Impeller type fluid pump

Details Impeller type fluid pump Impeller type fluid pump

1977-01-19

1978-09-26

Croyle, Carlton R.

Rotary kinetic fluid motors or pumps

Including additional means causing or controlling fluid flow...

415177, F01D 2512, F04D 2958, F03B 1100

Patent

active

041165829

ABSTRACT:
An integral pump and drive shaft assembly in which the pump has a generally cylindrical side wall, a generally vertical back wall, and a front wall having an inlet opening; an impeller is rotatably mounted in the housing so formed and the impeller also includes a generally vertical rear wall and front wall and also an inlet eye centrally located in the front wall; the impeller also has a series of circumferentially space apart and curved vanes located between and fixed to its front and rear walls. A tubular coil heat exchanger is located in a forward portion of the pump housing whereby water entering the inlet opening passes over the heat exchanger. A diffuser is mounted on the rear wall of the pump housing and is concentric with the impeller; the diffuser also has a series of circumferentially spaced curved vanes for receiving water which is discharged from the impeller. The vanes of the diffuser are curved in a direction opposite to the direction in which the impeller vanes are curved. The drive shaft assembly includes a housing rigidly secured at one end to the rear wall of the pump housing and extends therefrom. A drive shaft extends through the pump housing and is rotatably mounted therein and is furthermore connected in driving relationship with the impeller. Bearing means are in the shaft housing for rotatably supporting the shaft and include a fluid seal between the shaft housing and shaft. The engine driven impeller type pump of the assembly is of low specific speed and capable of a high vacuum (lift). The pump has a large impeller which operates at an efficient point in its characteristic curve and which functions to efficiently draw against a high content of air in the pumping system in which it is connected, and in doing so operates at an efficient manner from a fuel consumption standpoint.

REFERENCES:
patent: 1958108 (1934-05-01), Milkowski
patent: 2708883 (1955-05-01), Keller et al.
patent: 3079866 (1966-03-01), Walker
patent: 3506373 (1970-04-01), Danker et al.
patent: 3759628 (1973-09-01), Kempf

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