fuel injection device for a turbocharger annular combustion chamber, and turbocharger annular combustion chamber

摘要

fuel injection device for a turbocharger annular combustion chamber, and turbocharger annular combustion chamber. fuel injection device for a turbocharger annular combustion chamber, comprising a pilot circuit feeding an injector and a multipoint circuit feeding injection nozzles (80) formed on a front face (72) of an annular crown (74) mounted within an annular chamber (78), and thermally insulating means of said central face (72) comprising an annular cavity (70) formed around the injection holes between the front face (72) of the annular crown and a wall (76) of the annular chamber (78) and intended to be filled when operating in coking air or fuel.