Variable coaxial shaft for hydraulic unit
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United States of America Patent
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Jul 25, 2017
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N/A
app pub date -
Mar 20, 2015
filing date -
Mar 20, 2015
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Abstract
A variable coaxial shaft for a hydraulic unit includes a shaft body having a variable input shaft interface to drive rotation of a variable input shaft of the hydraulic unit. The variable coaxial shaft also includes a differential assembly interface having a first sealing interface, a second sealing interface, and one or more lubrication ports between the first sealing interface and the second sealing interface. The differential assembly interface is configured to be driven by a differential assembly. The one or more lubrication ports provide a lubrication path to the differential assembly. A shaft length is defined between a first end of the variable input shaft interface and a second end of the differential assembly interface. A ratio of the shaft length to a shaft diameter of the shaft body is between 18.65 and 19.12.
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