Patent Number: 6,612,277

Title: Valve train assembly

Abstract: A rocker arm assembly for a valve train includes a hydraulic lash adjuster for accommodating slack in the valve train. There is also a lost-motion connection preferably between the axle of a roller which is operated upon by a cam and the rocker arm itself. Excessive expansion of the lash adjuster will not prevent closing of the valve because the closing movement is accommodated by the lost-motion connection. A spring is provided to maintain the lost-motion connection despite the tendency of the hydraulic lash adjuster to expand. Greater tolerance in the cam base circle radius is allowed, permitting the use of net-shaped cams.

Inventors: Genise; David G. (Turin, IT)

Assignee: Eaton Corporation

International Classification: F01L 1/24 (20060101); F01L 1/18 (20060101); F01L 1/22 (20060101); F01L 1/20 (20060101); F01L 001/18 ()

Expiration Date: 09/02/2020