US Patent 10036286 Check valve plate positioner for camshaft phaser

A camshaft phaser, including: an axis of rotation; a stator including a radially outermost surface with a plurality of teeth; a locking plate including a first side facing in a first axial direction, a bore in the first side, and a through-bore; a check valve plate axially located between the locking plate and the stator and including a through-bore and a displaceable valve flap aligned, in the first axial direction, with the through-bore for the locking plate; and a bushing disposed in the bore in the first side and in the through-bore for the check valve plate. The bushing extends past the locking plate in the first axial direction.