Rocker assemblies for control of engine valves and method of assembling such rocker assemblies

  • US 6,273,042 B1
  • Filed: 06/14/1999
  • Issued: 08/14/2001
  • Est. Priority Date: 06/14/1999
  • Status: Expired due to Term
First Claim
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1. In a rocker assembly for opening a valve in an engine,the rocker assembly having a rocker arm with a first end to be driven by a push rod and a second end, the rocker assembly further including a rocker ball secured to the second end of the rocker arm and a socket on the rocker ball, the rocker arm being pivotable about an axis between the first and second ends so that as the first end is pushed by the push rod the rocker arm pivots about the axis to move the second end to open the valve, the rocker ball having a curved outer surface with a center of curvature and a bottom, the center of curvature being between the bottom of the rocker ball and the second end of the rocker arm, the socket having an exterior bearing surface to act against a valve bearing surface for opening the valve, an exterior non-bearing surface, an interior surface and a top with a central opening to receive the rocker ball, the interior surface of the socket including an interior bearing surface for contacting a portion of the rocker ball curved outer surface so that pivoting motion of the rocker arm can be translated to linear movement of the socket against the valve bearing surface, the rocker assembly further including a retainer for securing the socket on the rocker ball, the improvement wherein the retainer extends to the level of the exterior bearing surface of the socket and includes a channel for the delivery of lubricant to the exterior bearing surface of the socket.

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