GB372913A - Improved carburettor for use with aircraft engines - Google Patents

Abstract

372,913. Spray carburetters. CARBURATORI MEMINI SOC. ANON. ITALIANA, 16, Via Poliziano, Milan, Italy. April 14, 1931, No. 11088. Convention date, April 14, 1930. [Class i (iii).] In a carburetter for an aircraft engine, separate fuel-supply pipes are provided for the atomizing jet and for the float chamber, and automatic means cut the fuel supply off from the float chamber when the aircraft is inverted, and lead it directly to the atomizing jet. During normal flying, fuel from a tank 26 passes through pipes 30, 10 into the float chamber 5, which is open to the atmosphere at 15, and is fed to the fuel nozzle 4 through a passage 19. When the aircraft is inverted, the pipe 30 is uncovered and a weighted valve 16 prevents the fuel in the float chamber from escaping into the atmosphere. The fuel is then fed by passages 31, 25 past a weighted automatic valve 23 and a restricted orifice 21 to the passage 19 and nozzle 4. The Specification as open to inspection under Sect. 91 (3) (a) also describes a carburetter in which the fuel is fed through passages 9a, 35 to a chamber 37 in which is a valve 23a which, according to the position of the aircraft, closes either the entrance of fuel into a duct 10a leading to the float-chamber 5a, or the entrance of fuel into a duct 19a from which it falls directly into a duct 42 leading to the nozzle 4a. A needle valve may control the supply of fuel in the latter case, and air may be added to the fuel through the needle valve. This subject-matter does not appear in the Specification as accepted.