Pumps – One fluid pumped by contact or entrainment with another – Jet
Patent
1976-06-01
1978-07-18
Vrablik, John J.
Pumps
One fluid pumped by contact or entrainment with another
Jet
F04F 510, F04F 542, F04F 546
Patent
active
041012461
ABSTRACT:
A vortex jet pump is provided in which circumferential flow in a fluid flow passage through the pump is induced by a tangential power liquid jet inlet into the passage between its suction inlet and its outlet. The pump, which has no moving parts, has a housing providing a fluid flow passage between a pumped fluid suction inlet and a pumped fluid outlet downstream therefrom. Downstream from the power liquid jet inlet there is a throat in the passage having a flow cross section less than the flow cross section of the passage adjacent the power inlet jet inlet. A diffuser section is provided in the passage downstream from the throat and includes means for converting primarily circumferential fluid flow to primarily axial fluid flow in the passage. Preferably such means comprises fixed vanes in the passage downstream for the power liquid let inlet. Means are provided upstream from the power liquid jet inlet for injecting fluid into the passage in a primarily tangential direction for initiating circumferential flow in the passage. The velocity head of the injected fluid is less than the velocity head of the power liquid injected through the jet inlet to minimize cavitation.
REFERENCES:
patent: 334597 (1886-01-01), Marsh
patent: 1175462 (1916-03-01), Leblanc
patent: 2892582 (1959-06-01), O'Rourke
patent: 3089637 (1963-05-01), Bell
patent: 3301606 (1967-01-01), Bruno
patent: 3672790 (1972-06-01), White
Gluck Richard E.
Kobe Inc.
Vrablik John J.
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