Anticipating overspeed governor

Details Anticipating overspeed governor Anticipating overspeed governor

1988-06-27

1990-02-20

Nilson, Robert G.

Fluid handling

Speed responsive valve control

Acceleration responsive valve control

73512, 416 36, G05D 1334

Patent

active

049017462

ABSTRACT:
A speed responsive control device is useful for preventing a dangerous overspeed condition of a propulsor. The device begins governing before the dangerous overspeed condition occurs through the use of an acceleration responsive mechanism which actuates the spool of a governor pilot valve. The spool is also actuated by a speed responsive mechanism in the form of a flyweight governor. The control device thus anticipates dangerous overspeed conditions to make necessary adjustments such as blade pitch corrections, to prevent a dangerous overspeed condition.

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patent: 2472181 (1949-06-01), Werth
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patent: 3322471 (1967-05-01), Faiver et al.
patent: 3370600 (1968-02-01), Peterson
patent: 3831615 (1974-08-01), Hartzell
patent: 3945199 (1976-03-01), Bradley et al.
patent: 3955424 (1976-05-01), Williams
patent: 4123942 (1978-11-01), Rumyantsev
patent: 4164235 (1979-08-01), Benson

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