F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
F23D 14/46 (2006.01) F23D 23/00 (2006.01)
Patent
CA 2136031
- 16 - ABSTRACT GAS FLOW CONTROL VALVE A gas flow control valve (10) is provided for controlling the flow of gas from a gas inlet (24) to first and second gas outlets (26 and 28) leading to first and second burners respectively of the multi-burner. The valve (10) includes a valve plug (30) rotatable in a bore (22) in a valve body (20) provided with the gas inlet and gas outlets. The plug (30) has an axial gas chamber (34), three circumferentially spaced openings (41, 42, 43) in its side wall and a further opening (47) in its lower end which provides communication between the gas chamber (34) and a bypass passage (25) leading to the first opening (26) via a restriction (52). The plug (30) is rotatable between an "off" position (Fig. 13) in which the wall of the plug closes the gas inlet (24), a first "simmer" position (Fig. 14) in which the plug (30) allows a restricted flow of gas to flow via the bypass passage (25) and restriction (52) to the first gas outlet (26), a first "on" position (Fig. 15) which allows a greater flow of gas to the first gas outlet (26), a second "simmer" position (Fig. 16) in which a restricted flow of gas flows through to both the first and second outlets (26 and 28) and asecond "on" position (Fig. 17) in which a greater flow of gas flows through to both of the first and second gas outlets (26 and 28).
Beckley Forge Pty Ltd
Borden Ladner Gervais Llp
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