Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part
Reexamination Certificate
2005-03-08
2005-03-08
Verdier, Christopher (Department: 3745)
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Between blade edge and static part
C415S220000, C415S222000, C415S223000, C415S208100, C415S211200
Reexamination Certificate
active
06863496
ABSTRACT:
A fan and shroud assembly includes a fan having a hub rotating around one shaft and a plurality of blades extending outwardly from the hub, a shroud encompassing the fan to adjust airflow by rotation of the fan, a guide ring portion located at a position where a predetermined gap exists between the shroud and a circumference connecting end tips of the blades so that the fan is supported by the shroud and rotates, and a plurality of swirl prevention units integrally formed with the guide ring portion to prevent a vortex from proceeding along the circumference in the predetermined gap, each swirl prevention unit having a shape in which the length of a circular arc passing through each of the swirl prevention units with respect to the center of the shroud decreases as the arc is closer to the center of the shroud.
REFERENCES:
patent: 4311431 (1982-01-01), Barbeau
patent: 4548548 (1985-10-01), Gray, III
patent: 4738586 (1988-04-01), Harter
patent: 5443363 (1995-08-01), Cho
patent: 5489186 (1996-02-01), Yapp et al.
patent: 6113347 (2000-09-01), Forrester
patent: 6254343 (2001-07-01), Schmidt et al.
patent: 6270313 (2001-08-01), Chuang et al.
patent: 6398492 (2002-06-01), Cho et al.
patent: 6499948 (2002-12-01), Iyer et al.
patent: 19860515 (2000-06-01), None
patent: 59168300 (1984-09-01), None
Cho Kyung-Seok
Min Ok-Ryul
Park Chang-Ho
Park Se-Young
Halla Climate Control Corporation
Lowe Hauptman & Berner LLP
Verdier Christopher
LandOfFree
Fan and shroud assembly 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 shroud assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fan and shroud assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3373042