초록 ▼

An ignition and fuel supply system for gas-fueled heat radiators of the type comprising an upstream fuel feed (6), a safety valve (20) in the vicinity of the radiator, a pilot device (27) mounted on the radiator to allow reignition and a feed conduit (4) for the gas; the system includes a bypass (15

An ignition and fuel supply system for gas-fueled heat radiators of the type comprising an upstream fuel feed (6), a safety valve (20) in the vicinity of the radiator, a pilot device (27) mounted on the radiator to allow reignition and a feed conduit (4) for the gas; the system includes a bypass (15) equipped with gas-expanding devices (14) providing a pressure less than the pressures in the heating areas, whereby the pilot flame device (27) may be fed from the same conduit (4) used for the heating areas; a selection valve (24) is arranged in the radiator injection conduit in order to be closed at the pressure of the pilot flame; an ignition branch line (16) is arranged as a shunt of the upstream feed means (6) in order to supply gas at a pressure exceeding the pressures of the heating modes at the time an electrical igniter (19) is actuated to assure electrical ignition of the radiator.

대표청구항 ▼

A supply and ignition system for gas-fueled heater-radiators comprising upstream feed means for connection to a source of gas and for supplying the gas within a pressure range Pi corresponding to the heating mode requirements of said heat radiator, said upstream feed means comprising at least two pa

A supply and ignition system for gas-fueled heater-radiators comprising upstream feed means for connection to a source of gas and for supplying the gas within a pressure range Pi corresponding to the heating mode requirements of said heat radiator, said upstream feed means comprising at least two parallel branch lines each provided with a controlled valve and with a gas-expanding device, the expanding devices of different branch lines being at different discharge pressures within said range Pi, and said controlled valves being controlled by thermostatic means for assuring heating modes as a function of sensed temperature, said controlled valves comprising electric valves, and one of said electric valves being normally open in the absence of energization so as to enable the supply of gas in the event of power failure, a gas burning heat-radiator remote from said feed means, a safety valve in proximity to said heat-radiator and having a gas discharge conduit connected to said heat radiator by a gas injection conduit, temperature sensing means for controlling the opening of said safety valve, pilot means mounted on said heat radiator for ignition thereof and operatively connected to said temperature sensing means whereby said safety valve is maintained in the open position when said pilot means is lit, a pilot flame conduit in parallel with said gas injection conduit for connecting said safety valve with said pilot means, means for conveying gas from said feed means to said safety valve, upstream gas expanding means connected in parallel with said feed means for continuously supplying gas to said conveying means at a pressure pv less than the presures Pi of the heating modes, a gas pressure responsive selector valve in said gas injection conduit adapted to open at pressures equal to or greater than Pi and thereby permit gas flow to said heater-radiator and to close at the pressure pv and thereby only permit gas flow to said pilot flame conduit, said pilot flame conduit including gas expanding means for reducing the gas pressure at said pilot means to a substantially constant value.