Spacer-expander for a piston oil control ring

Details Spacer-expander for a piston oil control ring Spacer-expander for a piston oil control ring

F - Mech Eng,Light,Heat,Weapons

16

J

277/33

F16J 9/20 (2006.01) F16J 9/06 (2006.01)

Patent

CA 1068741

Abstract In a spacer-expander for a piston oil control ring of the type which includes a circumferential series of alternating inner and outer crowns successively con- nected by radially diverging spring legs and a support pad extending radially outwardly from each inner crown and connected thereto by a pad leg, the improvement wherein each pad leg comprises an arcuate reverse bend extending radially inwardly and then radially outwardly from an inner crown to a corresponding support pad. In a modification, each pad extends radially outwardly at an angle of more than ninety but equal to or less than ninety-five degrees with respect to the corresponding inner crown in the free-state of the expander. -i-

283104

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