BELLOWS BY MAXIMOF Russian patent published in 2010 - IPC F16J3/04 

FIELD: machine building.

SUBSTANCE: bellows consists of set of axially symmetrical movable elements pressure tight interconnected. The set of movable elements corresponds to a successively alternating two laminar elements one of which is made as an elastic membrane, while another is made as a rigid non-deformed plate with a central orifices in it. On one side the elastic membrane with its central part is pressure tight secured around the orifice to an above positioned rigid plate. On another side it is fixed along perimetre of the below located plate. The following membrane is arranged in the reverse order thus forming movable elements. External dimensions of plates set decrease step-by-step from maximal value; for example, in a movable part of the assembly the end plate is fixed on a movable platform of the whole assembly, while the smallest by dimension plate is fixed on the immobile platform equipped with an orifice letting flow of working medium inside the bellows. A stepped conductor is secured to an upper movable platform of the bellows; in the process of working elongation of the whole assembly the conductor with its internal steps forces each rigid plate and correspondingly coupled with it elastic membrane moving out to a structurally specified maximal level of their mutual separation.

EFFECT: raised reliability.

13 dwg, 6 cl