I couldn't find one but did it ever exist?
Jag tror inte det (i alla fall inte utanför monteringslinjen) RR Merlin Motorer var Carb'ed . De Griffon-drivna planerna var också karbade men de använde en injektionsvätska som är lite annorlunda än en float-stil carb men inte full på bränsleinsprutning.
Ja, det skulle ha tillåtit långvariga G-manövrer som inte är möjliga i ett karburerat plan, eftersom flottören skulle falla och orsaka bränsle för att komma in i karbinen obegränsad.Would adding fuel injection have improved combat effectiveness or fuel efficiency?
Enligt wikipedia ...
However, the Merlin's float controlled carburettor meant that both Spitfires and Hurricanes were unable to pitch nose down into a steep dive.
Det här åtgärdades senare genom att installera en liten tallrik över flottören för att förhindra svält.
...original production variants of the Merlin used an SU manufactured carburettor in which the fuel flow was metered through a float. In most circumstances this proved to be sufficient but during the air battles over Dunkirk and during the Battle of Britain it was found that whenever the Merlin was subjected to negative "g" forces, such as a quick "bunt" into a dive, the engine would briefly lose power through petrol starvation...
...The remedy, invented by Beatrice "Tilly" Shilling, was to fit a metal diaphragm with a hole in it, across the float chambers. It partly cured the problem of fuel starvation in a dive. The device was commonly referred to as 'Miss Shilling's Orifice'....