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US 6,561,761 B1Granted
Fluted compressor flowpath
AssigneeGeneral Electric Company
InventorsJohn J. Decker, Andrew Breeze-Stringfellow
Life of this patent
Estimating the term…
Abstract
A compressor flowpath includes circumferentially spaced apart airfoils having axially spaced apart leading and trailing edges and radially spaced apart outer and inner ends. An outer wall bridges the airfoil outer ends, and an inner wall bridges the inner ends. One of the walls includes a flute adjacent the leading edges for locally increasing flow area thereat.
Claims23
A compressor flowpath for diffusing air comprising:
- a plurality of airfoils spaced circumferentially apart, and each including axially spaced apart leading and trailing edges and radially spaced apart outer and inner ends;
- a radially outer wall bridging said airfoils at said outer ends, and a radially inner wall bridging said airfoils at said inner ends;
- and
- at least one of said walls includes a circumferentially concave flute adjacent said leading edges for locally increasing flow area thereat.
1 more element
A fan flowpath for diffusing air comprising:
- a plurality of circumferentially spaced apart fan rotor blades extending radially outwardly from a supporting rotor disk, and each including axially spaced apart leading and trailing edges and radially spaced apart root and tip;
- an annular fan casing spaced radially from said blade tips and circumferentially bridging said blades thereat;
- a plurality of platforms spaced radially outwardly from said disk, and circumferentially bridging said blades at said roots thereof;
- and
- each of said platforms include a circumferentially concave flute adjacent said leading edges for locally increasing flow area thereat.
2 more elements
A compressor flowpath for diffusing air comprising:
- a plurality of circumferentially spaced apart compressor rotor blades extending radially outwardly from a supporting rotor drum, and each including axially spaced apart leading and trailing edges and radially spaced apart root and tip;
- a compressor casing spaced radially from said blade tips and circumferentially bridging said blades thereat;
- a plurality of platforms spaced radially outwardly from said drum, and circumferentially bridging said blades at said roots thereof;
- and
- each of said platforms includes a circumferentially concave flute adjacent said leading edges for locally increasing flow area thereat.
2 more elements
A compressor flowpath for diffusing air comprising:
- a plurality of circumferentially spaced apart compressor stator vanes each including axially spaced apart leading and trailing edges and radially spaced apart outer and inner ends;
- an annular outer band affixed to said vane outer ends;
- and
- said outer band includes a circumferentially concave flute adjacent said leading edges for locally increasing flow area thereat.
1 more element
Dependencies are inferred from the claim text.