초록 ▼

A burner system employs a fuel control which supplies fuel flow to a pilot burner and a main burner and which energizes an electric igniter adjacent the pilot burner for igniting the pilot burner. A valve between the control and the main burner is opened when the pilot burner flame is sensed to allo

A burner system employs a fuel control which supplies fuel flow to a pilot burner and a main burner and which energizes an electric igniter adjacent the pilot burner for igniting the pilot burner. A valve between the control and the main burner is opened when the pilot burner flame is sensed to allow passage of fuel to the main burner which is ignited by the pilot burner. The pilot burner flame is sensed by a bulb adjacent the pilot burner containing a charge of gas and an adsorbent carbonaceous material which is a decomposed compound of carbon and a non-carbon component wherein the non-carbon component has been removed leaving a porous structure with cavities of sufficient size to receive and adsorb the gas.

대표청구항 ▼

A burner system comprising a main burner; a pilot burner disposed in igniting proximity to the main burner; first and second conduits to the respective main and pilot burners; an electric igniter disposed in igniting proximity to the pilot burner; means for controlling fuel flow to both the first an

A burner system comprising a main burner; a pilot burner disposed in igniting proximity to the main burner; first and second conduits to the respective main and pilot burners; an electric igniter disposed in igniting proximity to the pilot burner; means for controlling fuel flow to both the first and second conduits; said controlling means including switch means for energizing the electric igniter when fuel is supplied to the first and second conduits; valve means interposed in the first conduit between the controlling means and the main burner; flame sensing means for opening the valve means in the presence of a flame from the pilot burner and for closing the valve means in the absence of a flame from the pilot burner; said flame sensing means including a bulb adjacent the pilot burner, an adsorbent carbonaceous material disposed in the bulb and a charge of gas in the bulb; and said adsorbent carbonaceous material being formed from a synthetic polymer selected from the group consisting of polyvinylidene chloride and polyvinylidene fluoride by removing the hydrogen and halogen components leaving a porous structure with cavities of sufficient size to receive and adsorb the gas.