FIELD: hydraulics.
SUBSTANCE: in accordance with the present invention, a hydraulic system and an engineering machine are proposed, wherein the hydraulic system comprises: hydraulic system oil tank; pump station connected to hydraulic system oil tank; first multi-link multi-way valve connected to the pump station; second multi-link multi-way valve connected to the pump station; first reversible hydraulic distribution valve, wherein, when the first reversible hydraulic control valve is in the first position, the first multi-link multi-way valve is connected to the pump station, and when the first reversible hydraulic control valve is in the second position, the first multi-link multi-way valve is connected to the hydraulic system oil tank; a second reversible hydraulic control valve connected to the second multi-link multi-way valve; third reversible hydraulic control valve connected to the second multi-link multi-way valve; a first drive element connected to a second reversible hydraulic control valve and connected to a third reversible hydraulic control valve, wherein, when the second reversible hydraulic control valve is in the first position, and the third reversible hydraulic control valve is in the first position, the first drive element is in the working state; and a second drive element connected to the second reversible hydraulic distribution valve and connected to the third reversible hydraulic distribution valve, wherein when the second reversible hydraulic distribution valve is in the second position and when the third reversible hydraulic distribution valve is in the second position, the second drive element is in working condition.
EFFECT: hydraulic system and engineering machine are disclosed.
10 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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