Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1993-04-30
1994-03-29
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277174, 494 38, 494 70, F16J 1516
Patent
active
052978044
ABSTRACT:
A sealing system for a circumferential gap between an inner component and a concentric outer component. The inner component moves in relation to the outer component essentially only linearly back and forth. The two components rotate together around a common axis. There is a groove around the inner component. A centrifugal seal is secured in the groove by axial resilience. An axial lip around one side of the seal rests against at least one of the groove's sides. There is at least one radial lip along the outer circumference of the seal. The centrifugal force, increasingly exerted on a hydraulic fluid as the rotation of the components accelerates, causes the seal to expand radially as well until the lip or lips along its outer circumference come into contact with the inner surface of the outer component, sealing off the gap. The axial lip and the radial lip define a diagonal plane at an angle of 15.degree. to 75.degree. to the axis of rotation.
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Heinz Hemfort, Separators (booklet), pp. 33 and 34, 1983.
Freitag Edgar
Siegrist Uwe
Cuchlinski Jr. William A.
DePumpo Daniel
Firma Carl Freudenberg
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