Clutch connected multi-stage impeller pump

Details Clutch connected multi-stage impeller pump Clutch connected multi-stage impeller pump

1975-04-17

1976-06-08

Freeh, William L.

Rotary kinetic fluid motors or pumps

With control means responsive to non-cyclic condition...

Control of clutch or brake surface

415123, 417223, B27C 900

Patent

active

039618595

ABSTRACT:
A boost pump incorporates a low-flow impeller pump for charging the inlet of a gas producer fuel pump and a high-flow impeller pump for charging the inlet of an augmentor fuel pump. The low-flow pump is connected to a drive shaft so as to be continuously driven thereby. The drive shaft may be placed in driving connection with the high-flow pump through the medium of a friction clutch which is engageable by the application of a fluid pressure. Disengagement of the high-flow impeller, when augmentation is not required, significantly contributes to an increase in pump efficiency and a reduction in heating of the fluid being pumped.

REFERENCES:
patent: 2464144 (1949-03-01), McConagny
patent: 2755903 (1956-07-01), McAninch et al.
patent: 3576375 (1971-04-01), Jackson
patent: 3663117 (1972-05-01), Warren

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