Title: Dynamic air bearing seal for engine crankshaft

Abstract: An air bearing is coaxially mounted around a rotatable shaft, such as an engine crankshaft, by means of a flexible ring of open cell foam. Air flows through the foam cell ring to the bearing face. In this manner, continuous streams of air will flow past the seal to prevent oil or contaminants from moving in a direction opposite to the air flow direction.

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Inventors: Bjerk, Roger O. (Edelstein, IL, US)

Application Number: 660535
Filing Date: 1976-02-23
Publication_date: 1977-03-22
Assignee: Caterpillar Tractor Co. (Peoria, IL)
Primary Class(es): 277/431
Other Classes:
US Patent Ref:

3815926	Jun, 1974	Vore	277/75.
3887199	Jun, 1975	Sundquist	277/74.

Other Refs:
Primary Examiner: Smith, Robert I.
Assistant Examiner:
Attorney: Phillips, Moore, Weissenberger, Lempio & Majestic