Fluid sprinkling – spraying – and diffusing – Fluid pressure responsive discharge modifier* or flow... – Fuel injector or burner
Reexamination Certificate
2011-03-22
2011-03-22
Gorman, Darren W (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Fluid pressure responsive discharge modifier* or flow...
Fuel injector or burner
C239S533200, C239S585500, C428S408000
Reexamination Certificate
active
07909270
ABSTRACT:
A valve assembly (80) of an injection valve (82) has a valve body (4) including a central longitudinal axis (L), the valve body (4) having a cavity (8) forming an inner surface (18) of the valve body (4), the cavity (8) having a fluid inlet portion (42), and a fluid outlet portion (44), a valve needle (10) axially movable in the cavity (8), the valve needle (10) preventing a fluid flow through the fluid outlet portion (44) in a closing position and releasing the fluid flow through the fluid outlet portion (44) in further positions, the valve needle (10) and/or the inner surface (18) of the valve body (4) having a surface layer (48) with a tungsten carbide layer (70) and a carbon layer (72).
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Bertini Paolo
Grandi Mauro
Continental Automotive GmbH
Gorman Darren W
King & Spalding L.L.P.
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