Fan and blower unit having the same

Details Fan and blower unit having the same Fan and blower unit having the same

2006-10-03

2006-10-03

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Between blade supported radial tip ring and static part

C415S228000, C416S16900R, C416S189000

Reexamination Certificate

active

07114921

ABSTRACT:
A cooling fan includes a cylindrical boss portion, a plurality of blades extending from the boss portion in a radial direction and a ring member integrated with radial outside edges of the blades. The ring member has an axial dimension smaller than an axial dimension of the blade at the radial outside edge, with respect to an axial direction of the boss portion. The ring member has an extending portion extending in a form of bell toward an upstream position of the blades with respect to an air flow. The extending portion is disposed such that a base point connecting to a body portion of the ring member is arranged in a range that begins at a point 25% and ends at a point 85% of a distance from an upstream end of the radial outside edge of the blade with respect to the axial dimension of the blade.

REFERENCES:
patent: 1724604 (1929-08-01), Lambert
patent: 3028072 (1962-04-01), Atalla
patent: 3842902 (1974-10-01), Poslusny
patent: 4505641 (1985-03-01), Tsuchikawa et al.
patent: 4871298 (1989-10-01), Vera
patent: 5393191 (1995-02-01), Alexander
patent: 5957661 (1999-09-01), Hunt et al.
patent: 6024536 (2000-02-01), Tsubakida et al.
patent: 6027307 (2000-02-01), Cho et al.
patent: 62-152098 (1987-09-01), None
patent: 3-259000 (1991-11-01), None
patent: 03-259000 (1991-11-01), None
patent: 05-033797 (1993-02-01), None
patent: 5-33797 (1993-02-01), None
patent: 5-15598 (1993-04-01), None
patent: 2002-201944 (2002-07-01), None

Affiliated with

Also associated with

Rating

Fan and blower unit having 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 Fan and blower unit having the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fan and blower unit having the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3710995