FUEL-INJECTION NOZZLE WITH DETACHABLE SENSOR Russian patent published in 2004 - IPC

FIELD: fuel-injection nozzles for turbine plant. SUBSTANCE: fuel-injection nozzle has easy detachable sensor for monitoring temperature or another conditions into nozzle. Nozzle has guiding pipeline, which is inserted into nozzle. Pipeline has orifice accessible from outside. Measuring probe is introduced into pipeline orifice. At least one sensing member, for instance, junction of thermocouple is arranged on measuring probe for detection of temperature or other parameters into nozzle. According to one preferred embodiment guiding pipeline has non-rectangular profile. Measuring probe stem is flexible enough for following pipeline outline and rigid enough for overcoming resistance of pipeline during probe insertion. Measuring probe flexibility may change along its length for easy measuring probe introduction into pipeline. Measuring probe length exceeds pipeline length so that when measuring probe is accurately inserted into sensing pipeline member arranged at probe narrow end contacts with closed measuring probe end for increasing of probe sensitivity to changing conditions inside nozzle. Measuring probe stem may be bent and pressed against inner pipeline wall for excessive pipeline vibration prevention. EFFECT: increased efficiency. 13 cl, 6 dwg _