发明名称 |
ROTARY UNION UTILIZING VACUUM EXTRACTION |
摘要 |
A rotary union including a housing, a piston, and a shaft is provided. The piston has a first fluid passage therethrough and is configured to slide axially between a first position and a second position. The shaft has a second fluid passage therethrough and is configured to rotate. A first port is arranged in the housing and is in fluid communication with a cavity formed between the housing and the piston. The first port is configured to deliver a pressurized fluid into the cavity to actuate the piston from the first position to the second position. A chamber is formed in the housing and surrounds an interface between the first and second fluid passages. A second port arranged in the housing is in fluid communication with the chamber. The second port is configured to apply a vacuum to the chamber to evacuate fluid leaked into the chamber from the interface.
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申请公布号 |
US2013014827(A1) |
申请公布日期 |
2013.01.17 |
申请号 |
US201213545934 |
申请日期 |
2012.07.10 |
申请人 |
HAAS AUTOMATION, INC.;VELASQUEZ THOMAS R.;CAROTHERS CODY J.;HAAS GENE F. |
发明人 |
VELASQUEZ THOMAS R.;CAROTHERS CODY J.;HAAS GENE F. |
分类号 |
F16K17/00 |
主分类号 |
F16K17/00 |
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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