Compressor bleed port

Details Compressor bleed port Compressor bleed port

1990-06-07

1991-10-22

Kwon, John T.

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

60 3907, F01D 514

Patent

active

050590936

ABSTRACT:
Rectangular bleed ports (24) are circumferentially arranged. Each port has an average radius (r) greater than 30 percent of the port width (W) throughout the reactant surface of the upstream facing edge (30), thereby avoiding flow separation from the surface. A tangent point (36) at the junction of the reactant surface (36) and the inside surface of casing (12) is located a distance (x) upstream to blades (18) greater than 40 percent of the spacing between the blades. This reduces flow losses in the ports caused by blade upwash.

REFERENCES:
patent: 3066912 (1962-12-01), Scheper, Jr.
patent: 3844343 (1974-10-01), Burggraf
patent: 4156344 (1979-05-01), Cuthbertson et al.
patent: 4463552 (1984-08-01), Monhart et al.
patent: 4471910 (1984-09-01), de Paul et al.
patent: 4546605 (1985-10-01), Mortimer et al.

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