F-Term-List

F03B15/00;15/02;15/04;15/06;15/08;15/10;15/12;15/14;15/16;15/18;15/20;15/22

AA00
FORMS OF WATERWHEELS

AA01

AA02

AA03

AA04

AA05

AA07

AA08

AA09

AA10

. Types of waterwheels

. . Water turbines

. . . Impulse turbines

. . . . Pelton wheels

. . . . Cross-flow waterwheels

. . . Reaction turbines

. . . . Francis turbines

. . . . Propeller turbines

. . . . . Kaplan turbines

AA12

AA13

. . Pump turbines

. . . Variable-speed pump turbines

AA21

AA22

AA23

AA24

AA25

AA26

AA27

AA30

. Multiple turbines

. . Multiple turbines that are installed in series

. . . Multi-step turbines

. . Turbines that are installed in parallel

. Arrangement of the main shaft

. . Vertical shafts

. . Horizontal shafts

. Others

BB00
PURPOSE OF CONTROL

BB01

BB02

BB03

BB04

BB06

BB07

BB09

BB10

. Control of operation

. . Starting

. . . Starting of the water turbine

. . . Starting of the water pump turbine

. . Stopping or braking

. . . Emergency stopping or braking

. . Phase modification or idling

. . Load cutoff

BB12

BB13

BB14

BB15

BB16

BB18

BB19

. . Switching of the operational mode

. . Adjustment of speed

. . Control of output

. . . Water-turbine output

. . . Output of the water pump turbine

. . Monitoring and observation

. . Adjustment of the water level of the reservoir

BB21

BB22

BB23

BB24

BB25

. Improvement of operation

. . Improvement of efficiency

. . Reduction of vibration or noise

. . Compensation for unstable ranges or modes of operation

. . Expansion of the operating range

BB31

BB32

BB33

BB34

BB36

BB37

BB38

BB39

BB40

. Avoidance of danger

. . Prevention of excessive speed

. . Prevention of abnormal pressure

. . . Prevention of water-hammering

. . Prevention of contact between the rotary parts and the stationary parts

. . Prevention of damage by locking

. . Prevention of abnormal temperature increases

. . Prevention of cavitation

. . Management of control mechanisms during malfunction

BB50

. Others

CC00
DETECTION UNITS

CC01

CC02

CC03

CC05

CC06

CC07

CC08

CC09

CC10

. Objects of detection

. . Flow volume

. . . Water-pumping volume

. . Pressure

. . . Drops in pressure

. . . Rises in pressure

. . Liquid level

. . . Position of the liquid surface in the draft tube

. . . Liquid level in the reservoir

CC12

CC13

CC15

CC16

CC17

CC18

CC19

CC20

. . Rotational speed

. . . Frequency

. . Output

. . . Output of the water turbine

. . . Output of the water pump turbine

. . Temperature

. . Degree of opening

. . . Degree of guide-vane opening

CC22

CC25

CC26

CC27

CC30

. . Malfunction of control instruments

. Detection means

. . Electrical means

. . Optical means, ultrasonic means, or electromagnetic means

. Others

CD00
PROCESSING OPERATING UNITS

CD01

CD02

CD03

CD04

CD06

. Processing means

. . Electrical means

. . . Calculation means

. . . Memory means

. . Fluid means

CD11

CD12

CD13

CD15

CD16

CD18

CD20

. Operation means

. . Fluid means

. . . Use of hydraulic-pressure circuits

. . Mechanical means

. . . Relay mechanisms

. . Electrical means

. Others

CE00
OBJECTS OF CONTROL

CE01

CE02

CE03

CE04

CE06

CE07

CE09

CE10

. Turbine members

. . Intake valves

. . Control valves

. . . Discharge valves

. . Speed-adjustment devices

. . . Electric speed-adjustment devices

. . Guide vanes

. . Moveable runner-vanes

CE12

CE13

CE14

CE15

. . Needle valves

. . Deflectors

. . Gas supply and discharge means

. . . Gas-discharge valves

CE21

CE22

CE23

CE24

CE26

CE27

CE28

CE30

. Control parameters

. . Flow volume

. . Liquid level

. . . Falling of the liquid surface level

. . Rotating speed

. . Opening

. . . Closing speed

. . Pressure

CE32

CE33

CE34

CE40

. . Output

. . . Output of the water turbine

. . . Output of the water pump turbine

. Others

FF00
CONTROL METHODS

FF01

FF02

FF03

FF04

FF10

. Follow-up control

. Program control

. Optimization control

. Compensation control

. Others

3H073	Control of water turbines
	F03B15/00 -15/22