Injection unit for a shaping machine
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United States of America Patent
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Jul 19, 2022
Grant Date -
N/A
app pub date -
Oct 14, 2021
filing date -
Oct 15, 2020
priority date (Note) -
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Abstract
An injection unit for a shaping machine includes an injection piston arranged displaceably in an injection cylinder and at least two drive units for displacement of the injection piston. Each of the at least two drive units is lubricated by an oil chamber which is oil-tightly sealed off in relation to the surroundings, and each oil chamber holds an oil volume, above which is arranged an air volume. The air volumes of the oil chambers are connected together in air-conducting relationship by a connecting conduit.
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