Apparatus for eliminating the effects of cavitation in a main pu

Details Apparatus for eliminating the effects of cavitation in a main pu Apparatus for eliminating the effects of cavitation in a main pu

1975-04-17

1977-05-24

Vrablik, John J.

Pumps

Diverse pumps

Including rotary nonexpansible chamber type

417206, 417251, 417252, 222146H, F04B 2304, B67D 562

Patent

active

040252388

ABSTRACT:
Apparatus for eliminating cavitation in a main pump in which the rotor of a supercharging pump is connected to the rotor of the main pump such that the latter rotor drives the rotor of the supercharging pump. Permanent communication is established between the delivery side of the supercharging pump and the induction inlet of the main pump. A hydraulic fluid reservoir is connected to the inlet of the supercharging pump and it is also connected to the delivery side of the supercharging pump through the intermediary of a valve which controls the flow of hydraulic fluid to the reservoir from the delivery side of the supercharging such that when the pressure at the induction inlet of the main pump exceeds a predetermined value flow is established to the reservoir in order to avoid the appearance of cavitation in the main pump. Leakage flow within the main pump is also recycled to the reservoir continuously through the valve.

REFERENCES:
patent: 2365309 (1944-12-01), Talbot
patent: 2604047 (1952-07-01), Beaman et al.
patent: 2743674 (1956-05-01), Shaw
patent: 2999463 (1961-09-01), Johnson
patent: 3053186 (1962-09-01), Gondek
patent: 3066609 (1962-12-01), Hann
patent: 3202101 (1965-08-01), Tinker et al.
patent: 3380392 (1968-04-01), Boers
patent: 3672793 (1972-06-01), Yowell

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