RING SEAL

摘要

PCT No. PCT/GB95/01600 Sec. 371 Date Jan. 10, 1997 Sec. 102(e) Date Jan. 10, 1997 PCT Filed Jul. 6, 1995 PCT Pub. No. WO96/02776 PCT Pub. Date Feb. 1, 1996The sealing ring seals between relatively rotating and vibrating machine parts such as parts of an aircraft propeller, and has several sealing lands. The shape and configuration of the lands are selected so that natural vibration frequencies of the ring or lands are not vibration frequencies to which the ring is subject in use.