Reliable over-temperature control circuit

Details Reliable over-temperature control circuit Reliable over-temperature control circuit

1980-10-14

1982-02-09

Miller, J. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

60 3928T, 307360, 340588, H02H 504

Patent

active

043152961

ABSTRACT:
A turbine engine over-temperature shut-off control circuit includes a series of separate timing circuits and output control signal generation gates. A corresponding set of temperature set-point triggering comparator circuits apply energization signals to their associated timing circuits and gates, to define a temperature vs. time envelope, which turns the turbine off when the turbine has been at a predetermined dangerously high temperature for more than a predetermined length of time.

REFERENCES:
patent: 3931619 (1976-01-01), Moore et al.
patent: 4115998 (1978-09-01), Gilbert et al.
patent: 4148086 (1979-04-01), Landa et al.

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