Patent ID: 6273045
Filing Date: 2001-08-14
Classification: F01L

Abstract:
A valve spring retainer (30) for operatively retaining a return spring (28) on a stem (20) of a poppet valve in an internal combustion engine, said retainer (30) comprising;a retainer flange (50) extending annularly about and radially from a hole (52) on a central axis (A) to an outer periphery for engaging the top of a spring (28),a ring (56) disposed below said flange (50) and extending about said axis (A) for surrounding a valve stem (20),an inner portion (58) extending cylindrically about said axis (A) and axially between said ring (56) and said flange (50), anda plurality of slots (61) extending radially from said hole (52) completely through said periphery and dividing said flange (50) and said inner portion (58) into independent sectors (S) interconnected only by said ring (56),said retainer (30) characterized by said slots (61) extending radially at a wide width (X) and each of said sectors (S) including a limit projection (63) disposed radially outwardly of said wide width (X) and at said periphery to define a narrow width y whereby said limit projections (63) limit relative annular rotation between said sectors (S).