Scott-Robinson automatic carburettor, 1911.
© Science Museum / Science & Society Picture Library
Sectioned. The carburettor is the component in an internal combustion engine which mixes air and fuel in correct proportions for combustion to occur. This is an example of the automatic carburettor patented by M Scott-Robinson in 1907. It is of the variable jet type, with a single variable air inlet, which maintains the quality of the mixture constant under all conditions. Low petrol consumption was a benefit of this type of carburettor.