Compressor having casing treatment slots

Details Compressor having casing treatment slots Compressor having casing treatment slots

2007-05-01

2007-05-01

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing with axial flow runner

C415S914000

Reexamination Certificate

active

10992834

ABSTRACT:
A compressor (16) comprises a rotor (40) having a plurality of circumferentially spaced radially outwardly extending rotor blades (42). A casing (44) surrounds the rotor (40) and rotor blades (42). The casing (44) has an inner surface (48) and a plurality of circumferentially spaced slots (50) are provided in the inner surface (48) of the casing (44). Each slot (50) has a length (L), a depth (D), a width (W), an angle (θ) of inclination relative to the radial direction, an axial position (AP) relative to the rotor blades (42) and a circumferential position (CP) relative to an adjacent slot (50). The slots (50) are arranged such that at least one of the length (L), depth (D), width (W), angle (θ) of inclination relative to the radial direction, axial position (AP) relative to the rotor blades (42) and circumferential position (CP) relative to an adjacent slot (50) varies circumferentially around the casing (44).

REFERENCES:
patent: 3580692 (1971-05-01), Mikolajczak
patent: 4239452 (1980-12-01), Roberts, Jr.
patent: 5282718 (1994-02-01), Koff et al.
patent: 5586859 (1996-12-01), Nolcheff
patent: 6290458 (2001-09-01), Irie et al.
patent: 2003/0152455 (2003-08-01), James
patent: 2245312 (1992-01-01), None

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