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Hydraulic machinery including sequential hydraulic cylinders and forestry machinery including such a hydraulic machinery
专利权人:
发明人:
申请号:
SE1750362
公开号:
SE1750362A1
申请日:
2017.03.27
申请国别(地区):
SE
年份:
2018
代理人:
摘要:
A hydraulic system comprising a first hydraulic line (3) which is connected to a hydraulic fluid source, and a second hydraulic line (4) which is connected to a hydraulic receiver (5), as well as a first consumer (Ca) and a second consumer (Cb) which are connected in parallel with each other between the first hydraulic line and the second hydraulic line for being activated in sequence, said consumers each comprising a first hydraulic port (1a, 1b), which is connected to the first hydraulic line, and a second hydraulic port (2a, 2b), which is connected to the second hydraulic line. The hydraulic system comprises a valve device (6) which is connected between the second consumer and the second hydraulic line, said valve device comprising a first valve port (7), which is connected to the second hydraulic port of the second consumer, and a second valve port (8), which is connected to the second hydraulic line, said valve device being adapted to assume a first, closed valve state when the hydraulic pressure (Pin) in the first hydraulic line falls below a predetermined pressure (P0) and a second, open valve state when the hydraulic pressure in the first hydraulic line exceeds said predetermined pressure, wherein in said closed valve state, the valve device is adapted to prevent hydraulic fluid to flow from the second consumer to the second hydraulic line, and wherein in said open valve state, the valve device is adapted to allow hydraulic fluid to flow from the second consumer to the second hydraulic line.Hydraulsystem innefattande en första hydraulledning (3), som är ansluten till en hydraulvätskekälla, och en andra hydraulledning (4), som är ansluten till en hydraulvätskemottagare (5), samt en första förbrukare (Ca) och en andra förbrukare (Cb), som är anslutna parallellt med varandra mellan den första hydraulledningen och den andra hydraulledningen för att aktiveras i sekvens, vilka förbrukare vardera innefattar en första hydraulport (1a, 1b), som är ansluten till den f
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