DEVICE TO CONTROL POSITION OF METERING UNIT OF GAS-TURBINE PLANT CONTROL SYSTEM Russian patent published in 1998 - IPC

FIELD: mechanical engineering; gasturbine plants; supply of liquid or gaseous fuel in to combustion chamber. SUBSTANCE: device has second support unit 13 accommodating additionally made integral rod 14 and metering member 15 identical to main metering member 14. Metering member 15 is coupled with metering member 14 by means of rod 16 installed in inlet channel 2 communicating through metering member 15 with outlet channel 3. Rod 14 is connected with feedback unit 11 through fixing unit 12. Fixed sleeve 17 has two axial ports 18 and 19 for members 4 and 15, three outer seating belts 20, 21 and 22 and one inner seating belt 23. Two rows of radial holes 24 and 25 communicating with outlet channel 3 and inlet channel 2, respectively, are made between outer belts. EFFECT: improved accuracy of fuel metering, possibility of using step motor of lower power output. 9 cl, 1 dwg