Silicon carbide resistance igniter

Details Silicon carbide resistance igniter Silicon carbide resistance igniter

F - Mech Eng,Light,Heat,Weapons

23

Q

31/116, 327/119

F23Q 7/10 (2006.01) F23Q 7/22 (2006.01)

Patent

CA 1064248

ABSTRACT OF THE DISCLOSURE A monolithic ceramic resistance igniter of simple configuration is composed essentially of polycrystalline silicon carbide adapted for use in gas and liquid fuel burning systems. As a result of the combination, controlled density and large cross-sectional area, the igniter possesses an unusually high degree of physical ruggedness.. The igniter will attain at temperature of about 1000°C in well under 20 seconds drawing a maximum of 6 amps at 132 volts, with a room temperature resistivity of 0.10 to 1.70 ohm centimeters and a resistivity at about 1000°C of from 0.06 to 0.26 ohm centimeter. The igniter also has a physical construction such that a high percentage of its hot surface area radiates directly to the environment.

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