Quiet high flow control valve

Abstract

A dispensing valve for dispensing a liquid including a valve housing having a fluid inlet and a fluid outlet, an armature positioned in the housing, the armature being reciprocal between an open and closed position, a sealing disk fixedly secured to a sealing end of the armature for sealing engaging a valve seat positioned about the fluid outlet for providing selective fluid communication between the fluid inlet and the fluid outlet and a flow control device positioned in the fluid outlet for providing a substantially quiet and constant flow of liquid through the fluid outlet. The flow control device including a high pressure region and a low pressure region downstream of the high pressure region with the high pressure region of the flow control device including a flow control orifice having an inside diameter less than a diameter of the fluid outlet and the low pressure region of the flow control device intersects the high pressure region of the flow control device. Additionally, the low pressure region has a first dimension less than the inside diameter of the orifice and a second dimension greater than the inside diameter of the orifice, with the second dimension being transverse to the first dimension. The body of the aid flow control device includes a substantially cylindrical portion and a substantially conical portion with the conical portion being positioned downstream of the cylindrical portion which includes the high pressure region while the conical portion includes said low pressure region.

Dependencies are inferred from the claim text.