G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D23/00—Control of temperature
G05D23/185—Control of temperature with auxiliary non-electric power
G05D23/1852—Control of temperature with auxiliary non-electric power with sensing element expanding and contracting in response to change of temperature
G—PHYSICS
G05—CONTROLLING; REGULATING
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES