Valves and valve actuation – Mechanical movement actuator – Particularly packed or sealed
Reexamination Certificate
2005-04-05
2005-04-05
Jacyna, J. Casimer (Department: 3751)
Valves and valve actuation
Mechanical movement actuator
Particularly packed or sealed
C123S528000
Reexamination Certificate
active
06874754
ABSTRACT:
An exhaust gas recirculation valve having a reciprocating pintle shaft supported by a sleeve bushing and having a labyrinthine pathway between a valve operating chamber and a shaft/bushing interface to minimize intrusion of exhaust gases into the interface. The labyrinthine pathway is formed between fixed annular elements of the valve body and shaft bushing and a movable annular element of the valve head telescopically disposed between the fixed elements.
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Fujita Mahoro M.
Geib Todd P.
Gluchowski Paul L.
Kelly Jerry L.
Lockwood Mark S.
Delphi Technologies Inc.
Griffin Patrick M.
Jacyna J. Casimer
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