FIELD: transport.
SUBSTANCE: invention relates to aircraft engineering, particularly, to devices for propeller pitch adjustment. A device with opposite rotation propellers having a propeller pitch control system contains a pair of opposite rotation propellers with variable pitch. Pitch can be changed by means of a driving gear (31) located in the central cavity of shafts. A system for power delivery to the driving gear (31) contains a feed line (34) passing into a static body (5) close to an epicycloidal gear (17), control lines (38) which come up to the driving gear (31) and pass through a pinion carrier (14) of the epicycloidal gear (17). Connection is implemented via a seal for movable couplings with a collector. Such feed permits to avoid high-temperature turbines usage. The driving gear can be electric, where the seals for movable couplings represent the seals for electric connections. The feed system contains lubrication lines (51) which go from a circular manifold to support bearings (44) of the pinion gears (15) on the carrier (14).
EFFECT: better driving gear characteristics due to lower operating temperature.
5 cl, 6 dwg
