with flow-back of fuel at the burner, e.g. using by-pass

Full Title

Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space > by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space > with provision for varying the rate at which the fuel is sprayed > with flow-back of fuel at the burner, e.g. using by-pass