Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Cantilever blade
Patent
1995-06-06
1997-04-29
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Cantilever blade
416189, 416242, F04D 2938
Patent
active
056242344
ABSTRACT:
A blade for a vehicle engine-cooling fan assembly having a curved planform and a high-lift airfoil. The planform has a first region adjacent the root of the blade with forward curvature, a second region adjacent the tip of the blade with backward curvature, and an intermediate region disposed between the first region and the second region with substantially straight curvature. The airfoil has a leading edge; a rounded, bulbous nose section adjacent the leading edge; a trailing edge; a curved pressure surface extending smoothly and without discontinuity from the nose section to the trailing edge; a curved suction surface extending smoothly and without discontinuity from the nose section to the trailing edge; and a thin, highly cambered aft section formed adjacent the trailing edge and between the pressure surface and the suction surface. The nose section has a thickness which is greater than the thickness of the airfoil between the pressure surface and the suction surface and the nose section blends smoothly into the pressure surface and the suction surface.
REFERENCES:
patent: 1129934 (1915-03-01), Wiedling
patent: 1323102 (1919-11-01), Roberts
patent: 2157999 (1939-07-01), Charavay
patent: 2682925 (1954-07-01), Wosika
patent: 3333817 (1967-08-01), Rhomberg
patent: 4073601 (1978-02-01), Kress
patent: 4135858 (1979-01-01), Entat
patent: 4358245 (1982-11-01), Gray
patent: 4548548 (1985-10-01), Gray, III
patent: 4569631 (1986-02-01), Gray, III
patent: 4569632 (1986-02-01), Gray, III
patent: 4684324 (1987-08-01), Perosino
patent: 4685513 (1987-08-01), Longhouse et al.
patent: 4692098 (1987-09-01), Razinsky et al.
patent: 4840541 (1989-06-01), Sakane et al.
patent: 4871298 (1989-10-01), Vera
patent: 4900229 (1990-02-01), Brackett et al.
patent: 4915588 (1990-04-01), Brackett
patent: 4930984 (1990-06-01), Kesel et al.
patent: 4971520 (1990-11-01), Van Houten
patent: 5000660 (1991-03-01), Van Houten et al.
patent: 5064345 (1991-11-01), Kimball
patent: 5151014 (1992-09-01), Greenwald et al.
patent: 5169290 (1992-12-01), Chou
patent: 5193981 (1993-03-01), Scheidel et al.
patent: 5197854 (1993-03-01), Jordan
patent: 5221187 (1993-06-01), Lorea et al.
patent: 5244347 (1993-09-01), Gallivan et al.
patent: 5320493 (1994-06-01), Shih et al.
patent: 5326225 (1994-07-01), Gallivan et al.
patent: 5342167 (1994-08-01), Rosseau
patent: 5354178 (1994-10-01), Ferleger et al.
patent: 5393199 (1995-02-01), Alizaden
patent: 5399070 (1995-03-01), Alizaden
patent: 5454695 (1995-10-01), Shah et al.
International Search Report dated Apr. 25, 1996.
Neely Michael J.
Savage John R.
ITT Automotive Electrical Systems Inc.
Lewis J. Gordon
Look Edward K.
Sgantzos Mark
Twomey Thomas N.
LandOfFree
Fan blade with curved planform and high-lift airfoil having bulb does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fan blade with curved planform and high-lift airfoil having bulb, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fan blade with curved planform and high-lift airfoil having bulb will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-701481