DRIVE MECHANISM AND TURBOMACHINE OF AIRCRAFT, COMPRISING SUCH A MECHANISM Russian patent published in 2019 - IPC F01D17/16 F04D29/56 

FIELD: machine building.

SUBSTANCE: drive mechanism for driving the first and second adjustment elements serving to adjust the orientation of the blades of the first and second straightening stages of the turbomachine, respectively, includes means for simultaneous driving of both adjusting elements. Means for driving both adjusting elements include drive wheel made with possibility of simultaneous actuation of first and second adjusting element, as well as two stages of gearing. Gearing stages are located between drive wheel and one of first adjusting element and second adjusting element and have different gear ratios. Gear stage ratio related to second adjusting element varies depending on angular position of drive wheel in turbo machine. Another invention of the group relates to an aircraft turbomachine, comprising two straightening steps, each having a control element, wherein both adjusting elements are rotatable about an axis in a turbomachine and driven by said drive mechanism.

EFFECT: group of inventions allows reducing the weight of the drive mechanism.

9 cl, 1 dwg