MODIFIED SPUR GEARING Russian patent published in 1997 - IPC

Abstract RU 2093741 C1

FIELD: helicopter gear trains. SUBSTANCE: engagement parameters of spur gear wheel are modified in order to reduce level of vibration caused by nonuniform thermal expansion of gearbox housing. Chordal addendum of engageable spur gear wheels is increased by definite magnitude on basis of calculated relative radial misalignment of its axes due to nonuniform thermal expansion to create modified engagement of spur gear wheels at increased outer diameter. EFFECT: enhanced efficiency. 3 cl, 15 dwg

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RU 2 093 741 C1

Authors

Met'Ju T.Khejdak[Us]

Ehrik V.Dzhehkobs[Us]

Dates

1997-10-20—Published

1993-02-10—Filed