Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices
Patent
1991-07-01
1992-10-20
Denion, Thomas E.
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Radial flow devices
416242, B64C 326
Patent
active
RE0341096
ABSTRACT:
A propeller having blades, designed to achieve maximum thrust at lower static velocities in both forward and reverse pitch modes is disclosed. Each blade has a generous leading edge radius leading to an upper surface having positive camber and a lower surface having positive camber adjacent the leading edge and negative camber adjacent the trailing edge. Each blade also has a high thickness-to-chord ratio and lower span-to-chord ratio or aspect ratio. This thicker blade profile and aft loading leads to a more uniform pressure distribution and laminar airflow across the blade surface resulting in a higher coefficient of lift, increased blade life and reliability, and lower noise levels.
REFERENCES:
patent: 904656 (1908-11-01), Steiger
patent: 2097389 (1932-07-01), De Mey et al.
patent: 2561705 (1951-07-01), Lochman
patent: 2609055 (1952-09-01), Monroe
patent: 3167129 (1965-01-01), Schultz
patent: 3310117 (1967-03-01), Slivinsky et al.
patent: 3333642 (1967-08-01), Kee
patent: 3632065 (1972-01-01), Rosta
patent: 3829240 (1974-08-01), Edenborough et al.
patent: 3946688 (1976-03-01), Gornstein et al.
patent: 4314795 (1982-02-01), Dadone
patent: 4373241 (1983-02-01), Maloof
patent: 4387869 (1983-07-01), Englar et al.
patent: 4408958 (1983-10-01), Schacle
patent: 4413796 (1983-11-01), Bousquet
patent: 4459083 (1984-07-01), Bingham
patent: 4498646 (1985-02-01), Proksch et al.
patent: 4552511 (1985-11-01), Sumigawa
Gornstein Robert J.
Patrick Dennis J.
Denion Thomas E.
IMC Magnetics Corp.
LandOfFree
Propeller blade does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Propeller blade, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Propeller blade will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-184683