초록 ▼

The purging of residual fuel. In gas turbine combustor fuel injectors is disclosed in which the fuel injector includes a fuel element having a first and second fuel passage for discharging the fuel to the combustor of the gas turbine. Upon interruption of the fuel to the fuel element, high pressure

The purging of residual fuel. In gas turbine combustor fuel injectors is disclosed in which the fuel injector includes a fuel element having a first and second fuel passage for discharging the fuel to the combustor of the gas turbine. Upon interruption of the fuel to the fuel element, high pressure air is passed through an air passage to the first fuel passage to force the fuel in the reverse direction through the first fuel passage, through the second fuel passage, and discharge the residual fuel in each of the passages to the combustor through the second fuel passage.

대표청구항 ▼

A fuel injector for the combustor of a gas turbine, comprising: a fuel element having first and second fuel passages, said first and second fuel passage each having a discharge orifice adjacent an end of the element, and an inlet at a location spaced from said end for receiving fuel from a fuel supp

A fuel injector for the combustor of a gas turbine, comprising: a fuel element having first and second fuel passages, said first and second fuel passage each having a discharge orifice adjacent an end of the element, and an inlet at a location spaced from said end for receiving fuel from a fuel supply source; an air passage in said element communicating with said first fuel passage to communicate high pressure air to said first passage to purge the residual fuel from said first and second fuel passages through the discharge orifice of said second fuel passage when the supply of fuel to said first and second fuel passages is interrupted; said fuel element having a longitudinal axis; and said discharge orifices of said first and second fuel passages are spaced from said longitudinal axis by substantially the same distance for each.