ARRANGEMENT AND METHOD FOR HEATING HYDRAULIC IMPACT DEVICE
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United States of America Patent
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Issued Date -
Aug 15, 2024
app pub date -
Feb 8, 2024
filing date -
Feb 10, 2023
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Abstract
An arrangement and method for heating an impact device of a rock treating machine (Rtm) in low-temperature operating conditions is provided. The arrangement includes a warm-up mode (WM) for feeding pre-heated hydraulic fluid through a feed channel to a hydraulic circuit of the impact device. One or more hydraulic accumulators are provided in the hydraulic circuit. The feed channel is provided with a control element for limiting the feeding of the pre-heated hydraulic fluid during the warm-up mode. The control element limits the feeding of the pre-heated hydraulic fluid in the feed channel so that separating elements of the pressure accumulators do not move.
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