Piezoelectric hydraulic linear motor
A linear motor and hydraulic technology, applied in piezoelectric devices/electrostrictive devices, liquid varactor machines, fluid pressure actuation devices, etc. problems, to achieve the effect of novel structure, large driving force and movement stroke, and good sealing performance
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[0017] The inlet of the piezoelectric pump is connected to the accumulator through a pipeline, and the accumulator is also connected to a reversing valve through a pipeline, and the reversing valve is connected to the outlet of the piezoelectric pump through a pipeline, and the reversing valve is also connected through a pipeline The road is connected with the cavity of the hydraulic cylinder; the reversing valve adopts a 3-position 4-way valve.
[0018] Such as figure 1 As shown, the piezoelectric pump 1, the reversing valve 2, the hydraulic cylinder 3 and the accumulator 4 are connected to form a closed system through pipelines; the accumulator is connected to the inlet of the piezoelectric pump, and the reversing valve It is a 3-position 4-way valve; when the piezoelectric pump 1 is started, the movement state of the hydraulic cylinder piston 301 is changed by adjusting the position of the reversing valve 3: when the reversing valve 2 is cut off (at position 202), The flui...
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