초록 ▼

An automatically operating valve for regulating water flow, especially a mixing valve for automatically mixing hot water and cold water to obtain a mixed water of a desired temperature is characterized by employing piezoelectric actuators for operating valve bodies thereof. Due to such a constructio

An automatically operating valve for regulating water flow, especially a mixing valve for automatically mixing hot water and cold water to obtain a mixed water of a desired temperature is characterized by employing piezoelectric actuators for operating valve bodies thereof. Due to such a construction, the valve can not only fully close or open but also carries out the fine flow amount control by regulating the opening rate or angle of the valve body. Especially in case the automatically operating valve is a mixing valve, the mixing ratio of hot water and cold water can be accurately regulated so that the mixed water of a desired temperature can be always automatically obtained.

대표청구항 ▼

A faucet comprising (a) a faucet body having a proximal end adapted to receive liquid supply means, a distal end having a tap opening for liquid discharge and a water outflow passage communicating between said proximal end and said distal end, (b) a power-operated mixing and flow regulating valve, s

A faucet comprising (a) a faucet body having a proximal end adapted to receive liquid supply means, a distal end having a tap opening for liquid discharge and a water outflow passage communicating between said proximal end and said distal end, (b) a power-operated mixing and flow regulating valve, said valve being mounted on the proximal end of said faucet body, said valve being provided with an inflow passage to which a cold water supply pipe and a hot wate supply pipe are connected, said inflow passage communicating between said supply pipes and said water outflow passage by way of a pair of respective valve openings, opening degree of said valve openings being regulated by the reciprocation of a pair of respective valve elements, (c) a pair of piezoelectric actuators, each independently and operably connected with a respective one of said valves, and (d) a control device comprising a printed circuit disposed in said faucet body, said control device controlling the operation of said valve so as to effect automatic temperature control and flow rate control of mixed cold and hot water passing through said water outflow passage.