FIELD: engines and pumps.
SUBSTANCE: proposed system comprises drive element to revolve control ring of one of the stages by means of drive member arranged to turn on the casing, synchro lever to transmit aforesaid lever rotation to control ring of the other stage by means of servo element arranged to turn on aforesaid casing, and additional rotary member arranged between servo element and driven ring. Note here that said additional rotary member is arranged to turn simultaneously on the casing and said servo element and is coupled with engine casing with the help of roller sliding in the groove rigidly coupled with said engine casing.
EFFECT: possibility to implement whatever law of vane mounting variation irrespective of law complicated nature.
5 cl, 3 dwg
