Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D23/00—Control of temperature
G05D23/01—Control of temperature without auxiliary power
G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
G05D23/1306—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids
G05D23/1313—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids without temperature sensing element