Fluid-displacement apparatus especially a blower

Details Fluid-displacement apparatus especially a blower Fluid-displacement apparatus especially a blower

1994-01-11

1995-12-12

Bertsch, Richard A.

Pumps

Motor driven

Pump within rotary working member

4174238, 310 63, F04B 3504

Patent

active

054744296

ABSTRACT:
A fluid-displacement apparatus, especially a blower, has a stator of an electric motor directly driving the impeller integrated in the flow passage housing while the rotor of the electric motor is surrounded by the stator and is mounted on the ends of the blades of the impeller or propeller.

REFERENCES:
patent: 1347732 (1920-07-01), Cooper
patent: 3422275 (1969-01-01), Braikevitch
patent: 4831297 (1989-05-01), Taylor et al.
patent: 4862023 (1989-08-01), Laumond et al.
patent: 4949022 (1990-08-01), Lipman
patent: 4962734 (1990-10-01), Jorgensen
patent: 5079488 (1992-01-01), Harms et al.

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