GEAR REVERSE REDUCER Russian patent published in 2015 - IPC F16H3/93 B63H23/06 

FIELD: machine building.

SUBSTANCE: gear reverse reducer includes oil system with control pump and connecting couplings (4, 13) at output ends of the drive (2) and output (11) shafts. Couplings (14, 15, 16) with hydraulic control are build in the gear wheel (6) of the forward motion intermediate shaft (5), and in gear wheel (9) and pinion (10) of rear motion intermediate shaft (8). The rear motion intermediate shaft (8) is additionally equipped with brake friction coupling (17).

EFFECT: improved reliability of operation of gear reversing reducer with hydraulically controlled friction couplings in it, used to transfer the torque from high-speed, for example, gas turbine engine to fixed pitch propeller by reducing the relative rotation speed of the frictions in the friction couplings with hydraulic control installed in gear wheels and pinions of the reducer.

2 dwg