SEALING STRUCTURE WITH DOUBLE CORRUGATED MEMBRANE Russian patent published in 2024 - IPC F16J15/56 F04B53/02 F04D29/08 

FIELD: piston pumps.

SUBSTANCE: invention relates to piston pump technology, in particular to a sealing structure with a double corrugated membrane, the sealing structure comprises a signal ring for sealing with a pump cylinder block and a pump head, outer side of the pump cylinder block is equipped with a drive part, the inner part of the signal ring is equipped with a membrane, the lower end of the pump head is equipped with an inlet check valve, upper end of the pump head is equipped with an outlet check valve, the sealing structure includes a protective mechanism and an adjustment mechanism, the protective mechanism also includes an additional sealing module and a break signalling module, according to the invention there is an additional sealing module and a stepped groove on the outer and inner circumferences of the sealing chamber the membrane is not compressed.

EFFECT: membrane can be maintained in a free state so that the arc-shaped groove can maintain membrane deformation due to stretching and provide a certain ability to compensate for deformation during stretching to maintain membrane flatness, ensure tightness, achieve long-term stability and reliability of transportation.

10 cl, 7 dwg