Patent ID: 8328676
Filing Date: 2012-12-11
Classification: F16H

Abstract:
1. A power split transmission comprising a continuously variable branch and a mechanical branch, the continuously variable and the mechanical branches being summed with one another by a summing gear set ( 13 ) designed as a planetary gear set, the transmission having at least first and second operating ranges that can be switched via first and second operating range clutches ( 26 , 29 ), and a forward drive clutch ( 4 ) and a reverse drive clutch ( 8 ), and shafts ( 32 , 33 ) on which gears ( 27 , 25 , 28 , 30 ) and the first and the second operating range clutches ( 26 , 29 ) being supported, only one of the clutches ( 4 , 8 ; 26 , 29 ) being supported on each shaft ( 2 , 7 ; 32 , 33 ), and the shafts ( 2 , 7 ; 32 , 33 ) being positioned spaced apart from one another, the summing gear set ( 13 ) comprising a ring gear ( 15 ) and at least one double planetary gear ( 14 ) supported by a planet carrier ( 12 ) and engaged with the ring gear ( 15 ), and first and second sun gears ( 16 , 17 ), and the planet carrier ( 12 ) being connected to an input drive ( 2 ) via the forward drive clutch ( 4 ) and the reverse drive clutch ( 8 ); and at least one consumer (