G
PHYSICS
G
PHYSICS
G05
CONTROLLING; REGULATING
G05
CONTROLLING; REGULATING
G05D
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
23/00
Control of temperature
23/00
Control of temperature
G05D23/01
without auxiliary power
G05D23/01
without auxiliary power
G05D23/13
by varying the mixing ratio of two fluids having different temperatures
G05D23/13
by varying the mixing ratio of two fluids having different temperatures
G05D23/1393
characterised by the use of electric means
G05D23/1393
characterised by the use of electric means