| 摘要 |
A hydraulic system which includes an auxiliary reservoir having an elastic fluid impervious chamber and apparatus for sealing the elastic fluid impervious chamber with the interior thereof in fluid communication with the inside of an associated fluid reservoir. Apparatus is provided for preventing excessive positive or negative pressure from building in the reservoir. Some embodiments may include a desiccant to dry the air which is within the reservoir above the liquid hydraulic fluid. A moisture indicator may also be used to visually verify that a tight vapor barrier is maintained. The extended surface area of the auxiliary reservoir also acts as a means of rejecting excess heat generated by the operating hydraulic system.
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