F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/129, 62/40
F16K 11/02 (2006.01)
Patent
CA 1206393
ABSTRACT OF THE DISCLOSURE A four-way diverter valve has a cylindrical housing wall and two pair of in-line ports for connection to a heat exchanger condenser or the like. Disposed within the interior of the valve housing is a longitudinal hollow tubular fluid flow diverter element mounted for rotation on a transverse axis coinciding with the center axis of the cylindrical wall. The tubular diverter element is provided with an inner generally diametrical baffle which forms separate but parallel fluid flow passages therein. Diametrically opposed longitudinally extend- ing radial ribs are disposed on the outer wall of the tubular diverter element and directly in line with the edges of the inner baffle. The end closure plates for the valve are provided with a first stop device for engagement by the diverter element ribs for properly positioning the diverter element in a normal position parallel to the in-line ports. A second stop means is provided for rib engagement to properly position the diverter element in rotated position when the fluid flow downstream of the valve is to be reversed. Diagonally opposed ports in the valve housing are surrounded by concave seats which are inclined at an acute angle to the cylindrical housing wall and the axis of rotation of the tubular diverter element. The end edges of the diverter element wall and baffle ends are slanted trans- versely at substantially the same angle to provide an engageable planular interface, in section, between the parts. Each seat extends circumferentially toward the other adjacent port and is intersected by a central longitudinal plane containing the baffle of the tubular diverter element when the latter is in its normal position so that the seat terminates on the side of the diverter element baffle remote from the surrounded port when the diverter element is in normal position. An axle mounts the tubular diverter element for rotation about its axis. A device is provided to shift the axle axially when desired. Thus, the diverter element and its associated parts can be tightened onto the seats, but also when the diverter element is to be rotated from its normal to its second position, the end edges of the associated parts can be lifted from the circum- ferential tapered seats for free subsequent rotation. Resi- lient seals are provided in association with the longitudinal ribs and stops. The seal is maintained during shifting of the diverter element along its axis.
435291
Marks & Clerk
Water Services Of America Inc.
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