Fan device capable of reducing the stagnant flow at the root are

Details Fan device capable of reducing the stagnant flow at the root are Fan device capable of reducing the stagnant flow at the root are

1992-12-16

1994-05-17

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Integrally shaped or blended into hub

416169A, 416223R, 416243, 416241A, 415119, F04D 2938

Patent

active

053122305

ABSTRACT:
An axial flow fan device capable of reducing the stagnant flow at the root area of blades. These blades 18 are arranged so that they extend radially from a boss portion 14 so that they are circumferentially spaced along the circumference of the boss portion 14. Each of the blades 18 has an arc shaped cross section having a bending ratio value .alpha., that is a ratio of the bending height h of the arc shape to the length l of the chord of the arc shape. The value of the bending ratio rapidly increases from the middle portion of the blade to the root portion. The value of the bending ratio at the root portion is about 12%.

REFERENCES:
patent: 3173490 (1965-03-01), Stuart, III
patent: 4046489 (1977-09-01), Fairchild et al.
patent: 4063852 (1977-12-01), O'Connor
patent: 4568242 (1986-02-01), Susa et al.
patent: 4671739 (1987-06-01), Read et al.
patent: 4840541 (1989-06-01), Sakane et al.
patent: 5066196 (1991-11-01), Morofushi

Affiliated with

Also associated with

Rating

Fan device capable of reducing the stagnant flow at the root are 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 device capable of reducing the stagnant flow at the root are, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fan device capable of reducing the stagnant flow at the root are will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-872274