Mechanical seal

Details Mechanical seal Mechanical seal

F - Mech Eng,Light,Heat,Weapons

04

D

277/20.5

F04D 29/10 (2006.01) F04D 29/12 (2006.01) F16J 15/34 (2006.01)

Patent

CA 1245685

IMPROVED MECHANICAL SEAL ABSTRACT A single or multiple stage mechanical seal assembly (10,100) in which one seal ring (20) is resilently coupled to a rotatable shaft and the other seal ring is resilently urged toward the first seal ring by axiaily- arranged identical springs (74) received in spring pockets in a spring retainer, some pockets opening at one radial surface of the retainer (78) and others opening at the other radial surface of the retainer. The outer surfaces of the seal rings are protected against deflection by being encircled by cylindrical members (42,42A,42B,42Cand one seal ring is resi- liently coupled to its encircling cylyndrical member. A balance sleeve means partly supports the axially movable seal ring and is capable of angular adjustment to compensate for shaft misalignment.

453448

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