Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Runner having full circular shroud for blades
Patent
1999-02-26
2000-12-26
Lopez, F. Daniel
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Runner having full circular shroud for blades
415117, 415914, 4151731, 416181, 416189, F01D 900
Patent
active
061649112
ABSTRACT:
A compressor for a gas turbine engine, comprising a casing having an inner surface defining a plurality of circumferentially spaced-apart grooves adjacent the tips of a row of rotor blades. Each groove as a depth which is less than half the width thereof in order to increase surge margin at off design points without affecting the performance of the compressor under normal operating conditions.
REFERENCES:
patent: 3887295 (1975-06-01), Yu
patent: 3893787 (1975-07-01), Jones
patent: 4063848 (1977-12-01), Wiggins et al.
patent: 4086022 (1978-04-01), Freeman et al.
patent: 4212585 (1980-07-01), Swarden et al.
patent: 4239452 (1980-12-01), Roberts, Jr.
patent: 4466772 (1984-08-01), Okapuu et al.
patent: 4540335 (1985-09-01), Yamaguchi et al.
patent: 4714406 (1987-12-01), Hough
patent: 4781530 (1988-11-01), Lauterbach et al.
patent: 5137419 (1992-08-01), Waterman
patent: 5256031 (1993-10-01), Bothien et al.
patent: 5277541 (1994-01-01), Palmer
patent: 5308225 (1994-05-01), Koff et al.
patent: 5466118 (1995-11-01), Heinrich
patent: 5520508 (1996-05-01), Khalid
patent: 5707206 (1998-01-01), Goto et al.
LeBlanc André Denis
Ouellet Gilbert
Astle Jeffrey W.
Lopez F. Daniel
Nguyen Ninh
Pratt & Whitney Canada Corp.
LandOfFree
Low aspect ratio compressor casing treatment does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low aspect ratio compressor casing treatment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low aspect ratio compressor casing treatment will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-988356