초록 ▼

A gas turbine fuel nozzle assembly having a replaceable nozzle cap. The nozzle assembly is comprised of a base portion and a nozzle cap. The nozzle base is secured to a combustion system and contains inlet ports for receiving either gas and oil fuel or gas fuel and steam, depending on the nozzle ass

A gas turbine fuel nozzle assembly having a replaceable nozzle cap. The nozzle assembly is comprised of a base portion and a nozzle cap. The nozzle base is secured to a combustion system and contains inlet ports for receiving either gas and oil fuel or gas fuel and steam, depending on the nozzle assembly configuration. The nozzle cap has outlet ports for injecting either gas and oil fuel or gas fuel and steam. The nozzle cap is connected to the nozzle base by inner and outer sleeves that form an annular conduit by which the gas flows from an inlet port in the base to an outlet port in the cap. In addition, the inner sleeve, which has an expansion joint formed therein, forms a central cavity that either holds an oil spray nozzle or forms a steam passage, depending on the nozzle assembly configuration. The nozzle cap is detachably coupled to the base by first and second threaded joints formed in the inner and outer sleeves, respectively. A locknut presses a front portion of the outer sleeve against a rear portion of the outer sleeve to form a first secure, but detachable, joint. A lock tube pulls a front portion of the inner sleeve against a rear portion of the inner sleeve to form a second secure, but detachable, joint. Anti-rotation pins and seals are disposed in both the first and second joints.

대표청구항 ▼

A gas turbine, comprising: a) a compressor for producing compressed air; b) a combustion system for heating said compressed air by fuel therein, thereby producing a heated compressed gas; c) a fuel nozzle assembly for introducing fuel into said combustion system, having: (i) a nozzle base having mea

A gas turbine, comprising: a) a compressor for producing compressed air; b) a combustion system for heating said compressed air by fuel therein, thereby producing a heated compressed gas; c) a fuel nozzle assembly for introducing fuel into said combustion system, having: (i) a nozzle base having means for securing said nozzle assembly to said combustion system, (ii) a one piece nozzle cap having a first fluid outlet port formed therein for injecting a fluid into said compressed air, said nozzle cap having integral inner and outer rearwardly extending sleeves, (iii) means, separate from said nozzle cap and said nozzle base, for coupling and uncoupling said nozzle base from said nozzle cap, said coupling means having first and second means for attaching and detaching said nozzle base from said inner and outer sleeves, respectively, said first attaching and detaching means having means for engaging said inner sleeve and said nozzle base, said second attaching and detaching means having means for engaging said outer sleeve and said nozzle base; and d) a turbine for expanding said heated compressed gas from said combustor assembly.