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Application of Ceramics to the Sliding Seat of Valve Bridge
Technical Paper
978319
Sector:
Event:
JSAE Spring Conference
Language:
Japanese
Abstract
For use in the valve train, using an OHV (over head valve)
configuration, of a 4 valve diesel engine for trucks and buses; we
developed a valve bridge, a component of a valve train, with a
ceramic head that is made of silicon nitride (Si3N4) in contact
with a rocker arm in order to reduce cost and improve wear
resistance for further diesel engine emissions regulations.
In order to evaluate the effect of this valve bridge, RIG tests
and durability tests on actual engines were carried out.