Ultra-thin low noise axial flow fan for office automation machin

Details Ultra-thin low noise axial flow fan for office automation machin Ultra-thin low noise axial flow fan for office automation machin

1992-12-16

1994-06-14

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Radial flow devices

416238, F04D 2938

Patent

active

053204930

ABSTRACT:
An ultra-thin low noise axial flow fan is provided for office automation machine. The center line along the blade from its root portion to its tip portion is circular arc form and it is perpendicular to the central hub. The leading edge skew angle at the tip portion of the blade is 47 degrees. The blade angle of each blade ranges from 57 to 63 degrees, which is first directly proportional to the radius of the blade and then inversely proportional to the radius of the blade from the root portion to the tip portion of the blade. The pitch-chord ratio of each blade is inversely proportional to the radius of the blade from the root port to the tip portion of the blade. The blade of the fan thereby generates high air flow and high pressure, and has advantages of low noise and ultra-thin outer casing.

REFERENCES:
patent: 3367423 (1968-02-01), Van Ranst
patent: 4548548 (1985-10-01), Gray, III
patent: 4569631 (1986-02-01), Gray, III
patent: 4569632 (1986-02-01), Gray, III
patent: 4971520 (1990-11-01), Van Houten

Affiliated with

Also associated with

Rating

Ultra-thin low noise axial flow fan for office automation machin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultra-thin low noise axial flow fan for office automation machin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra-thin low noise axial flow fan for office automation machin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1244244