Water pumps

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

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416185, 416188, F04B 4900

Patent

active

057497079

ABSTRACT:
A water pump comprises an impeller including a rotor main body and vanes arranged to protrude from an end face of the rotor main body and disposed radially. Each vane has an inlet portion which faces an inlet port of a housing and has an inner end which is substantially perpendicular to the direction of cooling water flowing from the inlet port to the inner periphery of each vane. The inlet portion of the vane has a circular arc with an inclination angle which is substantially identical to an inflow angle of cooling water.

REFERENCES:
patent: 1946273 (1934-02-01), Carr
patent: 3734650 (1973-05-01), Reisacher et al.
patent: 4108570 (1978-08-01), Yamabe
patent: 5478200 (1995-12-01), Brodersen et al.
C. Pfeiderer "Die Kreiselpumpen Fussigkeiten und Gase", Springer-Verlag, 4th ed., pp. 211 and 212, Fig. 123.
B. Eck "Ventilatoren" Springer-Verlag, 5th ed., pp. 99 and 100, Fig. 70.

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