Patent ID: 6536391
Filing Date: 2003-03-25
Classification: F01L

Abstract:
A hydraulic lash adjuster, comprising:a substantially cylindrical outer body having a side wall, an open end and a closed end, said side wall interconnecting said open end and said closed end, one of a flat and a notch defined by said side wall and extending from said open end a predetermined distance toward said closed end, a groove defined by said closed end, said groove in fluid communication with said one of said flat and said notch; a substantially cylindrical inner body having a side wall, an open end and a closed end, said side wall interconnecting said open end and said closed end, said open end of said inner body being disposed within said outer body to thereby dispose at least a portion of said inner body within said outer body; a substantially cylindrical plunger body having a plunger wall, an open plunger end and a plunger bottom, said plunger wall interconnecting said open plunger end and said plunger bottom, said plunger bottom defining a plunger orifice therethrough, said plunger bottom being disposed within said inner body to thereby dispose at least a portion of said plunger body within said inner body; a high pressure chamber defined between said plunger bottom, said closed end of said inner body, and said side wall of said inner body; and a low pressure chamber defined between said plunger bottom, said side wall of said plunger, and said closed end and said side wall of said outer body, said low pressure chamber in fluid communication with said slot and said one of said flat and said notch.