ENGINE TURNING AND STARTING DEVICE OF GAS TURBINE PLANT Russian patent published in 2016 - IPC F02C7/32 F01D25/34 

FIELD: machine building.

SUBSTANCE: engine turning and starting device of gas turbine plant comprises drive motor, reduction gear and overrunning clutch compressor rotor. Gearbox contains specialised coaxial gearbox with pairs of inter-engaged gears and simple three-link planetary mechanism. At the input shaft gearbox two gears are freely installed between them is fixed first gear rim with three position clutch, and a tubular output shaft with freely mounted gears. On the front end of the tubular output shaft is fixed gear rim with three position clutch, at the second rim of this shaft there is a double two-position clutch with internal freely installed gear rim. Near the second ring gear of the tubular shaft are the second ring gear input shaft, toothed rims of drive shaft of the Sun gear and tubular shaft drive carrier of planetary gear. Satellites located on axles, engaged with Sun gear, as well as with epicyclic wheel, which is fixed on the output tubular shaft with rim next to it there is a rim of the output shaft of carrier. Two-position clutch is installed on the rim of the wall of the gearbox casing near the rim of the tubular shaft epicyclic wheel. Coaxially to the output shaft of carrier reduction gear output shaft is arranged with ring gear and two-position of double clutch. At the input shaft near the first ring gear of the tubular output shaft freely installed gear. Two gears are located on axis installed parallel to the input shaft. Gears between blocks of two-position shift collar is arranged with oppositely turned half-couplings, interconnected general shift yoke.

EFFECT: invention allows increasing the number and range of gear ratio turning gear and starting device.

1 cl, 2 dwg