Noise reduced centrifugal blower

Details Noise reduced centrifugal blower Noise reduced centrifugal blower

1992-10-07

1994-08-09

Look, Edward K.

Rotary kinetic fluid motors or pumps

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

4152141, 417312, F04D 2966

Patent

active

053360460

ABSTRACT:
A blower of an automotive air conditioner has a lower casing a part of which is formed is a plastic housing for a motor and a porous member in the form of a flat plate disposed at a position where the plastic housing and an upper casing of the blower abut against each other. An air layer is defined between the flat-plate porous member and the lower casing to add a muffling function.

REFERENCES:
patent: 3312389 (1967-04-01), Matsui
patent: 3360193 (1967-12-01), Harris et al.
patent: 3485443 (1969-12-01), Earhart
patent: 3938905 (1976-02-01), Wadensten
patent: 5199846 (1993-04-01), Fukasaku et al.

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