SWITCHING VALVE Russian patent published in 2019 - IPC F16K11/74 

FIELD: switching valves.

SUBSTANCE: invention relates to a switching valve, which enables to switch the communication state of a plurality of ports by rotating the rotary member as a result of the driving action of the drive unit. Structure of switching valve (10) includes rotor (16) installed with possibility of free rotation in housing (12), and cover (18) installed on housing (12) in position facing table (66) of rotor (16). Between the top surface of this table (66) and cover (18) there is gap (S) of specified value, and on this table (66) locking element (82), spring-loaded towards cover (18) is installed. At that, due to absence of rotor (16) sliding along lower surface of cover (18) during rotation and closing of outlet port (98) on cover (18), other than outlet port (98), through which liquid is released, as a result of locking element (82) landing on this outlet port there is prevention of liquid leakage from inlet port (96).

EFFECT: purpose of the invention is to create a switching valve, which ensures efficiency of sealing and possibility of achieving increase in service life, as well as reduction of production costs and prevention of contamination of liquid.

13 cl, 19 dwg