Patent ID: 9657853
Date: 2017-05-23
CPC Classifications: F16K,G05D

Claim:
1. Liquids mixing device ( 20 ) with electronic control of temperature and of outlet flowrate, that comprises a three-way valve first body ( 22 ) for intercepting fluids joined to a second body ( 21 ) that extends perpendicularly therefrom and contains internally control electronics ( 1 ) and the means for driving fluid comprised of: a valve first body ( 22 ) comprising two inlet holes ( 5 ) and an outlet conduit ( 9 ) for water mixed by the device ( 20 ); said outlet conduit ( 9 ) disposed along an axis AA of the valve whereas along a perpendicular axis BB a connecting conduit ( 23 ) connects the outlet conduit ( 9 ) and the inlet holes ( 5 ), the inlet holes ( 5 ) arranged perpendicularly to both outlet conduit ( 9 ) and connecting conduit ( 23 ), along an axis CC; in the connecting conduit ( 23 ) spheres ( 4 ) are arranged for intercepting and adjusting fluid flowrates; the spheres ( 4 ) being rotatable by respective pins ( 3 ) that are inserted into the valve first body ( 22 ) via corresponding holes ( 2 ) arranged along parallel axes DD that are coplanar to the axis AA of the outlet conduit; said pins ( 3 ) controlled by motors ( 14 ) that manage the corresponding rotation thereof according to axis DD according to the incoming signals from the control electronics ( 1 ); the control electronics ( 1 ) act on the motors ( 14 ), controlling the position thereof through a mechanical limit switch ( 12 ); characterised in that one portion ( 3 B) of the pin ( 3 ), from the side of the second body ( 21 ) that manages the electronics, has a square section for abutting against a limit switch ( 12 ) that is integral with a support ( 13 ) inside the second body ( 21 ); an end portion ( 3 D) of the pin ( 3 ) is suitable for being inserted into a seat ( 18 ) obtained on a corresponding sphere ( 4 ) so as to make the pin ( 3 ) and the sphere ( 4 ) integral and manage the adjustment of the flowrate and of the temperature.