CRANKCASE BREATHER HAVING A FITTED RETAINER FOR RETAINING A VALVED CUP ASSEMBLY

摘要

A crankcase breather assembly for an internal combustion engine. A breather opening is provided in the crankcase for communication of combustion gases out from the crankcase interior. A breather unit is disposed in the opening and includes a cup having a valve therein for venting gases from the crankcase interior upon the condition of positive crankcase pressure. The breather unit further includes an elastic retaining member which covers and retains the cup therewith. The retaining member includes an integral breather tube. The retaining member further includes an outer groove that frictionally receives a peripheral edge of the opening to sealingly retain the breather unit in the opening without the use of fasteners.