SUCTION AIR DEVICE FOR TOILET DRAIN PORT Russian patent published in 2012 - IPC E03D11/02 

FIELD: personal use articles.

SUBSTANCE: air suction device for toilet drain port has an air suction means for sucking air from the toilet drain port. Suction means is connected to the rear along the side of the water trap of the toilet body. The suction means has an ejector. The ejector is used as a generator of negative pressure and has a suction tank. The suction tank is located between the ejector and the toilet drain port. The air suction device additionally has a control device designed to control the execution of two stages. During the first stage, the suction tank sucks air from the toilet drain port. During the second stage, the suction tank releases air into the toilet drain port. The control unit performs a suction stage after the start of the supply of wash water into the toilet bowl. The stage of air release is performed before the completion of supply of wash water into the toilet bowl.

EFFECT: possibility of effective and quiet flushing of a toilet is achieved.

4 cl, 4 dwg