SU carburettor

Original design incorporating a leather bellows which was replaced by a piston. This image was published 1908 and 1909
A pair of SU carburettors from an MGB

The SU carburettor was a constant-depression carburettor made by a British manufacturer of that name or its licensees in various designs spanning most of the twentieth century.

The S.U. Carburetter Company Limited also manufactured dual-choke updraft carburettors for aero-engines such as the Rolls-Royce Merlin and Rolls-Royce Griffon.[1]

  1. ^ The Two Rs Flight magazine, p 577, 7 May 1954