Pumping system for controlling pumping speed during...

Details Pumping system for controlling pumping speed during... Pumping system for controlling pumping speed during...

2006-05-09

2006-05-09

Freay, Charles (Department: 3746)

Pumps

Condition responsive control of pump drive motor

By controlling internal combustion drive engine

C417S043000

Reexamination Certificate

active

07040868

ABSTRACT:
The pressure downstream of a pump is measured and the speeds of the engine and pump are controlled in response to pressure changes downstream of the pump by a controlling element overriding a governor of the engine. The speed of the engine and the pump are connected to and controlled by an engine governor.

REFERENCES:
patent: 3786869 (1974-01-01), McLoughlin
patent: 3974879 (1976-08-01), Nelson et al.
patent: 3981618 (1976-09-01), Nelson, Jr.
patent: 4128476 (1978-12-01), Rock
patent: 5888051 (1999-03-01), McLoughlin et al.

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