Shut-off system for the avoidance of an overspeed condition...

Details Shut-off system for the avoidance of an overspeed condition... Shut-off system for the avoidance of an overspeed condition...

2006-09-05

2006-09-05

Kim, Ted (Department: 3746)

Power plants

Combustion products used as motive fluid

With safety device

C060S223000, C073S488000

Reexamination Certificate

active

07100354

ABSTRACT:
A mechanical-electronic shut-off system detects a shaft failure and initiates the shut-off of the fuel supply. It features, on the free end of a reference shaft (2) connected the to energy-consuming end of the respective shaft (1), an axially moveable signal trip element (13, 14) held under pre-load (12) whose locking arrangement (17,18) is released via a radial driver arrangement (17, 19) by rotary movement in the event of a shaft failure. The resultant relative rotation of the shaft (1) enables the signal trip element to move towards a sensor (21) or a switching element. An electric signal so produced instantly interrupts the further supply of fuel by means of an electronic control and avoids or controls a dangerous overspeed condition of the failed shaft.

REFERENCES:
patent: 2359899 (1944-10-01), Conant
patent: 3032985 (1962-05-01), Alexander et al.
patent: 4473998 (1984-10-01), King
patent: 4712372 (1987-12-01), Dickey et al.
patent: 19727296 (1999-01-01), None
patent: 872654 (1961-07-01), None
patent: 2377731 (2003-01-01), None

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