Baffle for reducing airflow noise in a scroll housing

Details Baffle for reducing airflow noise in a scroll housing Baffle for reducing airflow noise in a scroll housing

1991-06-20

1992-06-09

Look, Edward K.

Rotary kinetic fluid motors or pumps

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

415206, 4152083, F01D 500, F01D 2500

Patent

active

051201933

ABSTRACT:
A scroll housing includes a spiral portion and an outlet portion. A blower fan is mounted on the spiral portion and rotated to draw an axial air current into the scroll housing. The airflow is channeled away from the scroll housing by the outlet portion which is tangentially aligned with the blower fan. A baffle is mounted on an interior surface of the spiral portion upstream from a cutoff provided adjacent the intersection of the spiral portion and the outlet portion. The baffle projects into the exiting airflow from the blower fan and reduces airflow noise.

REFERENCES:
patent: 4078870 (1978-03-01), Keller et al.
patent: 4470753 (1984-09-01), Witzel
patent: 4494908 (1985-01-01), Hopfensperger
patent: 4680006 (1987-07-01), Fisher
patent: 4705453 (1987-11-01), Hopfensperger
patent: 4712976 (1987-12-01), Hopfensperger et al.
patent: 4799287 (1989-01-01), Belanger et al.

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