GB1029521A - Spray nozzles - Google Patents

Abstract

1,029,521. Liquid fuel atomizers. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan. 8, 1965 [Jan. 9, 1964], No. 997/64. Heading F4T. A spray nozzle for liquid fuel comprises a pair of tubular passages defining at their ends an opening 14 which is elongated transversely to the lengths of the passages. Fuel is supplied at pressure to both passages, or fuel to one passage and air to another, and the two fluids impinge on each other in the opening 14. The passages may be formed by a U-shaped length of small bore metal tubing 11 and the opening 14 is formed at the mid-point of the U and is rectangular or V-shaped. The limbs of the U are secured in a plug 12 secured in the end of a pipe 13 supplied with liquid fuel. The plug has a shroud surrounding the curved portion of the U. In another embodiment, Figs. 4, 5 (not shown), the U-tube is replaced by two J tubes with their ends facing each other to form an opening which is either V-shaped or parallel sided. A deflector may be disposed adjacent to the concave sides of the tubes. In another embodiment, Figs. 6, 7 (not shown), a rectangular slot is formed in a straight length of tubing having its ends extending through the walls of a V-shaped plug closing the end of a fuel pipe. In still another embodiment, Figs. 8, 9 (not shown), the tubing is formed by flattening the spherical end of a cylinder so as to bring two diametrically opposed areas of the sphere together.