Peripheral-longitudinal diffusser for a single-impeller centrifu

Details Peripheral-longitudinal diffusser for a single-impeller centrifu Peripheral-longitudinal diffusser for a single-impeller centrifu

1991-06-06

1993-07-13

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Vane or deflector

4151721, 4151821, 415226, 415228, F01D 106

Patent

active

052267903

ABSTRACT:
The invention discloses a single-impeller pump with a diffuser (1, 40, 50, 60, 80, 100, 120, 130) arranged in front of the impeller (14, 46, 57, 107) on the suction side of the impeller (14,46,57,107) which evolves in the longitudinal direction toward the pressure chamber (21,67,112) with channels (10, 72, 90, 109, 128, 139) arranged around the periphery of the funnel or wall (13, 42, 52, 69, 88, 102, 125, 135) which is present within the pump casing (11, 66, 85, 114, 127, 136) and is comprised between the suction opening (27), or an eventual ejector (44, 104), and the casing cover (12, 56, 64, 84, 110, 123, 133). The channels (10, 72, 90, 109, 128, 139) act as diffusers and send longitudinally and without any rotation into the pressure chamber (21, 67, 112) the flow streaming out of the impeller (14, 46, 57, 107) which is conveyed into the longitudinal channels (10, 72, 90, 109, 128, 139) by baffles (17, 63, 83, 122, 132) and blades (16, 62, 82) arranged around the periphery of the impeller (14, 46, 57, 107).

REFERENCES:
patent: 2766698 (1956-10-01), Carter
patent: 2934021 (1956-10-01), Conery et al.
patent: 2941474 (1956-08-01), Hall
patent: 3307485 (1967-03-01), Logue
patent: 3826589 (1974-07-01), Frank et al.
patent: 3920352 (1975-11-01), Speck et al.
patent: 4453886 (1984-06-01), Wilson
patent: 5069599 (1991-12-01), Carretta
The "Bud-Jet" Pump Publication Brochure Form No. 269-1, published by Aermotor Company, Nov., 1958.

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