Centrifugal fan

Details Centrifugal fan Centrifugal fan

2011-06-28

2011-06-28

Freay, Charles G (Department: 3746)

Pumps

Motor driven

Motor within rotary pumping member

C417S423100, C415S206000

Reexamination Certificate

active

07967575

ABSTRACT:
An arrangement of a low air inlet and a circuit for driving a torque generator in an ultra-compact centrifugal fan is disclosed. In the ultra-compact centrifugal fan, a region occupied by the circuit is not completely arranged radially inside a cup-shaped portion to which an impeller is attached. At least a part of the low air inlet provided on a bottom of a housing of the centrifugal fan is arranged in a range of predetermined angle in an imaginary ring-shaped portion surrounding a base portion covered by the cup-shaped portion. A part of the circuit, that is not covered by the cup-shaped portion, is arranged upstream of the range of the predetermined angle in a flowing direction of airflow.

REFERENCES:
patent: 5701045 (1997-12-01), Yokozawa et al.
patent: 7063510 (2006-06-01), Takeshita et al.
patent: 7248473 (2007-07-01), Ohnishi et al.
patent: 2001/0036416 (2001-11-01), Obara
patent: 2002/0057022 (2002-05-01), Yamamoto
patent: 2004/0123978 (2004-07-01), Hashimoto et al.
patent: 2005/0058543 (2005-03-01), Takeshita et al.
patent: 2007/0020085 (2007-01-01), Takemoto
patent: 20106595 (2001-10-01), None
patent: S62-115772 (1987-07-01), None
patent: H07-111756 (1995-04-01), None
patent: 2001-241395 (2001-09-01), None
patent: 2002-291194 (2002-10-01), None

Affiliated with

Also associated with

Rating

Centrifugal fan does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2741094