Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Vane or deflector
Patent
1995-06-23
1996-11-26
Larson, James
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Vane or deflector
4152112, 415220, 416189, 416238, 165122, F04D 2938, F04D 2954
Patent
active
055778887
ABSTRACT:
A high efficiency fan and stator arrangement for generating an airflow through a heat exchanger is disclosed herein. The fan is rotated about its rotational axis by an electric motor, and includes eight blades extending radially from a hub to a circular band. Each fan blade has a stagger angle and chord lengths which vary along the span of the blades. Each fan blade also includes a trailing edge having a flat surface extending along the edge. The flat surfaces of each fan blade are coincident with a plane perpendicular to the rotational axis. The fan produces an airflow when rotated about the rotational axis, wherein a component of the airflow occurs at a first angle to the rotational axis. The fan support has a central bearing support and twenty elongated airfoils extending radially outward from the bearing support. Each airfoil has substantially the same length as the fan blades and includes a curved airflow guiding surface having a leading edge and a trailing edge downstream from the leading edge. The curve of the guiding surface is a generally circular arc with a tangent to the guiding surface at the leading edge substantially at the first angle to the rotational axis, and a tangent to the trailing edge at a second angle to the rotational axis less than the first angle. The fan support is located downstream of the heat exchanger to guide the airflow produced by the fan through the heat exchanger.
REFERENCES:
patent: 16547 (1857-02-01), Marshall
patent: 562020 (1896-06-01), Peabody
patent: 1062258 (1913-05-01), Schlotter
patent: 1408715 (1922-03-01), Seelig et al.
patent: 1795588 (1931-03-01), Wilson
patent: 1993158 (1935-03-01), Funk
patent: 2154313 (1939-04-01), McMahan
patent: 2219499 (1940-10-01), Troller
patent: 2397169 (1946-03-01), Troller et al.
patent: 2628019 (1953-02-01), Koch
patent: 2687844 (1954-08-01), Woodward
patent: 3168235 (1965-02-01), Valdi
patent: 3173604 (1965-03-01), Sheets et al.
patent: 3481534 (1969-12-01), Price
patent: 3680977 (1972-08-01), Rabouyt et al.
patent: 3995970 (1976-12-01), Nobuyuki
patent: 4181172 (1980-01-01), Longhouse
patent: 4329946 (1982-05-01), Longhouse
patent: 4358245 (1982-11-01), Gray
patent: 4396351 (1983-08-01), Hayashi et al.
patent: 4459087 (1984-07-01), Barge
patent: 4548548 (1985-10-01), Gray, III
patent: 5244347 (1993-09-01), Gallivan et al.
patent: 5326225 (1994-07-01), Gallivan et al.
patent: 5399070 (1995-03-01), Alizadeh
Axial Flow Fans and Ducts, R. A. Wallis, John Wiley & Sons, 1983. Sec. 7.5, 8.7, 15.1, 15.2, 16.3.1.
Axial Flow Fans Design and Practice, R. A. Wallis, Academic Press, 1961. Sec. 1.2, 1.3, 1.4, 1.5, 7.6, 7.7, 11.1, 17.2.2, 17.2.3, 17.2.4.
Fluid Mechanics, Thermodynamics of Turbomachinery, S. L. Dixon, Pergamon Press, 1966. pp. 104-109, 124-125.
Computational Fluid Dynamics Analysis of Axial Flow Fans for Automotive Cooling Systems, H. Capdevila, J. Pharoah, Siemens Electric Ltd., London, Ontario, Canada.
Bartlett Eric
Capdevila Hugo
Gallivan William
Pharoah John
Larson James
Siemens Electric Limited
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