Abstract: Device for the installation in an air-gas feeding duct, a standard thermocouple to provide both a cold safety function in case of extinction, and a hot safety function, without any additional device, in case of internal combustion. The downstream portion of the bulb side (4) of the thermocouple penetrates into the air-gas duct (2). Its probe tip (3) is immobilized against the inner surface of the diffusion chamber (5) at the center of the combustion chamber (6). Its connector (16) is secured to its exit point from the duct (2) at a marker-projection (17) by a lock (15). The life span of the thermocouple is considerably increased through permanent cooling by the fresh air-gas mixture of the elements proximate to combustion. In case of internal combustion, the inversion of temperature gradients of the cold and hot junctions of the thermocouple causes the generated electromotive force to fall rapidly. The device is designed for high temperature confinement burners.

Abstract: Infrared emitter with luminous radiation for a supply of gas at very low pressure and of primary atmospheric air via venturi, said supply comprising at least one gas injector, an injector holder, a safety valve, a gas supply connector, especially for raised heating appliances for directional heating towards the ground and/on the sides in the agricultural, industrial, craft and service sectors, characterised in that it comprises; a geometrical structure comprising at least one first (1), second (2), third (4) and fourth (5) concentric enclosure, a substantially horizontal upper plate (6) below which the said at least first (1), second (2), third (4), fourth (5) enclosures are fixed concentrically to said plate, fitting the one inside the other, a central opening (7) leading the air-gas flow perpendicularly to said plate, into the interior space created by the first enclosure (1).

Abstract: Infrared emitter with luminous radiation for a supply of gas at very low pressure and of primary atmospheric air via venturi, said supply comprising at least one gas injector, an injector holder, a safety valve, a gas supply connector, especially for raised heating appliances for directional heating towards the ground and/on the sides in the agricultural, industrial, craft and service sectors,

Abstract: Device for the installation in an air-gas feeding duct, a standard thermocouple to provide both a cold safety function in case of extinction, and a hot safety function, without any additional device, in case of internal combustion. The downstream portion of the bulb side (4) of the thermocouple penetrates into the air-gas duct (2). Its probe tip (3) is immobilized against the inner surface of the diffusion chamber (5) at the centre of the combustion chamber (6). Its connector (16) is secured to its exit point from the duct (2) at a marker-projection (17) by a lock (15). The life span of the thermocouple is considerably increased through permanent cooling by the fresh air-gas mixture of the elements proximate to combustion. In case of internal combustion, the inversion of temperature gradients of the cold and hot junctions of the thermocouple causes the generated electromotive force to fall rapidly. The device is designed for high temperature confinement burners.

Abstract: Infrared emitter with luminous radiation for a supply of gas at very low pressure and of primary atmospheric air via venturi, said supply comprising at least one gas injector, an injector holder, a safety valve, a gas supply connector, especially for raised heating appliances for directional heating towards the ground and/on the sides in the agricultural, industrial, craft and service sectors, characterized in that it comprises: a geometrical structure comprising at least one first (1), second (2), third (4) and fourth (5) concentric enclosure, a substantially horizontal upper plate (6) below which the said at least first (1), second (2), third (4), fourth (5) enclosures are fixed concentrically to said plate, fitting the one inside the other, a central opening (7) leading the air-gas flow perpendicularly to said plate, into the interior space created by the first enclosure (1).

Abstract: The invention relates to an injection device for burner heating apparatus provided with an air/gas mixture conduit including a Venturi element. This injection device comprises an injector holding tube (14), secured to a valve body (15) divided internally into two chambers by a membrane (23): an idle chamber (24) subjected to the pressure of the gas and communicating with the injector holding tube (14), and a compensation chamber (25) set to atmospheric pressure, enclosing a spring (27) able to urge the membrane (23) toward an idle mode state. This injection device comprises further a rod (31) secured to the membrane (23) and associated with idle mode stop means (34), said rod being extended by a tapered needle (33) arranged to traverse the injector (13) and determine with the latter a cross-section for the idle mode gas outlet, when the pressure of the gas is less than or equal to the idle mode pressure.

Abstract: The invention concerns an injection and regulation device for burners for heating appliances equipped with a duct (4) for an air/gas mixture and comprising a Venturi element (5). According to the invention, the means of injection include at least two injectors (13, 18) arranged with their injection nozzles staggered longitudinally and oriented so that the axis of their flux converges on the heart of the Venturi element (5). Furthermore, one of the other injectors (13), named first stage, is calibrated so that it gives an injection flow corresponding to a minimum idling rate, and is connected in such a way as to be constantly supplied with gas. In addition, the means of regulation (16) are adapted to modulate the supply to each of the other injectors (18), named second stage, so as to obtain the power required.

Abstract: The invention relates to a heating apparatus of the infrared type, particularly intended for the agricultural industry for the directionally downward heating of breeder buildings. This apparatus comprises primarily, arranged on the interior of a reflective dome (1) secured on a gas/air mixture feed conduit (3), a primary combustion chamber of a conical shape, comprising a base wall, secured to the end of the feed conduit (3), and a conical wall (13) of a perforate conductive heat resistant material, and a diffusion pre-chamber, arranged in the primary combustion chamber (8) and comprising a wall (16) of a heat resistant material, perforated with holes having a maximum opening dimension of less than 1.5 mm, said wall having a conical shape, pointed downwardly, with an apex angle of less than that of the conical wall (13) of the primary chamber.

Abstract: 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.