Importance

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Abstract

A three ported momentary contact diverter that doubles as a mixer valve, having a housing with a central bore passing therethrough including an axially movable elongated stem slidably received therein,and closed at each end by electrical solenoid operators, allows a pressurized fluid flow from a first fluid supply port to a second fluid receiver port when neither of the solenoids is electrically energized, and reverses the fluid flow from the first fluid supply port to a third fluid receiver port when simultaneously both solenoid operators become electrically energized momentarily to permit pressurized pilot fluid from the supply port to entersolenoid cavity via internally piloted fluid passages inside said elongated stem initiating each with a separate pilot opening in an overlapping relationship at the opposite sides of a central stem piston, comprising valving means, so as to permit pressurization of a first stem end by said pilot fluid while a second stem end is de-pressurized, with resultant stem movement from the original first position with fluid communication between said first and second ports to a second position with fluid communication between said first and third ports when the valve is used as a reversing diverter, whereas when the valve is used as a mixer, the second and third ports are connected to two different fluid supply sources under pressure and the third port is connected to a receiver of mixed fluids received via single first port alternatingly, and the solenoid operators could be energized individually for the reversal of fluids to be delivered to the receiver port while solenoid cavities may be provided with additional individual exhaust ports, adaptable to be connected to the low pressure of the system, if desired.

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First Claim