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US 6,293,230 B1Granted
Water heaters with flame traps
AssigneeSRP 687 Pty. Ltd.
InventorsZoran Valcic, Geoffrey Mervyn Whitford, Brendan Vincent Bourke
Life of this patent
Estimating the term…
Abstract
A gas water heater including a water container adapted to be heated by a gas burner; and an enclosure surrounding the burner, the enclosure having at least one entryway adapted to allow air and fumes to enter the enclosure without igniting flammable gases or vapors outside of the enclosure.
Claims20
A water heater comprising:
- a water container;
- a combustion chamber adjacent the container, said combustion chamber having at least one flame trap to admit air and extraneous fumes into said combustion chamber;
- said flame trap having a plurality of ports, each port being sized and shaped to cause air and extraneous fumes to pass through said ports at a velocity higher than the flame velocity of said extraneous fumes to confine ignition and combustion of said extraneous fumes within said combustion chamber;
- and
- a burner associated with said combustion chamber and arranged to combust fuel to heat water in said container.
2 more elements
A water heater comprising:
- a water container;
- a combustion chamber adjacent the container;
- a burner associated with the combustion chamber and arranged to combust fuel to heat water in the container;
- and
- a flame trap having a plurality of ports associated with the combustion chamber adapted to admit air and extraneous fumes into the combustion chamber and prevent ignition of remaining extraneous fumes outside of the combustion chamber, said ports adapted to cause said extraneous fumes and air to pass through said flame trap at a velocity sufficiently high to prevent stagnation of said extraneous fumes adjacent said flame trap outside of said combustion chamber, thereby confining ignition and combustion of said extraneous fumes within said combustion chamber.
2 more elements
A water heater comprising:
- a water container;
- a combustion chamber adjacent the container;
- a burner associated with the combustion chamber and arranged to combust fuel to heat water in the container;
- and
- a flame trap associated with the combustion chamber adapted to admit air and extraneous fumes into the combustion chamber and prevent ignition of remaining extraneous fumes outside of the combustion chamber, said flame trap having ports adapted to cause said extraneous fumes and air to pass through said flame trap at a velocity sufficiently high to prevent said extraneous fumes from reaching their ignition temperature outside of said combustion chamber, thereby confining ignition and combustion of said extraneous fumes within said combustion chamber.
2 more elements
A water heater comprising:
- a water container;
- a combustion chamber adjacent the container, said combustion chamber having at least one flame trap having a heat dissipation region at its periphery to admit air and extraneous fumes into said combustion chamber;
- said flame trap having a plurality of ports, each port being sized and shaped to cause air and extraneous fumes to pass through said ports at a velocity higher than the flame velocity of said extraneous fumes to confine ignition and combustion of said extraneous fumes within said combustion chamber, wherein the heat dissipation region comprises a metal-to-metal overlap portion between a peripheral edge of a plate forming said flame trap and a peripheral edge of an opening in the combustion chamber;
- and
- a burner associated with said combustion chamber and arranged to combust fuel to heat water in said container.
2 more elements
Dependencies are inferred from the claim text.