发明名称 |
FLUID POWERED DUAL-PISTON ACTUATOR WITH EFFICIENT FLUID PORTING AND METHOD OF IMPLEMENTATION |
摘要 |
In an actuator, a first piston is attached to a first toothed rack, and a second piston is attached to a second toothed rack. A rotary member is attached to one pinion mating with the first or second toothed racks. A first volume is disposed in the cavity on one side of the first piston. A second volume is disposed in the cavity on another side of the first piston. A third volume is disposed on a side of the second piston opposite the second volume. A first fluid port is in fluid communication with the first volume via a primary fluid passage. A second fluid port, which is external to the cavity, is in fluid communication with the second volume. A fluid passage in the housing, external to the cavity and separate from the primary fluid passage connects the first and third volumes independently of the primary fluid passage. |
申请公布号 |
EP2002082(A4) |
申请公布日期 |
2012.08.22 |
申请号 |
EP20070749471 |
申请日期 |
2007.01.31 |
申请人 |
METSO AUTOMATION USA, INC. |
发明人 |
BAYREUTHER, DAVID;ARMSTRONG, LEONARD |
分类号 |
F01B9/00 |
主分类号 |
F01B9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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