| 摘要 |
A hydraulic device for actuating the braking of work vehicles and the like, comprising a duct for connecting the delivery duct to the discharge duct or to an auxiliary duct, along which there are auxiliary pumping elements, which can be actuated in order to pump pressurized liquid into the feed duct; a one-way valve being provided which allow the liquid to flow along the connecting duct exclusively toward the delivery duct.
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