FIELD: transport.
SUBSTANCE: proposed gear box comprises step aligned three-shaft reduction gear, ordinary three-link planetary mechanism to allow two operating conditions, and four clutches. Said aligned three-shaft reduction gear incorporates eight forward gears and two rows of reverse gears. Inner support of input shaft is arranged in secondary shaft tip to rule out input support at engine crankshaft end face.
EFFECT: expanded performances of heavy vehicles.
2 dwg
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