Composite powdered metal combustion seal ring

Details Composite powdered metal combustion seal ring Composite powdered metal combustion seal ring

1992-12-18

1995-10-03

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277180, 277234, 277235R, F16J 1506

Patent

active

054545749

ABSTRACT:
An annular combustion seal ring for an engine gasket includes a central section having a generally circular cross-section and at least one tab section extending radially away from the central section. The ring is formed from a homogeneous composite powdered metal with material zones of varying densities. The composite powdered metal combustion seal ring has numerous advantages. Not only is it possible to design and manufacture a ring having a desired yield strength in both the vertical and hoop directions, but the stiffness along a particular axis may be selectively varied as a function of seal loading. Also, the varying density zones may provided by layers of material. In other aspects of the invention, the powdered metal may be primarily titanium with trace elements of the composite powdered metal providing lubrication to reduce the coefficient of friction at the ring's outer surface.

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Structure and Properties of Engineering Alloys, William F. Smith, Copyright 1981, pp. 451 and 454.

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