Jet pump with ceramic venturi

Details Jet pump with ceramic venturi Jet pump with ceramic venturi

1977-05-09

1979-01-23

Croyle, Carlton R.

Pumps

One fluid pumped by contact or entrainment with another

Jet

417195, 417DIG1, 417172, F04F 544

Patent

active

041358619

ABSTRACT:
A jet pump has a nozzle for a power fluid, a Venturi for the power fluid and a well fluid, and a passage for the well fluid radially outside the Venturi and into the discharge of the nozzle. The power fluid aspirates the well fluid and the combined stream enters the Venturi. The Venturi is ceramic for erosion control. A shell sheaths the ceramic throughout its length and loads the ceramic compressively to provide a compressive preload on it. This preload opposes radial, outward acting stress in the Venturi arising from a greater fluid pressure within the Venturi than the fluid pressure outside it. The preload also produces a friction lock to keep the Venturi from sliding out of the shell because of an axial pressure differential.

REFERENCES:
patent: 2463317 (1949-03-01), Sanders
patent: 2489636 (1949-11-01), Gurley
patent: 2909127 (1959-10-01), Bradaske
patent: 3601513 (1971-08-01), White

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