Wind turbine

Details Wind turbine Wind turbine

1994-10-06

1996-07-09

Denion, Thomas E.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Tined or irregular periphery

416236R, 244199, 244200, F04D 2938

Patent

active

055338658

ABSTRACT:
In order to reduce the noise nuisance caused during operation by rotor blades of a rotor of a wind turbine the rear edge of each blade is irregularly formed. In particular the saw-tooth form with a top angle smaller than about 150.degree. and preferably 10.degree. is found to produce a considerable noise reduction.

REFERENCES:
patent: 175355 (1876-03-01), King
patent: 1862827 (1932-06-01), Parsons et al.
patent: 2800291 (1957-07-01), Stephens
patent: 3365126 (1968-01-01), Stoffer et al.
patent: 4089618 (1978-05-01), Patel
patent: 4813633 (1989-03-01), Werle et al.
patent: 4830315 (1989-05-01), Presz, Jr. et al.
patent: 5074376 (1991-12-01), Powell
patent: 5088665 (1992-02-01), Vijgen et al.
M. S. Howe, Noise produced by a sawtooth trailing edge, J. Acoust Soc. Am., 90(1), 1991, pp. 482-487.
F. Hagg et al., National Aero-Acoustic Research on Wind Trubines in the Netherlands, 1993, 5 pages.
Patent Abstracts of Japan, vol. 14, No. 243 (M-0977), Abstract of JP2064300, Mar. 5, 1990, 1 page.

Affiliated with

Also associated with

Rating

Wind turbine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wind turbine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wind turbine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1863185