Oil control ring spacer-expander with improved slip latch

Details Oil control ring spacer-expander with improved slip latch Oil control ring spacer-expander with improved slip latch

F - Mech Eng,Light,Heat,Weapons

16

J

277/33

F16J 9/06 (2006.01) F16J 9/14 (2006.01)

Patent

CA 1068740

Abstract In a parted corrugated spacer-expander for use in a piston oil control ring of the type which includes a circumferential series of alternating inner and outer crowns successively connected by radially diverging spring legs having oil drain openings formed therein, an improved slip latch comprising a curved rod having a radius of curvature equal to or less than the free- state radius of curvature of the expander. One end of the latch extends through at least one leg opening adja- cent one expander end and terminates in a stop having an axial dimension which prevents passage through the leg openings. The other latch end extends over an arc of at least seventy-five degrees through a plurality of leg openings in the opposite expander end and is free to slide through the leg openings. -i-

283103

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