THE problem of tuning and adjusting carburettors can well be remembered as a legacy from the earliest internal combustion engines and one which has hardly become simplified with the rapid development and improvement that aeroengines have undergone in recent years. Although, today, it is necessary to make but few individual adjustments in carburettors to suit the characteristics of particular engines, it is still essential in many instances to check every detail of carburettor functioning during engine bench tests. This creates difficulties, particularly when it is required to replace a carburettor on an otherwise serviceable engine. To subject the engine to complicated tests is obviously undesirable if satisfactory alternative means are available for checking the functioning of the carburettor as an interchangeable unit.
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: Oct 1, 1938