From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Patent specification for improvements to carburettors for internal combustion engines.
| Identifier | ExFiles\Box 1\7\ B001_X15 20 46 50 59-page281 | |
| Date | 1st May 1916 | |
| Godward Carburetter No 2 102,043 PATENT SPECIFICATION Convention Date (New Zealand), Nov. 4, 1915. Application Date (in the United Kingdom), May 1, 1916. No. 6230/16. Complete Accepted, May 1, 1917. COMPLETE SPECIFICATION. Improvements in or relating to Carburetters for Internal Combustion Engines. I, ERNEST ROBERT GODWARD, Cycle Manufacturer, of 40, Dowling Street, Dunedin, formerly of Don Street, Invercargill, both in the Dominion of New Zealand, do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement:— This invention relates to carburetters of the kind employing absorbent surfaces to receive the atomised liquid fuel and gradually supply it to the air passing through the apparatus. The invention comprises the arrangement of an expansion chamber lined throughout with absorbent material and expanding towards the induction pipe from the inlet for the fuel mixture, and into which chamber all the mixture of air and fuel enters at one point. A gauze nozzle for fuel can be provided, and a coned helical spring adapted to admit air between its coils under suction by the engine. The absorbent material is preferably gauze, and an upwardly projecting air supply tube can be provided covered with absorbent material, and a bell also covered with absorbent material can be located over the tube and adapted to rest on the bottom of the chamber and to be elevated by the suction of the engine; fuel being fed to the tube through the gauze nozzle. An absorbent permeable screen can be located between the chamber and the induction pipe of the engine. Other features of the invention will be evident from the following description taken in conjunction with the accompanying drawings in which— Figure 1 is a vertical section through the apparatus showing the parts in the position assumed when the engine is stationary; and Figure 2 is a similar section showing the altered position of the parts when the engine is running. The apparatus mainly comprises an inner tube 1, a bell 2, and a chamber 3 arranged vertically at any convenient place between the petrol feed 4 and the induction pipe 5. The inner tube 1 and the chamber 3 are supported on a base member 6 having an inlet 7 for air, and an opening 8 to which an adjustable nozzle 9 is attached, whereby a jet of petrol may be introduced. The petrol feed 4 leads from a float chamber of a known type to supply by gravity fuel to a gauze roll 10 secured to the top of the adjustable nozzle 9 and extended upwards within the inner tube 1 to any convenient height. This gauze roll or nozzle is of a kind previously proposed for use in carburetters and its pur- [Price 6d.] | ||