초록 ▼

A solenoid valve for a water purification system. The solenoid valve contains a fluid valve which can move between an opened position and a closed position, and a coil which moves the valve to the open position when a first voltage is supplied to the coil and maintains the valve in the open position

A solenoid valve for a water purification system. The solenoid valve contains a fluid valve which can move between an opened position and a closed position, and a coil which moves the valve to the open position when a first voltage is supplied to the coil and maintains the valve in the open position as a second voltage is supplied to the coil. The coil is coupled to a control circuit which initially supplies the first voltage to the coil when the valve is to be opened, and then reduces the first voltage to the second voltage after the valve is in the open position.

대표청구항 ▼

[ What is claimed is:] [1.] A water purification system coupled to a source of water, comprising:a filter unit;a pump connected to said filter unit;a solenoid valve comprising a fluid valve and a coil, connected to said pump and the source of water, said coil being adapted to move said fluid valve f

[ What is claimed is:] [1.] A water purification system coupled to a source of water, comprising:a filter unit;a pump connected to said filter unit;a solenoid valve comprising a fluid valve and a coil, connected to said pump and the source of water, said coil being adapted to move said fluid valve from a closed position to an open position when a first voltage is supplied to said coil, and maintains said fluid valve in said open position when a second voltage is supplied to said coil, wherein said first voltage is greater than said second voltage; and,a valve circuit that initially supplies said first voltage to said coil to move said fluid valve to said open position and then subsequently supplies said second voltage to said coil to maintain said fluid valve in said open position, said second voltage being supplied to said coil a predetermined time interval after application of said first voltage to said coil.