PROPELLER FAN, PROPELLER FAN MOLDING MOLD, AND FLUID FEEDING DEVICE

Title:

PROPELLER FAN, PROPELLER FAN MOLDING MOLD, AND FLUID FEEDING DEVICE

Document Type and Number:

WIPO Patent Application WO/2002/002950

Kind Code:

A1

Abstract:

A propeller fan (1) which is so designed that with z-axis defined by the rotational shaft of the propeller fan (1) and with (r, $g(u), z) used as coordinates in a cylindrical coordinate system, a curved surface shape defined by a predetermined r-coordinate, $g(u)-coordinate and z-coordinate is used as the base shape of the surface of a vane (3) of the propeller fan (1), and the surface of the vane (3) of the propeller fan (1) is formed by a curved surface which is obtained by scaling up or down the base shape in at least one of the r-, $g(u)- and z-directions.

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Inventors:

OHTSUKA MASAKI (JP)

Application Number:

PCT/JP2001/005777

Publication Date:

January 10, 2002

Filing Date:

July 03, 2001

Export Citation:

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Assignee:

SHARP KK (JP)
OHTSUKA MASAKI (JP)

International Classes:

F04D29/38; B29C45/26; (IPC1-7): F04D29/38

Foreign References:

JPS6165098A	1986-04-03
JPH10159795A	1998-06-16
JPH10159795A	1998-06-16

Other References: