发明申请
- 专利标题: SCREED FOR ROAD FINISHING MACHINE
- 专利标题(中): 筛选道路修整机
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申请号: US12907341申请日: 2010-10-19
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公开(公告)号: US20110091278A1公开(公告)日: 2011-04-21
- 发明人: Roman Munz , Martin Buschmann , Achim Eul
- 申请人: Roman Munz , Martin Buschmann , Achim Eul
- 申请人地址: DE Ludwigshafen
- 专利权人: JOSEPH VOGELE AG
- 当前专利权人: JOSEPH VOGELE AG
- 当前专利权人地址: DE Ludwigshafen
- 优先权: EP09013219.2 20091020
- 主分类号: E01C19/22
- IPC分类号: E01C19/22
摘要:
In a screed with a basic screed and at least one extendable screed movable relative to the basic screed with a hydraulic cylinder and an electro-hydraulic control comprising a magnet-actuated directional control valve for at least controlling the direction of the hydraulic cylinder, the directional control valve for changing the rate of motion of the hydraulic cylinder is guided by an operator or automatically and is a proportional directional control valve (W) with proportional-electric direct actuation or proportional-electric-hydraulic pilot control. The proportional directional control valve for the hydraulic cylinder is connected on the actuation side with an electro-hydraulic control of a hydraulic system of the road finishing machine.
公开/授权文献
- US08353642B2 Screed for road finishing machine 公开/授权日:2013-01-15
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