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3G071 Control of turbines
F01D17/00 -21/20@Z
F01D17/00-21/20 AA AA00
TYPES AND ARRANGEMENT OF TURBINES 		AA01 AA02 AA03 AA04 AA05 AA06 AA07 AA08 AA09 AA10
. Number of turbines . . Single turbines . Arrangement of shafts . . Series of shafts . Types . . Reheating types . . Air-bleed types . . Mixed-pressure types . . Back-pressure types . Combination with motors other than turbines
AB AB00
USE AND APPLICATIONS OF TURBINES 		AB01 AB02 AB03 AB04 AB05 AB06
. Use for power generation . . Generation of nuclear power . . Generation of geothermal power . . Generation of power from multiple sources . Use for boats . Use for pumps or for driving compressors
BA BA00
PURPOSE OR EFFECTS OF USE, AND APPLICATIONS OF TURBINES 		BA01 BA02 BA03 BA04 BA05 BA06 BA07 BA08 BA09 BA10
. Amount of control . . Speed control (i.e., control of the number of rotations) . . . Prevention of excessive speed (i.e., prevention of over-rotation) . . Output control (i.e., load control) . . . Output regulation (i.e., load regulation) . . . Running back . . Pressure control (i.e., operation with variable pressure) . . . Control of back pressure . . Control of flow rate . . Temperature control
BA11 BA12 BA13
. Improvement of response capability . . Hunting prevention . . Prevention of overshooting
BA21 BA22 BA23 BA24 BA25 BA26 BA27
. Improvement of maintenance and safety . . Safety or protection . . . Multiplexing . . . Warnings or alarms . . Inspection, testing, management, and diagnosis . . . Usable life . . Assembly and disassembly
BA31 BA32 BA33 BA34
. Improvement of automatic control devices . . Detection units . . Adjustment units . . Operating units
CA CA00
OPERATIONAL STATUS 		CA01 CA02 CA03 CA04 CA05 CA06 CA07 CA08 CA09
. Starting . Stopping . . Stopping by tripping a switch . Switching . . Injection on the entire circumference or partial injection . Manual operation . Operation with variable pressure . Operation during testing . Operation when abnormalities occur
DA DA00
OPERATING UNITS 		DA01 DA02 DA03 DA04 DA05 DA06 DA07 DA08 DA09 DA10
. Valves on the inlet side of the turbine . . Stop valves . . . Intermediate pressure . . . Low pressure . . Adjustment valves (i.e., speed-adjusting valves) . . . Intermediate pressure (i.e., intercept valves) . . . Low pressure . Valves on the outlet side of the turbine . . Intermediate pressure . . Low pressure
DA11 DA12 DA13 DA14 DA15 DA16
. Bypass valves . . Intermediate pressure . . Low pressure . Multiple valves that are arranged in parallel . Units with auxiliary valves . Vanes
EA EA00
ADJUSTMENT UNITS 		EA01 EA02 EA03 EA04 EA05 EA06 EA07
. Electric types . . Use of calculators . . Electric-hydraulic types that use oil . Hydraulic-pneumatic types that use oil . Comparison units . Use of functional generators . Inclusion of units that compensate the capabilities
FA FA00
DETECTION AND PARAMETERS 		FA01 FA02 FA03 FA04 FA05 FA06 FA07 FA08 FA09 FA10
. Output (i.e., load) . Speed (i.e., number of rotations) . Pressure . . Strength of the vacuum created . Flow rate . Temperature . Location . Torque . Vibration . Moisture
GA GA00
SIGNIFICANT CONTROL FACTORS 		GA01 GA02 GA03 GA04 GA05 GA06
. Stress . Usable life . Enthalpy . Rate of change . Steady-state speed variation . Abnormalities
HA HA00
TARGET VALUES AND SETTING VALUES 		HA01 HA02 HA03 HA04 HA05
. Speed . Output (i.e., load) . Pressure . Flow rate . Temperature
JA JA00
CONTROL METHODS AND CHARACTERISTICS OF CONTROL 		JA01 JA02 JA03 JA04 JA05 JA06
. Tracking . Programing . Optimum and optimization . Compensation . Operation . . Remote control
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