发明申请
- 专利标题: Hydraulic Control Valve, Dual-Cylinder Extension System and Aerial Work Engineering Machine
- 专利标题(中): 液压控制阀,双缸延伸系统和高空作业工程机械
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申请号: US14346212申请日: 2012-02-16
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公开(公告)号: US20150014093A1公开(公告)日: 2015-01-15
- 发明人: Xianxin Shi , Xiaodong Xu , Demei Kong , Liangwei Lu
- 申请人: Xianxin Shi , Xiaodong Xu , Demei Kong , Liangwei Lu
- 申请人地址: CN Jiangsu
- 专利权人: Xuzhou Heavy Machinery Co., Ltd.
- 当前专利权人: Xuzhou Heavy Machinery Co., Ltd.
- 当前专利权人地址: CN Jiangsu
- 优先权: CN201110286496.X 20110923
- 国际申请: PCT/CN2012/071203 WO 20120216
- 主分类号: F15B11/22
- IPC分类号: F15B11/22 ; B66F11/04 ; F15B21/00
摘要:
A hydraulic control valve, a dual-cylinder extension system and an aerial work engineering machine. The control valve comprises a flow distributing and collecting valve, and control valve body is provided with a first oil opening, a second oil opening and a third oil opening. A first oil opening, a second oil opening and a third oil opening of said flow distributing and collecting valve are respectively communicated with the first oil opening, the second oil opening and the third oil opening of the valve body. The control valve has two working states, wherein, in the first working state, the oil path between the second oil opening and the third oil opening of the valve body is blocked; and in the second working state, the oil path between the second oil opening and the third oil opening of the valve body is opened.