Rotary blower with guide sleeve

Details Rotary blower with guide sleeve Rotary blower with guide sleeve

1987-09-01

1988-10-25

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

With sound or vibratory wave absorbing or preventing means...

415197, 415210, F04D 2966

Patent

active

047800526

ABSTRACT:
A blower has a tubular air flow guiding sleeve. An electric motor is located coaxially within the sleeve in a casing connected to the sleeve by flow-straightening blades and a propeller is fixed to a rotary shaft of the motor and placed in front of the blades. A central unit comprises the tubular casing constituting a single casting with the blades and a part of said sleeve surrounding the propeller. A length of that part around the propeller is machined concentrically to an inner surface of said casing slidably receiving the stator of the motor. A PTFE ring may be located in a recess of the sleeve in radial alignment with the propeller blade tips.

REFERENCES:
patent: 2308685 (1943-01-01), Hagen
patent: 2879936 (1959-03-01), Faught
patent: 3089637 (1963-05-01), Bell
patent: 3547455 (1970-12-01), Daunt
patent: 3976393 (1976-08-01), Larson
patent: 4475867 (1984-10-01), Smith
patent: 4508486 (1985-04-01), Tinker

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