Acoustically swept rotor

Details Acoustically swept rotor Acoustically swept rotor

1977-09-08

1979-09-25

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Tined or irregular periphery

416238, 415119, B64C 2746

Patent

active

041689399

ABSTRACT:
Impulsive noise reduction is provided in a rotor blade by "acoustically sweeping" the chord line from root to tip so that the acoustic radiation resulting from the summation of potential singularities used to model the flow about the blade tend to cancel for all times at an observation point in the acoustic far field.

REFERENCES:
patent: 1801216 (1931-04-01), Anderson
patent: 2043736 (1936-06-01), Charavay
patent: 2451106 (1948-10-01), Martin
patent: 2962260 (1960-11-01), Foley
patent: 3065933 (1962-11-01), Williams
patent: 3399731 (1968-09-01), Giles
patent: 3989406 (1976-11-01), Bliss
Aero Digest, vol. 63, No. 1, Jul. 1951, pp. 99-107.

Affiliated with

Also associated with

Rating

Acoustically swept rotor does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1984706