发明名称 |
Linear actuator for rotating shaft assemblies |
摘要 |
A linear actuator for a rotating shaft assembly includes a cylinder and a piston arranged within a cavity defined by the cylinder. Faces of the piston delimit first and second chambers within the cavity. A rotatable shaft fixed to the piston defines a first main passage in fluid communication with the first chamber and a second main passage in fluid communication with the second chamber. A pressure delivery body rotatably fixed to the rotatable shaft defines a first delivery passage in fluid communication with the first main passage and a second delivery passage in fluid communication with the second main passage. A passage isolation system selectively isolates fluid communication between the first delivery passage and the first main passage and fluid communication between the second delivery passage and the second main passage. A pressure limiting system selectively blocks fluid communication through the first and second main passages.
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申请公布号 |
US7603943(B2) |
申请公布日期 |
2009.10.20 |
申请号 |
US20070706555 |
申请日期 |
2007.02.14 |
申请人 |
HAAS AUTOMATION, INC. |
发明人 |
HAAS GENE F.;RYAN JOHN W.;ROCKSVOLD NICHOLAS M.;TANDROW WILLIAM F. |
分类号 |
F01B31/00;B21B31/30 |
主分类号 |
F01B31/00 |
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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