FIELD: engines and pumps.
SUBSTANCE: welded bellows incorporate membranes with shaped concentric and annular sections, that are consecutively coupled so that to allow approaching and moving apart, each of the said membranes being connected with one adjoining membrane by outer weld and the with the other one by inner weld. Composite membranes crimp is made in the form of one hollow wave that can have various shapes. This invention offers examples of the crimp end faces made perpendicular to the bellows axis or at an angle to its axis, along the curvature of wave d of radius r smaller than the main wave radius R. Radii ratio are also given herein.
EFFECT: higher efficiency of bellows.
7 cl, 9 dwg
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