Fluid handling – Systems – Dividing into parallel flow paths with recombining
Reexamination Certificate
2007-04-03
2007-04-03
Keasel, Eric (Department: 3753)
Fluid handling
Systems
Dividing into parallel flow paths with recombining
C244S129400, C454S071000, C454S076000, C137S601140
Reexamination Certificate
active
10831673
ABSTRACT:
A valve is provided for controlling a flow of a fluid between a first environment and a second environment. The valve includes a frame adapted to fit within a perimeter of an aperture in a divider separating the first environment from the second environment. The valve additionally includes a first gate movable within the frame to control a flow of the fluid through the aperture between the first environment and the second environment. The first gate includes a substantially aerodynamically clean surface substantially free from protrusions disrupting the flow of the fluid over the first gate surface. Additionally, the first gate includes a trailing edge having a baffle adapted to cover an aft edge of the frame when the first gate is positioned to have a small opening angle. The baffle includes a plurality of 3-D notches in a front side of the baffle. The valve further includes a second gate movable within the frame to control a flow of the fluid through the aperture between the first environment and the second environment. The second gate also includes a substantially aerodynamically clean surface substantially free from protrusions disrupting the flow of the fluid over the second gate surface. Additionally, the second gate includes a trailing edge comprising a plurality of 3-D notches in a front side of the trailing edge.
REFERENCES:
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patent: 2002/0000307 (2002-01-01), Denk et al.
Agarwal Naval K.
Arnold Frank
Black Richard A.
Devitis Robert J.
Helms Frederick R.
Harness & Dickey & Pierce P.L.C.
Keasel Eric
Lee Cloud
The Boeing Company
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