Labyrinth seal

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member

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Details

277 55, 4151745, F16J 1532

Patent

active

052442160

ABSTRACT:
An improved design for a labyrinth seal is disclosed. The present invention relates to a radially stepped labyrinth seal whereby the geometry of the sealing surfaces is to optimize flow deflection, thereby producing maximum turbulent shearing action. This is generally accomplished by the formation of sealing surfaces where the shape of the seal components is established as a function of the minimum clearance between the relatively movable members.

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patent: 4335886 (1982-06-01), Frey et al.
patent: 4500098 (1985-02-01), Wilcox et al.
Stocker, H. L., "Advanced Labyrinth Seal Design Performance for High Pressure Ratio Gas Turbines," ASME Publication, Aug. 4, 1975.
Tipton, D. L., Scott, T. E., and Vogel, R. E., Labyrinth Seal Analysis, "Analytical and Experimental Development of a Design Model for Labyrinth Seals," AFWAL, Tr. 85-2103, vol. III, pp. 14-20, Jan. 1986.

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