Patent ID: 6758175
Filing Date: 2004-07-06
Classification: F01L

Abstract:
A hydraulic manifold: assembly 24 for control of a variable valve actuation device for an engine valve wherein air is automatically purged from the assembly and is prevented from re-entering, comprising:a) a global oil supply gallery 38 in said manifold assembly and having a proximal end for receiving oil from said engine; b) a first pressure relief valve 26 disposed at a distal end of said global supply gallery for allowing purging of air from said gallery; c) at least one individual oil supply gallery 48 in said manifold assembly for supplying oil control from said global supply gallery to said variable valve actuation device; d) a control valve 30 having a valve seat 42 disposed between said global supply gallery and said individual supply gallery for regulating flow of control oil; and e) means 64, 66 for preventing draining of oil from said individual supply gallery.