Two-part flap valve

Details Two-part flap valve Two-part flap valve

2007-01-09

2007-01-09

Bastianelli, John (Department: 3751)

Valves and valve actuation

With means to increase head and seat contact pressure

Rotary valve

C251S307000

Reexamination Certificate

active

10538757

ABSTRACT:
A valve having a housing with a valve seat for a two-piece flap which is rotatably mounted on a drive shaft. An annular piston seal and an adjacent cover disk are disposed between the first part and the second part of the two-piece flap so as to revolve there-around. The diameter of the cover disk is smaller than the diameter of the annular piston seal which is embodied as a metal ring that is provided with a gap. The invention also relates to the use of said valve as a gas recirculation valve.

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