F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
60/151, 170/65
F02C 9/00 (2006.01) F01D 17/16 (2006.01)
Patent
CA 1062024
THERMALLY COMPENSATED VARIABLE TURBINE NOZZLE POSITION INDICATOR A B S T R A C T A movable vane assembly varies the effective cross- sectional area of an annular nozzle through which gas flows in a gas turbine engine or compressor. An improved temperature independent means is provided for indicating the rotational position of a plurality of radially aligned vanes of the assembly. The improved temperature independent means comprises a potentiometer having a body and a stem rotable with respect to the body with the resistance of the potenti- ometer being a function of the relative angular position between the body and the stem. The body rotates a first distance in a first direction responsive to a first change in size of a first link. The stem rotates said first distance in said first direction responsive to a second change in size of a second link which is proportional to said first change in size. Means are provided indicating the resis- tance of the potentiometer and thereby the rotational position of the vanes.
286317
Gebhart Daniel E.
Meints Edward G.
Smith Brace C.
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