Patent GB-454377-A (GB)
Title: Improvements in burners for liquid fuels
IPC: F23D11/10
Filed: 1935-03-27
Abstract: 454,377. Liquid-fuel-burning apparatus. SOC. ANON. D'INTERRUPTEURS ET COMMUTATEURS AUTOMATIQUES, Avenue Mon Loisir, Lincoln, Lausanne, Switzerland. March 27, 1935, No. 9617. Convention date, Nov. 29, 1934. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 30, 1935.] [Class 75 (i)] In a liquid-fuel-burning apparatus, the liquid fuel and the atomizing agent are preheated by passage through separate channels in annular heating elements which are detachably secured side by side so as to surround the flame from the burner nozzle. The atomizing agent may consist of gasified liquid fuel. Fig. 2 shows a number of heating elements 128 and interposed apertured packing rings clamped by screws 140 between a casing 120 and an annular plate 141. The plate 141 is formed with lugs 124b which fit between lugs 124<a> on a plate 142 fixed to the furnace front plate 122 and are removably secured by tapered pins 123. Liquid fuel to be atomized is supplied by a pipe 143 to an aperture 125 in one element 128 passes sinuously through some or all of the channels 13... 20 to an aperture 125a connected to the burner. The number of channels through which the fuel passes is controlled by a multi-way cock 91 formed with radial ports which may be placed in communication with ducts z leading to the channels 14, 16, 18, 20. Liquid fuel to act as the atomizing agent is supplied through the aperture 126 and passes sinuously through channels 6... 1 to regulating valves 92 and then through channels 7..12 to the burner Glazed inspection apertures 127 are provided between the channels 1, 7. The burner is carried by the casing 120 and comprises a nozzle member 93a, Fig. I, surrounding a threaded tubular valve member 94 and a threaded needle valve 93. The liquid fuel is supplied through a chamber 102 to the space between the members 93a, 94 and the atomizing agent is supplied through a duct 101 to the space between the members 93, 94. The members 93, 94 can be adjusted by hand-wheels 105, 106 and are then fixed in the adjusted position, the member 39 by being clamped by a nut 90 to a fixed post 117<a> and the member 94 by means of a toothed ring 113 on a sleeve 112 attached to the handwheel 105 engaging a toothed segment 114 carried by an eccentrically mounted spindle 115 operable by a hand-lever 116. Alternatively the sleeve 112 may engage a toothed segment rotated by a thermostat subjected to the heat of combustion. A diffuser 119 slidable in the casing 120 is adjusted by means of a screw 118. The fuel is ignited by sparking plugs 120, 131 and burns with air admitted through a main inlet 120<d> and through regulable ports 121<a> in an ejector nozzle 131 projecting into the furnace. The Specification as open to inspection under Sect. 91 comprises also a burner apparatus in which the heating passages for the fuel and atomizing agent are formed in a single ring, and the valve members controlling the discharge of fuel and atomizing agent are formed with spiral or rectilinear grooves. An additional adjustable nozzle having lateral openings admitting air surrounds the fuel discharge nozzle. Means are described for spraying warm water into the flame and for moistening the air, when air is used as the atomizing agent. The pressure derived from the vaporized fuel may be used to feed fuel to the burner and the air supply may be obtained from a tank into which air is forced by a water injector. In another construction the fuel and atomizing agent circulate through tubes arranged in refractory elements. This subjectmatter does not appear in the Specification as accepted.