Liquid fuel purification system
AssigneeTeledyne Industries, Inc.
InventorWalter F. Isley
Life of this patent
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Abstract
A liquid fuel purification system has a centrifuge in parallel with a conventional filter. Both the centrifuge and the filter are in fluid communication with a reservoir of liquid fuel and with a user of liquid fuel, such as an internal combustion engine. A by-pass valve device selectively effects the movement of fuel through either the centrifuge or the filter responsively to centrifuge speeds. The latter, in a preferred embodiment, is responsive to engine speeds.
Claims7
In a liquid fuel flow system wherein fuel flowing through said system under pressure between a source of fuel and a user of such fuel is freed from contaminants, the improvement which comprises the combination of
- a. a centrifuge having an inlet port in liquid communication with said source, an outlet port in liquid communication with said user, and a rotatable cylindrical drum adapted to effect the packing of particulate matter against the inside wall thereof;
- b. means for rotating said centrifuge;
- c. a filter having an inlet port in liquid communication with said source, and an outlet port in liquid communication with said user;
- and
- d. bypass means to effect the flow of fuel through either said centrifuge or said filter, said means comprising a first valve responsive to centrifugal force to effect the flow of fuel through said centrifuge and a second valve responsive to fuel pressure above a predetermined level for effecting the flow of fuel through said filter, and
- e. wherein flow of fuel through said centrifuge reduces the pressure of said fuel below said predetermined pressure.
Dependencies are inferred from the claim text.