SEALING Russian patent published in 2017 - IPC F16J15/16 

FIELD: machine engineering.

SUBSTANCE: sealing is made in the form of a multilayer cylinder, one end of which is fixed between the outer and inner rings. In each cylindrical layer along the generatrix there are grooves, flexible elastic sealing elements are formed between them. When assembling a multilayer cylinder, each successive layer overlaps the grooves of the previous one. Sealing is tightly seated on the shaft by the inner ring, and the outer diameter of the multilayer cylinder is in contact with the cylindrical surface of body. The sealing rotates together with the shaft, under the action of centrifugal forces, the flexible elastic sealing elements are pressed against the cylindrical surface of body, thus ensuring the tightness of the gap between the body and the shaft.

EFFECT: sealing with small diametrical dimensions creates reliable operation of the product.

2 cl, dwg