Fire and explosion detection and suppression

Details Fire and explosion detection and suppression Fire and explosion detection and suppression

1986-11-25

1988-01-19

Nase, Jeffrey V.

Fire extinguishers

Special applications

Condition responsive control

340578, 169 23, A62C 3704

Patent

active

047199733

ABSTRACT:
A fire and explosion detection and suppression system protects a hangar within which may be stored jet aircraft whose engines may be run up particularly in the re-heat mode. Two radiation sensors are mounted within the hangar and detect for at least predetermined amounts of radiation of predetermined and different types (e.g. one sensor may be a UV sensor and the other may be an IR sensor). When they simultaneously detect sufficient radiation, they operate an AND gate. This fires off suppressor units. To prevent false alarms due to radiation emitted by a running jet engine or a jet engine running in re-heat mode, such a running jet engine is sensed by a transducer responsive to the emitted acoustic or vibrational energy. This blocks the AND gate.

REFERENCES:
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patent: 3716717 (1973-02-01), Scheidweiler et al.
patent: 3825754 (1974-07-01), Cinzori et al.
patent: 4280058 (1981-07-01), Tar
patent: 4401976 (1983-08-01), Stadelmayr
patent: 4414542 (1983-11-01), Farquhar et al.
patent: 4423326 (1983-12-01), Ball
patent: 4472715 (1984-09-01), Kern et al.

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