Method for supplying liquids by means of a pump combination comp

Details Method for supplying liquids by means of a pump combination comp Method for supplying liquids by means of a pump combination comp

1998-06-26

2000-09-05

Freay, Charles G.

Pumps

Expansible chamber type

Plural pumping chambers

417 53, F04B 1100

Patent

active

06113368&

ABSTRACT:
A method and apparatus for supplying liquids by means of a pump combination comprising two single oscillating displacement pumps is provided, wherein a supply pressure of the pump supplying liquid into a user duct is used as a control value of a pressure controller, such that a pressure stroke movement of the other pump which is generating a pre-compression pressure, is discontinued when the pre-compression pressure equals the supply pressure, and the pre-compression pressure is maintained.

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patent: 5755561 (1998-05-01), Coulliard et al.

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