Method and means for controlling the air pressure in a sound-pro

Details Method and means for controlling the air pressure in a sound-pro Method and means for controlling the air pressure in a sound-pro

1974-06-25

1976-03-02

Gonzales, John F.

Acoustics

Auditorium

E04H 644, F02K 126

Patent

active

039412059

ABSTRACT:
A method and means of controlling the air pressure in a sound-proofed hangar in which jet engines are tested, the amount of cooling air sucked into the exhaust gas silencer by the injection action of the exhaust gas jet being adjusted by varying the flow resistance or the free flow cross-section of the area difference between the inlet cross-section of the exhaust gas silencer and the exhaust jet cross-section by inserting screens so that the pressure in the sound-proofed hangar does not drop below a predetermined value.

REFERENCES:
patent: 2979151 (1961-04-01), Blackwell et al.
patent: 3349868 (1967-10-01), Kurtze

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