Functional Improvement on Valve Stem Seal 2002-01-0660
A new valve stem seal design has been developed to achieve superior control of the oil flow rate to valve guide. This design exhibits increased performance in the control of the oil flow rate under high pressures of the inlet or exhaust port and under high valve stem eccentricity. The recent demands of stable function, minimized oil consumption, and more efficient emission controls are achieved by this new design.
