GB351939A - Improvements in spray carburettors for internal combustion engines - Google Patents

Abstract

351,939. Spray carburetters. SVENSKA ACKUMULATOR AKTIEBOLAGET JUNGNER, 17, Riddaregatan, Stockholm. March 31, 1930, No. 10180. Convention date, March 8. [Class 7 (iii).] In a spraying-device for fuel having the form of one or more narrow annular or semi-annular spaces at the throat of a carburetter, a larger fuel outlet is provided to facilitate starting. Fuel from a float chamber 1 is supplied through an orifice 19, a chamber 17 open to the atmosphere at a, an orifice 15, and a chamber 16 opening at an annular space 8 provided between two cones 5, into a recess 14. The area of the aperture formed should exceed 2 sq. mm. The quantity of fuel flowing through the orifice 15 is controlled by the orifice 19, and at higher speeds air is also drawn through the orifice 15. The main fuel outlet is fed to the annular ring 8 from the float chamber by a ring 11, channels 10, and a chamber 9. The cone 6 has a smaller internal diameter than the cone 5, and this produces an air whirl past the ring 8 which is in height between 0À1-0À5 mm. and of breadth 0À5-3 mm. A slow running passage 22 is provided. The lower part 2a of the induction pipe is made integral with the float casing, while the upper part 2b is made integral with the cover 4. In modifications, the annular rings 8, 25 may form part of the same outlet as shown in Fig. 4, or be provided separately. Specifications 240,811, [Class 7 (iii), Internalcombustion engines, Carburetting apparatus &c. for], 351,519, and 353,466 are referred to.