Patent ID: 7416502

Claim:
A hydrostatic, mechanical, split-power transmission with a continuously variable gear ratio which includes a hydrostatic part ( 1 ) comprising a first hydrostatic unit (B) with a variable volume and a second hydrostatic unit (A) with a constant volume and a mechanical part ( 2 ) comprising a summarizing transmission and a range change transmission; wherein the summarizing transmission and the range change transmission are axially staggered relative to the first hydrostatic unit (B) and the second hydrostatic unit (A) with a first clutch, a second clutch, a third clutch, and a fourth clutch (K 1 , K 2 , K 3 , KR) for a plurality of spur gear steps of the range change transmission, the first, the second, the third, and the fourth clutches (K 1 , K 2 , K 3 , KR) are located on an output shaft ( 5 ), the first clutch (K 1 ) releasably connects the output shaft ( 5 ) via a third spur gear step ( 9 ), the second clutch (K 2 ) releasably connects the output shaft ( 5 ) with a spur gear ( 13 ) of a first planetary gearset (P 1 ) via a fourth spur gear step ( 14 ), the third clutch (K 3 ) releasably connects the output shaft ( 5 ) with a planet carrier of a second planetary gearset (P 2 ) via a fifth spur gear step ( 15 ) and the fourth clutch (KR) releasably connects the output shaft ( 5 ) with a planet carrier of the first planetary gearset (P 1 ) via an intermediate gear.