Dual labyrinth fluid seal with fluid slinger

摘要

PCT No. PCT/US82/01729 Sec. 371 Date Dec. 10, 1982 Sec. 102(e) Date Dec. 10, 1982 PCT Filed Dec. 10, 1982 PCT Pub. No. WO84/02382 PCT Pub. Date Jun. 21, 1984.A fluid seal device (10) has a plurality of non-contacting fluid seals located at the operative interface (16) between a stationary member (18) and a rotatable member (20) for preventing the leakage of a fluid from a fluid chamber (14). The first of the non-contacting seals (24) is a labyrinth seal (32) located adjacent the fluid chamber (14). The second non-contacting seal (40) is a spiral groove (42) located adjacent and in serial relation to the labyrinth seal (32). A third non-contacting seal (60) is a fluid slinger (62) which is located between the fluid chamber (14) and the labyrinth seal (32) for directing fluid (12) away from the path of operative interface (16). The fluid seal device (10) eliminates friction and increases the life expectancy thereof when used at the operative interface (16) between a stationary member (18) and a rotatable member (20) such as a crankshaft and block of an engine.