Patent ID: 8151752
Filing Date: 2012-04-10
Classification: F01L,Y10T

Abstract:
1. A deactivating hydraulic lash adjuster in a valvetrain in an internal combustion engine wherein said deactivating hydraulic lash adjuster is disposed in a bore in said engine, said deactivating hydraulic lash adjuster comprising a) a body having a first axial bore; b) a pin housing slidably disposed in said first axial bore having a fixed rotational orientation relative to said body and having a transverse bore through said pin housing; c) at least one lock pin slidably disposed in said transverse bore; and d) a first feature attached to said body for engaging a second feature formed in said engine for rotationally orienting said body in said engine and for preventing rotation of said body in said engine bore after installation of said deactivating hydraulic lash adjuster into said engine, wherein said second feature includes a protuberance otherwise unrelated to said deactivating hydraulic lash adjuster, and wherein said first feature comprises: e) a groove formed in said body of said deactivating hydraulic lash adjuster; f) at least one cutout formed in said body and extending into said groove; g) a clip disposed in said groove and having at least one tang extending through said at least one cutout beyond the outer surface of said body; and h) a non-rotation feature surrounding said body and extending away from said body for engaging said protuberance to prevent rotation of said body within said engine bore, said non-rotating feature having at least one tab extending inwardly into said at least one cutout.