Forged valve stem packing set

Details Forged valve stem packing set Forged valve stem packing set

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 41/02 (2006.01) F16J 15/20 (2006.01)

Patent

CA 2391781

A three-ring packing set for a forged valve stem is disclosed which includes upper (20) and lower (40) adapter rings formed from fiber reinforced graphite tape and each having a first density and a first axial thickness, and an intermediate preform ring (30) formed from graphite tape and having a second density that is less than the density of the upper and lower adapter rings and a second axial thickness that is less than the axial thickness of each of the adapter rings.

L'ensemble de garniture d'étanchéité à trois anneaux destiné à une tige de soupape forgée comprend des anneaux d'adaptateur inférieur (20) et supérieur (40) constitués en ruban de graphite renforcé en fibres, chaque anneau possédant une première densité et une première épaisseur axiale, et un anneau préformé intermédiaire (30) constitué en ruban de graphite et possédant une seconde densité inférieure à celle des anneaux inférieur et supérieur et une seconde épaisseur axiale inférieure à celle de chacun des anneaux d'adaptateur.

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