发明名称 |
GUARNIZIONE PER ALBERI |
摘要 |
<p>Apparatus for effecting a seal between a rotary shaft and its enclosure includes a sealing element having an elastic lip portion coupled to the shaft for rotation therewith and a sealing portion associated with the enclosure, the elastic lip portion forming a contact seal with the sealing portion when the shaft is stationary or rotating slowly. The elastic lip portion tends to lift from the sealing portion to form a non-contact seal upon a predeterminable increase in the rate of shaft rotation. Compressed gas is introduced into a region between the rotary elastic lip portion and the sealing portion to form a gas cushion therebetween to facilitate lifting of the elastic lip portion.</p> |
申请公布号 |
IT1178781(B) |
申请公布日期 |
1987.09.16 |
申请号 |
IT19840024191 |
申请日期 |
1984.12.21 |
申请人 |
GMN GEORG MULLER NURNBERG GMBH |
发明人 |
WEHRFRITZ HEINZ;BRUNKE MICHAEL |
分类号 |
F16C33/76;F16J15/00;F16J15/40 |
主分类号 |
F16C33/76 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|