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AssigneeLG Electronics Inc.
InventorsCheol O. Ahn, Sim Won Chin, Chang Seon Lee, Mun Kee Chung, In Cheol Yun, Dong Soo Moon, In Hwa Jung
Estimating the term…
Cross flow fan, and air conditioner fitted with the same, the cross flow fan including a plurality of annular rims arranged at regular intervals along a horizontal direction, and a plurality of blades on a side surface of the rim vertical thereto, and along a circumference direction of the rim, wherein pitch angles between two adjacent blades are not regular, the pitch angle taking a center of the rim as an apex, and a number of blades are 32 or 35. The pitch angles of the blades are designed by a computer optimization method taking a number of the blades and the like as parameters.
A cross flow fan comprising:
An air conditioner comprising;
A cross flow fan with 32 blades arranged according to a table in FIG. 6 having a relation of
A cross flow fan with 35 blades arranged according to a table in FIG. 8 having a relation of
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
The leading edge of each vane being substantially parallel to the rotation axis: rotors of the squirrel-cage type
Blades: form or construction
Form or construction: for counteracting blade vibration
Having non-centrifugal stages, e.g. centripetal: of transverse-flow type
Term end not estimated
This application claims the benefit of the Korean Application No. P2002-20678 filed on Apr. 16, 2002, which is hereby incorporated by reference.
1. Field of the Invention
The present invention relates to cross flow fans, and more particularly, to a cross flow fan with unequal pitches, and an air conditioner fitted with the same.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention:
In the drawings:
FIG. 1 illustrates a diagram showing an inside structure of a separated type air conditioner, schematically;
Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In describing the embodiments of the present invention, same parts will be given the same names and reference symbols, and repetitive description of which will be omitted.
Referring to FIG. 5, the cross flow fan 20 of the present invention includes a plurality of rims 23 arranged at equal distances along a horizontal direction, and a plurality of blades 22 on a side surface of the rim 23 vertical thereto, and along a circumference direction of the rim 23.
The blades 22 are arranged such that pitch angles Pn between two adjacent blades 22 are not regular when a center of the rim 23 is taken as an apex.