TOWING WINCH AND FOREST MACHINE PROVIDED WITH SAID WINCH
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United States of America Patent
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Issued Date -
Sep 26, 2024
app pub date -
Jun 17, 2022
filing date -
Jun 18, 2021
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Abstract
A forest machine has a carriage driven by a thermal engine and a towing/holding winch carried by the carriage and having a towing drum of the cable and a rotation electric motor of the towing drum commanded and controlled by an electric drive and control circuit having an accumulator pack, a detection block for detecting the electric energy absorbed by the electric motor during one or more towing steps of the load hooked to the cable and the electric energy returned in one or more holding steps of the same load, a comparator block for calculating the difference between the absorbed electric energy and the returned electric energy and an electric energy generator driven directly or indirectly by the thermal engine for sending the calculated electric energy difference to the accumulator pack; the electric drive and control circuit further having a control assembly of the tension of the cable.
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