Internal-combustion engines – Valve – Reciprocating valve
Patent
1996-03-29
1997-01-14
Solis, Erick R.
Internal-combustion engines
Valve
Reciprocating valve
1231889, 12318811, F01L 302
Patent
active
055929133
ABSTRACT:
An exhaust valve with a tapered stem portion has a head portion with a frustoconical seat portion and a trumpet like portion which extends from the seat portion to a tapered portion, a stem portion has a cylindrical portion which fits within a valve guide bore and a tapered portion, which adjoins the tapered portion of the head portion at a weld to form a continuous smooth taper, the weld is always disposed within the valve guide bore to prevent scuffing and seizure at inlet of the valve guide bore due to differential thermal expansion between the head and stem portions as they are formed of different alloys.
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Baehr Fred J.
Caterpillar Inc.
Solis Erick R.
LandOfFree
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