Flow bench

Details Flow bench Flow bench

1979-01-11

1980-07-22

Goldberg, Gerald

Measuring and testing

With fluid pressure

Porosity or permeability

G01M 302

Patent

active

042133270

ABSTRACT:
A flow bench includes a sealed box with an internal plenum having air flow from a source of pressure directed to several spaced points within the plenum; the sealed box includes an open upper end having a support surface around the open end including undercut spaced parallel grooves at an offset point thereon supporting a pair of seals in sealing engagement with the outer perimeter of a laminated porous panel that completely covers the open end; the flow bench further includes a removable cover. The removable cover includes a peripheral seal plate thereon with an undercut shoulder that accommodates the perimeter of the laminated porous panel and including a groove with a single O-ring therein located above one of the pair of O-ring seals and a plurality of clamp means being provided to bias the seal plate against the outer perimeter of the laminated porous panel to seal the member at the top, bottom and outer surface thereof whereby the air flow through the plenum passes only through the pores of the laminated porous panel thereby to prevent significant sources of error produced by small leakage from other points means are associated with the fluid flow to the plenum to measure the flow rate through the pores of the laminated porous panel to establish an absolute quantitative measurement of flow rate therethrough.

REFERENCES:
patent: 2993368 (1961-07-01), Schlein
patent: 3248930 (1966-05-01), Speegle et al.
patent: 3371518 (1968-03-01), Keyes
patent: 3466925 (1969-09-01), Ziegenhagen et al.
patent: 3590634 (1971-07-01), Pasternak et al.

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