A Multiple Critical Flow Venturi Airflow Metering System for Gas Turbine Engines

[+] Author and Article Information
C. R. Varner

Pratt & Whitney Aircraft, Division of United Aircraft Corp., East Hartford, Conn.

J. Basic Eng 92(4), 792-795 (Dec 01, 1970) (4 pages) doi:10.1115/1.3425139 History: Received July 30, 1969; Online October 27, 2010


An air metering system has been constructed using an array of critical flow venturis. By plugging individual venturis, the total metering area is varied to provide an airflow range from 25 lb per sec to 1200 lb per sec. A unique flow control valve and air straightening section provides low air velocity distortion at the entrance to the meter.

Copyright © 1970 by ASME
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