| 摘要 |
1,161,159. Seals. J. M. VOITH G.m.b.H. 12 June, 1967 [21 June, 1966], No. 26978/67. Heading F2B. A clearance seal between rotary and stationary parts 3, 6 of a water turbine or pump comprises at least one annular chamber 8a disposed between parallel high and low pressure slots 7a, 7b and formed with curved walls for directing the flow of fluid from the high pressure slot across the entry of the low pressure slot. |
