To achieve a target output RPM of 1500 from an input RPM of 10, a speed-increasing gearbox with at least three stages is necessary to provide a 150x increase in RPM. Significant power losses must be considered, and the specific application will dictate the required torque at 1500 RPM. A potential solution involves using a large shaft hydraulic pump driving a small shaft hydraulic motor, where the pump has 150 times the displacement of the motor. Additionally, Föttinger clutches and torque converters, commonly used in automotive applications, may also be relevant but are not the primary focus of this discussion.
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Baluncore said:There is possibly a single stage solution. A big shaft hydraulic pump driving a small shaft hydraulic motor where the pump has 150 times the displacement of the motor would achieve the required ratio.