MIXER FOR FEEDING WATER AT PREDETERMINED TEMPERATURE Russian patent published in 1994 - IPC

FIELD: temperature control. SUBSTANCE: mixer has housing 1, regulator 2 with cavity filled with a temperature-sensitive medium and defined by different-size bellows 3 and 4 and valves 5 and 6 for regulating the degree of opening ducts with hot and cold water, the regulator being disposed longitudinally within the housing. The adjacent ends of bellows are coupled with each other with the aid of rod 8. During automatic temperature control the valves under action of thermal expansion of temperature-sensitive medium move synchronously in the longitudinal direction relative to flange 7 fixed in housing 1 thus varying the degree of opening ducts for inlet of cold and hot water and maintaining the temperature of mixed water. The regulator sensitivity and accuracy are inversely proportional to the difference of effective cross-sections of bellows. EFFECT: simplified construction, enhanced accuracy. 2 cl, 1 dwg