with respect to the wall in the leading edge region to turbulently increase the amount of cooling flowed to the forward most portion of the passage in the leading edge region. In one embodiment, a hole 72 in fluid communication with a turning passage 64 in the tip region of the blade downstream of the first passage is in fluid communication with the trailing edge of the blade.
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Schwarzmann Russell A.
Sevcik, Jr. William R.
Fleischhauer Gene D.
Hornsby Harvey C.
Stinson Frankie L.
United Technologies Corporation
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