Axial fan and blade design method for the same

Details Axial fan and blade design method for the same Axial fan and blade design method for the same

2007-08-23

2011-10-18

Edgar, Richard (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Radial flow devices

C416S239000

Reexamination Certificate

active

08038406

ABSTRACT:
An axial fan which includes a hub portion having the rotational center thereof and blades arranged on the outer periphery of the hub portion is equipped with a thickness reinforcing portion which extends from the joint portion between the blade front edge portion of the blade and the hub portion to the outer periphery of the blade along the blade front edge and whose width and thickness are smaller as the distance from the rotational center of the hub portion is larger. There is achieved an arc corresponding to the overlap portion between the blade and a circle of a first radius which passes from the blade front edge side of the blade to the blade rear edge side and has as the center thereof any reference point displaced from the rotational center on a plane vertical to the rotational axis of the hub portion and the blade.

REFERENCES:
patent: 4738594 (1988-04-01), Sato et al.
patent: 4746271 (1988-05-01), Wright
patent: 2005/0111986 (2005-05-01), Tsai
patent: 548414 (1942-10-01), None
patent: 08074790 (1996-03-01), None
patent: 2001115995 (2001-04-01), None
patent: 2003065293 (2003-03-01), None
patent: 2005-105865 (2005-04-01), None
patent: 3754244 (2005-12-01), None
patent: 2006/078083 (2006-07-01), None
JP 08-074790A Machine Translation. Accessed JPO on Feb. 26, 2010.
JP 2003-065293 A Machine Translation. Accessed JPO on Feb. 28, 2010.
JP 2001-115995 A Machine Translation. Accessed JPO on Feb. 28, 2010.

Affiliated with

Also associated with

Rating

Axial fan and blade design method for the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Axial fan and blade design method for the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Axial fan and blade design method for the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4277893