Transmission arrangement
First Claim
1. Transmission arrangement, including a continuously variable toroidal drive mechanism, an intermediate planetary gear train and a final planetary gear train arranged in a power path between an input shaft and an output shaft, comprising:
- a central intermediate shaft which is connected to the input shaft and to a central toroidal drive disc of the toroidal drive mechanism and to a planet carrier of the intermediate gear train, a concentric intermediate shaft through which the central intermediate shaft extends, which is connected to a central driven disc of the toroidal drive mechanism and to a sun gear of the intermediate gear train, which has a drive connection to a first mechanism link of the final gear train in the form of a second sun gear a first outer ring of the intermediate gear train which has a drive connection to a second mechanism link of the final gear train in the form of a second ring gear a third mechanism link of the final gear train in the form of a planet carrier which is fixed so that it cannot rotate in relation to a non-rotating housing part, and a fourth mechanism link of the final gear train in the form of a third ring gear which has a drive connection to the output shaft.
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Accused Products
Abstract
In a transmission arrangement including a continuously variable toroidal drive mechanism, an intermediate planetary gear train and a final planetary gear train which are arranged in the power path between an input shaft and an output shaft, a central intermediate shaft is connected to the input shaft and to a central drive disc of the toroidal drive mechanism, and to a planet carrier of the intermediate gear train. A concentric intermediate shaft, through which the central intermediate shaft extends, is connected to a central driven disc of the toroidal drive mechanism and to a sun gear of the intermediate gear train. The concentric intermediate shaft has a drive connection to a first mechanism link of the final gear train in the form of a sun gear. An outer ring gear of the intermediate gear train has a drive connection to a second mechanism link of the final gear train. A third mechanism link of the final gear train is mounted on a housing part. A fourth mechanism link of the final gear train has a drive connection to the output shaft, this arrangement providing for high efficiency with a coaxial arrangement of the transmission components.
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Citations
21 Claims
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1. Transmission arrangement, including a continuously variable toroidal drive mechanism, an intermediate planetary gear train and a final planetary gear train arranged in a power path between an input shaft and an output shaft, comprising:
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a central intermediate shaft which is connected to the input shaft and to a central toroidal drive disc of the toroidal drive mechanism and to a planet carrier of the intermediate gear train, a concentric intermediate shaft through which the central intermediate shaft extends, which is connected to a central driven disc of the toroidal drive mechanism and to a sun gear of the intermediate gear train, which has a drive connection to a first mechanism link of the final gear train in the form of a second sun gear a first outer ring of the intermediate gear train which has a drive connection to a second mechanism link of the final gear train in the form of a second ring gear a third mechanism link of the final gear train in the form of a planet carrier which is fixed so that it cannot rotate in relation to a non-rotating housing part, and a fourth mechanism link of the final gear train in the form of a third ring gear which has a drive connection to the output shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21)
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17. Transmission arrangement, in which a continuously variable toroidal drive mechanism an intermediate planetary gear train and a final planetary gear train are arranged in a power train between an input shaft and an output shaft,comprising:
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a central intermediate shaft which is connected to the input shaft and to a central toroidal drive disk of the toroidal drive mechanism and to a planet carrier of the intermediate gear train a concentric intermediate shaft through which the central intermediate shaft extends which is connected to a central driven disk of the toroidal drive mechanism a first sun gear of the intermediate gear train which is connected to the concentric intermediate shaft a second sun gear of the intermediate gear train which has a drive connection to a first mechanism link of the final gear train a second mechanism link of the final gear train which in its braked condition reverses the direction of rotation between the first mechanism link and a third mechanism link of the final gear train a first outer ring gear of the intermediate gear train which has a drive connection to the third mechanism link of the final gear train a drive connection between the output shaft and one of the mechanism links of the final gear train that can be made to rotate in the opposite direction a planet wheel of the intermediate gear train which has a toothed rim with a larger number of teeth which meshes with the second sun gear of the intermediate gear train having a smaller number of teeth and a drive connection to the first mechanism link of the final gear train, and which has a toothed rim with a smaller number of teeth which meshes with the sun gear of the intermediate gear train having a larger number of teeth and connected to the concentric intermediate shaft.
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Specification