Hydraulic cylinder system for rock crushers
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United States of America Patent
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Issued Date -
Dec 17, 2015
app pub date -
May 20, 2015
filing date -
Jun 11, 2014
priority date (Note) -
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Abstract
A rock crusher is provided that has a crusher cavity defined between a first part and a second part. A plurality of hydraulic cylinders are mounted between the first and second part, the hydraulic cylinders including a relief system. The relief system is included for reducing oil pressure within the hydraulic cylinders in the event uncrushables enter the crusher cavity, the relief system including a relief valve that is designed to open when hydraulic pressure in hydraulic cylinder reaches a predetermined level. This reduces the pressure in the hydraulic cylinder as oil pressure is dumped from the hydraulic cylinder via various oil passages.
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