FIELD: mechanical engineering; pumps. SUBSTANCE: invention relates to improvement of centrifugal self-priming pumps with preconnected jet devices. Centrifugal self-priming pump has housing with suction and pressure chambers, impeller with outlet and jet device preconnected before impeller. Jet device has curved diffuser with inlet and outlet, and nozzle. Alignment bushing coupled with nozzle is installed at inlet of curved diffuser. Curved diffuser consists of two symmetrical halves and rigidly coupled by means of seat surfaces of pump housing and alignment bushing. EFFECT: increased efficiency, pressure head and delivery of pump. 3 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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