Pumping system

Details Pumping system Pumping system

1986-12-05

1988-03-29

Freeh, William L.

Pumps

Expansible chamber type

Having separate noncyclic valve

415116, 415169R, F04B 3900, F01D 2516

Patent

active

047340193

ABSTRACT:
A pumping system employing a main pump and a high pressure centrifugal pump both of which are driven by an engine through a suitable drive is provided with an air clutch device whereby air is selectively introduced into the inlet of the high pressure centrifugal pump to cause air binding of the impellers, this action causing a de-clutching of the high pressure pump by a simple hydraulic action.

REFERENCES:
patent: 4128362 (1978-12-01), Sheppard
patent: 4432442 (1984-02-01), Vogelsang
patent: 4502834 (1985-03-01), Jackson

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