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发明公开
CN102900643A 液压控制回路 无效 - 撤回

液压控制回路
摘要：
本发明涉及一种液压控制回路，其包括：可变排量的泵（1），增压泵（2），泵控制器（5），所述泵控制器（5）控制所述可变排量的泵（1）的排量，所述可变排量的泵（1）经由压力控制装置(11,12,21,25)通过所述增压泵（2）供应，所述泵控制器（5）包括双作用缸体（5），所述双作用缸体（5）包含第一腔室（51）和第二腔室（52），其中所述第一腔室(51)经由包含减压装置(11,12,13)的第一设定管线连接至所述增压泵(2)，所述第二腔室(52)经由包含比例式减压器(21)的第二设定管线连接至所述增压泵（2），从而通过对所述比例式减压器（21）进行控制来控制所述可变排量的泵（1）的排量。
摘要（英）：

The invention relates to a hydraulic control circuit comprising a variable-displacement pump (1), a booster pump (2), and a pump controller (5), wherein the pump controller (5) is used for controlling displacement of the variable-displacement pump (1), and the variable-displacement pump (1) is supplied by a fuel pump (2) through rressure control devices (11,12,21,25). The pump controller (5) comprises double-acting cylinders (5) comprising a first chamber (51) and a second chamber (52), wherein the first chamber (51) is connected to the booster pump (2) through a first calibration line containing a pressure reducer (11, 12, 13), and the second chamber (52) is connected to the booster pump (2) through a second calibration line containing a proportional pressure reducer (21), thereby controlling the displacement of the variable-displacement pump (1) through the proportional pressure reducer (21).

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