Centrifugal pump with dismountable diffuser

Details Centrifugal pump with dismountable diffuser Centrifugal pump with dismountable diffuser

1981-06-10

1984-01-10

Hornsby, Harvey C.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Vane or deflector

415190, 291568CF, F03B 318

Patent

active

044250819

ABSTRACT:
A diffuser having at least three parts separable and couplable along coupling surfaces passing through the whole of its body between its inner and outer surfaces and between its coupling end with the suction pipe and its opposite end. Each of the parts of the diffuser is machined along an annular groove portion with a trapezoidal cross-section and includes an annular projection. The volute comprises an annular groove for the engagement of the projections. A centering part including an annular portion with a trapezoidal cross-section is removably fixed to the volute and is engaged in the groove formed by the groove portions. The invention is particularly applicable to primary pumps of pressurized water nuclear reactors.

REFERENCES:
patent: 3024968 (1962-03-01), Payne et al.
patent: 3953147 (1976-04-01), Aspinwall

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