DIAPHRAGM PUMP PRODUCED BY MULTICOMPONENT CASTING

摘要

FIELD: engines and pumps.SUBSTANCE: invention relates to machine building. Fluid transfer section of two-diaphragm air drive pump 10 consists of two fluid chambers 12, intake manifold 14 and discharge manifold 16. Housing should be made in two steps. Polypropylene is, preferably, the material of carcass 18 reinforced with glass fibre is poured in for production of final article with the material of shell 20. Carcass 18 features such design that facing material of shell 20 cab flow from one side to another to allow mechanical adhesion between carcass outer surface 22 and shell inner surface without chemical adhesion between two materials.EFFECT: decreased amount of precious materials.5 cl, 3 dwg