Rotary manifold valve mechanism
AssigneeDavid P. McConnell
InventorsDavid P. McConnell, Louis E. Tully
Life of this patent
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Abstract
A rotary manifold valve mechanism for sequentially connecting a plurality of fluid flow ports with a fluid inlet and a fluid outlet, in which a stationary valving element has connections respectively with the fluid inlet and fluid outlet, and an operatively associated rotatable manifold is provided with the flow ports. In one form of the invention the valving element is stationary and positioned within the manifold element which is drivingly rotated by a connected shaft, while in a modified form the valving element is positioned outwardly of the manifold element which in this case comprises the shaft and wherein the flow ports are formed on the shaft periphery.
Claims9
A rotary valve mechanism for sequentially connecting a plurality of fluid flow ports with a fluid inlet and a fluid outlet, comprising:
- (a) a valving element having connections respectively with said fluid inlet and said fluid outlet;
- (b) a manifold element operably associated with said valving element and mounting said flow ports, said valving element and said manifold element being in concentric relatively rotatable relation;
- (c) driving means for rotating one of said elements with respect to the other of said elements;
- (d) both the valving element and the manifold element being of cylindrical configuration, the valving element being provided with a pair of radial, circumferentially extending arcuate recesses having their opposite adjacent ends in spaced relation;
- one of said recesses being in communication with said fluid inlet, and the other of said recesses being in communication with said fluid outlet;
- (e) circumferential sealing means extending between the valving element and the manifold element to sealingly isolate said recesses from one another, the sealing means including a continuous sealing ring disposed with a first section extending in parallel spaced relation along one side of one of the recesses, a second section extending in parallel spaced relation along the other side of the other of the recesses, and cross-over portions extending between the spaced adjacent ends of the recesses;
- the first and second sections of the continuous sealing ring being respectively arranged along planes which are spaced apart from each other and are axially inclined relative to an axis of relative rotation for the valving element and manifold element, the cross-over portions of the sealing ring being generally parallel to the axis of relative rotation for the valving element and manifold element;
- and a pair of seals respectively on opposite sides of said recesses and said continuous sealing ring, said seals being axially inclined relative to the longitudinal axis of the valving element.
Dependencies are inferred from the claim text.