Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Reexamination Certificate
2006-03-03
2009-11-17
Look, Edward (Department: 3745)
Rotary kinetic fluid motors or pumps
With sound or vibratory wave absorbing or preventing means...
C416S224000, C416S24100B
Reexamination Certificate
active
07618233
ABSTRACT:
Conical diffusers with or without conical center bodies can improve air moving performance by up to 21% at no increase in power. Embodiments coupled with electronically commutated motors (ECMs) showed additional reductions to condenser fan power of approximately 25%. A strip member, such as open cell foam can be applied as a liner to the interior walls of a condenser housing adjacent to the wall surface where the rotating blades sweep against. The porous edge can also be used with the trailing edge and/or tip edge of the blades. These members can both improve air flow by reducing dead air spacing between the rotating blade tips and the interior walls of the condenser housing, as well as lower undesirable noise sound emissions.
REFERENCES:
patent: 2638757 (1953-05-01), Borgerd
patent: 3799128 (1974-03-01), Small
patent: 3995442 (1976-12-01), Cavezza
patent: 4251189 (1981-02-01), Zinsser et al.
patent: 4470271 (1984-09-01), Draper et al.
patent: 4526506 (1985-07-01), Koger
patent: 4832633 (1989-05-01), Corlett
patent: 4971143 (1990-11-01), Hogan
patent: 4971520 (1990-11-01), Van Houten
patent: 5000079 (1991-03-01), Mardis
patent: 5320493 (1994-06-01), Shih
patent: 5369836 (1994-12-01), Horne
patent: 5540406 (1996-07-01), Occhipinti
patent: 5624234 (1997-04-01), Neely
patent: 5809800 (1998-09-01), Deal
patent: 6023938 (2000-02-01), Taras et al.
patent: 6129528 (2000-10-01), Bradbury
patent: 6185954 (2001-02-01), Smiley
patent: 6450760 (2002-09-01), Furukawa et al.
patent: 6626640 (2003-09-01), Ivanovic
patent: 2002/0015640 (2002-02-01), Nishiyama et al.
patent: 2003/0098144 (2003-05-01), Uselton et al.
Mehdi R. Khorrami, Fei Li and Meelan Choudhari, 2001. “A Novel Approach for Reducing Rotor Tip Clearance Induced Noise in Turbofan Engines” NASA Langley Research Center, American Institute of Aeronautics and Astronautics, 7th AIAA/CEAS Aeroacoustics Conference, Maastrictht, Netherlands, May 28-30, 2001.
Kernstock, Slashing Through the Noise Barrier,Defense Daily Network—Rotor&Wing's Cover Story, Aug. 1999, p. 1-11.
Hibbs Bart
Parker Danny S.
Sherwin John
Eastman Aaron R
Law Offices of Brian S. Steinberger , P.A.
Look Edward
Steinberger Brian S.
University of Central Florida Research Foundation Inc.
LandOfFree
High efficiency air conditioner condenser fan with... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High efficiency air conditioner condenser fan with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High efficiency air conditioner condenser fan with... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4071104