发明名称 |
Apparatus for delivering sealant at a predetermined pressure to a stuffing box of a shaft |
摘要 |
A delivery unit (40) for automatically delivering a viscous sealant at a predetermined pressure to a stuffing box (70) of a shaft (20) is disclosed. The delivery unit (40), such as a pressure booster incrementally displaceable piston, is controlled to deliver the sealant at a predetermined pressure on demand when the pressure of the sealant within said stuffing box is less than the predetermined delivery pressure being sufficient to promote adhesion of the sealant onto a shaft segment and to thereby prevent or retard the egress of working fluid from a corresponding working chamber (17) of a machine adapte to perform work by the shaft. A system for reducing the pressure of sealant within a stuffing box by use of the delivery unit and of an impeller-based dynamic seal is also disclosed. |
申请公布号 |
US8215643(B2) |
申请公布日期 |
2012.07.10 |
申请号 |
US20070224574 |
申请日期 |
2007.02.27 |
申请人 |
COHEN-ZADA VAITZMAN;TAMAR (R.C.) TECHNOLOGIES DEVELOPMENT LTD. |
发明人 |
COHEN-ZADA VAITZMAN |
分类号 |
B67D99/00;F16J15/40;B67D7/08;B67D7/22 |
主分类号 |
B67D99/00 |
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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