FORKLIFT, HYDRAULIC CYLINDER ASSEMBLY AND HYDRAULIC DEVICE THEREOF

WIPO Patent Application WO/2015/078360

A1

A forklift, a hydraulic cylinder assembly (100) and a hydraulic device thereof are provided. The hydraulic cylinder assembly (100) includes a cylinder (1) having first, second oil inlets (151, 152) and first, second oil outlets (153, 154) therein; a cylinder liner (2) disposed within the cylinder (1) and being moveable between first and second positions, and defining a first oil port (21) and a second oil port (22) therein; a piston (31) disposed within the cylinder liner (2) and being moveable between a third position and a fourth position; a first oil chamber (41) and a second oil chamber (42) are defined by the cylinder (1), the cylinder liner (2) and the piston (31), the first oil chamber (41) is normally communicated with the first oil port (21), and the second oil chamber (42) is normally communicated with the second oil port (22).

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ZHOU LEI (CN)
GUO QIANG (CN)

PCT/CN2014/092201

June 04, 2015

November 25, 2014

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BYD CO LTD (CN)

F15B15/14

US20060169132A1	2006-08-03
US5577433A	1996-11-26
CN2270839Y	1997-12-17
CN202326505U	2012-07-11

TSINGYIHUA INTELLECTUAL PROPERTY LLC (Trade Building Zhaolanyuan,Tsinghua University, Qinghuayua, Haidian District Beijing 4, CN)

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