INTEGRATED ELECTRO-HYDRAULIC UNIT
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Sep 27, 2023
filing date -
Sep 27, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
An integrated electro-hydraulic unit including an electric machine having a stator and a rotor. The integrated electro-hydraulic unit includes a hydraulic machine having a shaft configured to rotate around a central axis and a cylinder block coupled to the shaft. The cylinder block includes a plurality of bores receiving a plurality of pistons. The cylinder block is configured to rotate about the central axis to generate reciprocating movement of the plurality of pistons within the plurality of bores. The cylinder block and the shaft are coupled for rotation via a joint that accommodates bending of the shaft while maintaining a parallel orientation of the cylinder block with respect to the central axis. The joint is defined by a barrel-shaped portion of the shaft and a corresponding interior receiving portion of the cylinder block.
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