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Structures Of Non-Positive Displacement Pumps
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Abstract
Folding supporting structure, essentially characterized by being composed of a set of cylindrical elements of little diameter, whose general form consists of two rectilinear coplanar sections, joined by three others that adopt the general form of stylized z and finding the various rods, related to each other by a impeller formed by two flat discs provided with a number of holes equal to that of rods to be supported, related to each other by a central axis fixed by means of retaining washers and the distance between the two discs of the impeller being equal to that of the area intermediate of the z that defines the central sections of the rods, all of which are arranged in such a way that in the folded position they are located parallel to each other and in the unfolded position, they take the form of a hyperboloid. (Machine-translation by Google Translate, not legally binding)