Apparatus for automatic gas ignition control
OwnerTu Wu-Henginventor
Life of this patent
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Abstract
This invention relates to an apparatus for automatic gas ignition control for igniting an auxiliary fire nozzle and main fire nozzle in a water heater, to precisely, safely and automatically ignite the gas. The apparatus for automatic gas ignition control according to the present invention provides an alarm to give early warning if the unit is not being fed a sufficient amount of gas. Further, this invention provides a gas flow controller to control the flow rate of gas dependent upon the change of water level or pressure requirements. Also this invention provides an electric circuit for igniting the auxiliary fire and the main fire. If any component in the electric circuits is damaged, the circuit will cease to operate or function and no gas will flow. This provides an absolute protection avoiding accidents.
Claims8
An apparatus for automatic gas ignition control which comprises:
- a. a water level sensor, micro switch, and gas flow controller for regulating the gas flow in accordance with changes in water level above a predetermined water level, said micro switch changing states when the water falls below said predetermined level;
- b. an alarm mechanism including pressure measuring means, said mechanism indicating when the gas pressure upstream of said controller is below a predetermined level;
- c. automatic gas control apparatus for controlling an auxiliary fire and a main fire, connected to said gas flow controller;
- d. a high voltage electric ignition circuit for igniting said auxiliary fire;
- e. an electric ignition circuit for igniting said main fire;
- and
- wherein said automatic gas control apparatus for producing an auxiliary fire and a main fire comprises
- a. a gas entrance port and a gas exit port for gas flow;
- b. an electromagnetic coil to produce magnetic force;
- c. a steel bar with a rubber diaphragm fixed thereon to be moved by the attraction of magnetic force produced by said electromagnetic coil, said diaphragm selectively allowing communication between said entrance port and said exit port;
- and
- d. a tension spring to restore said steel bar back to its initial position blocking said communication when said magnetic coil ceases to function;
- to thereby automatically control the gas flow in accordance with an electric current in said coil.
Dependencies are inferred from the claim text.