Twist proof seal ring arrangement for shafts

Details Twist proof seal ring arrangement for shafts Twist proof seal ring arrangement for shafts

1985-07-11

1988-03-08

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277104, 277166, 277203, F16J 1526

Patent

active

047295694

ABSTRACT:
Means for preventing relative twisting between a seal ring and the parts of structure accommodating it by providing that in connection with high pressure shaft seals, the axial thrust resulting from the action of the pressure of the seal ring on its low pressure side radial face is taken up by a number of projections, the cross section of the seal ring undergoing undulating deformation as seen in the circumferential direction owing to the axial flexure of individual parts of the seal ring; it is furthermore possible to have additional projections as means for preventing twisting. As a consequence of the undulation of the entire cross section of the seal ring there will also be the useful effect of undulation of the seal interface edge, constituted by parts of this cross section, on the high pressure side.

REFERENCES:
patent: 1307901 (1919-06-01), Farland et al.
patent: 1770509 (1930-07-01), Chambers
patent: 1811588 (1931-06-01), Moreau
patent: 4175475 (1979-11-01), Eckhardt
patent: 4336945 (1982-06-01), Christiansen et al.
"The Heat Load of an Oil Seal", R. V. Brink, BHRA Fluid Engineering, Cranfield, Bedford, Engld., pp. C1-1 thru C1-10, 1973.
"Dichtungselemente", Prof. Dipl.In.A.Leyer, pp. 939-944, Maschinenkonstrukslehre, Nr. 24/1965.
"Slanted O-Rings Extend Shaft Life", Leonard J. Martini, Mechanical Engineer Naval Ocean Systems Center, San Diego, Calif., pp. 77 and 78, no date.

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