Sequencing valve and hydronic system

Details Sequencing valve and hydronic system Sequencing valve and hydronic system

2008-04-08

2008-04-08

Lee, Kevin (Department: 3753)

Fluid handling

Systems

Plural noncommunicating flow paths

C137S636100

Reexamination Certificate

active

07353843

ABSTRACT:
A sequencing valve and associated hydronic system are provided. The valve has first and second ports, which can be connected to a heat exchange device, and the valve is configured to selectively provide multiple fluids to the heat exchange device. For example, the valve can selectively connect hot and cold water supplies to the heat exchanger so that the heat exchanger can be used alternately to heat and cool air for a refrigeration system. The valve can include check valves that are adjusted by rotatable cams for controlling the flow of fluids into and out of the ports. Each cam can be mounted on a rotatable shaft so that the cams rotate to adjust the check valves between open and closed positions.

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“Cams and Cam Design,” Machinery's Handbook, ISBN-0-8311-2666-3, pp. 2163-2169, vol. 26, Industrial Press Inc., New York.

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