公开(公告)号：US11313387B2

公开(公告)日：2022-04-26

申请号：US17267554

申请日：2019-07-30

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Peter Bruck ,  Christian Stauch

IPC: F15B1/027 ,  F15B1/033 ,  F15B21/14

Abstract: A system for charging and discharging at least one hydraulic accumulator (10) can be connected to a valve control device (12). The valve control device (12) has at least one logic valve (14). A shuttle valve (16) and a hydraulically operated switching valve (18) are also provided. The valves (14, 16, 18) are interconnected such that the hydraulically actuatable switching valve (18) compares the accumulator pressure (pA) to a minimum accumulator pressure (pA0) that can be adjusted via the control pressure setting of this switching valve (18).