Power plants – Reaction motor – Interrelated reaction motors
Patent
1984-12-26
1986-05-06
Croyle, Carlton R.
Power plants
Reaction motor
Interrelated reaction motors
188 823, 188 8234, F02K 302
Patent
active
045863296
ABSTRACT:
Those gas turbine engines which have reserver cascades covered by a translatable cowl portion when reverse thrust is not required, may undergo inadvertent translating of the cowl portion on take off or cruise with consequent disasterous results. The invention provides an anti rotation mechanism which prevents rotation of the shafts and gearing commonly used for translation of the cowl, in the direction which results in uncovering of the cascades. The mechanism comprises a rod movable to a position closely adjacent a gear shaft which is part of the translation system, a bar mounted in the end of the rod for pivoting and reciprocatory movement and abutments on the gear shaft. When the shaft rotates to bring about closure of the cowl, the rod at the point of near closure is moved closely adjacent to the shaft. The bar will ride over the abutments hence the pivoting reciprocatory movement, on closure, if the shaft attempts rotation in the opposite direction, the bar will foul the flat face of one of the abutments.
REFERENCES:
patent: 1185972 (1916-06-01), Brown
patent: 4183260 (1980-01-01), Wagner et al.
patent: 4191377 (1980-03-01), Burnside
patent: 4390085 (1983-06-01), Downing et al.
Croyle Carlton R.
Rolls-Royce Limited
Stout Donald E.
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