Valve assemblies for heating devices

摘要

In certain embodiments, a valve assembly can comprise a housing, a valve body and a nozzle. The housing can define a first inlet and a second inlet. The valve body can be positioned within the housing and configured to rotate between a first position for a first fuel type and a second position for a second fuel type different from the first. A control knob is operatively coupled to the valve body and to an air shutter such that rotation of the control knob controls the state of the valve body and the position of the air shutter.

主权项

1. A dual fuel heating assembly comprising:
a valve assembly comprising a valve housing, a valve body, and a nozzle, the valve housing comprising:
a first fuel input for receiving fuel of either a first fuel type or a second fuel type; anda second fuel input for receiving fuel of either the first fuel type or the second fuel type;the valve body rotatably positioned with the housing and configured to direct fuel from the first fuel input through the valve body to the nozzle in a first manner when in a first state, and in a second manner different from the first manner when in a second state, the valve body configured to rotate between the first state and the second state; a burner; a burner delivery conduit comprising a tubular member having:
a first end, the nozzle being positioned within the tubular member at the first end to direct fuel into the burner delivery conduit, the first end having one or more holes positioned on a circumferential wall of the tubular member, the one or more holes configured to allow air to enter the burner delivery conduit and mix with the fuel; anda second end positioned to direct the mixed air and fuel to the burner for combustion of the mixed air and fuel at the burner; an air shutter comprising a cylindrical body positioned along a circumference of the tubular member at the first end, the air shutter rotatable with respect to the tubular member to cover at least a portion of one or more of the holes in the circumferential wall of the tubular member to thereby adjust air flow into the burner delivery conduit; and a control knob operatively coupled to the valve body and the air shutter such that rotation of the control knob controls the state of the valve body, the position of the air shutter and the air flow into the tubular member of the burner delivery conduit.