Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Radially extending web or end plate
Reexamination Certificate
2007-10-16
2007-10-16
Nguyen, Ninh H. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Radially extending web or end plate
C416S22300B, C416S22300B, C415S206000
Reexamination Certificate
active
11009037
ABSTRACT:
Disclosed herein is a blowing apparatus for refrigerators. The blowing apparatus includes a centrifugal fan. The centrifugal fan comprises a hub plate connected to a shaft of the motor, a plurality of blades attached to the hub plate in the radial direction of the hub plate for forcing cool air to flow, and a ring-shaped shroud connected to ends of the blades. The ratio of the inner diameter of the centrifugal fan, formed through connection of the inner ends of the blades, to the outer diameter of the centrifugal fan, formed through connection of the outer ends of the blades, is 0.63±0.01. With the blowing apparatus for refrigerators according to the present invention, flow loss is minimized. Consequently, the present invention has the effect that energy consumption is reduced, noise is decreased, and thus the refrigerator is quietly operated.
REFERENCES:
patent: 3316729 (1967-05-01), Mann et al.
patent: 3766750 (1973-10-01), Aoh et al.
patent: 5964576 (1999-10-01), Fujita et al.
patent: 6042335 (2000-03-01), Amr
patent: 6299409 (2001-10-01), Matsunaga et al.
patent: 6558120 (2003-05-01), Kim et al.
patent: 6769876 (2004-08-01), Sakai et al.
Baek Seung Jo
Jung Young Gyu
Kim Chang Joon
Birch & Stewart Kolasch & Birch, LLP
LG Electronics Inc.
Nguyen Ninh H.
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