Method of forming fuel mixture for compression ignition device

Details Method of forming fuel mixture for compression ignition device Method of forming fuel mixture for compression ignition device

2007-12-10

2010-11-09

Toomer, Cephia D (Department: 1797)

Fuel and related compositions

Liquid fuels

C123S00100A

Reexamination Certificate

active

07828861

ABSTRACT:
A new and useful way of producing a used oil fuel mixture for a compression ignition engine is provided. A mass of used oil from which water has been substantially removed, is initially filtered, e.g. to remove particles greater than a predetermined size. The used oil is then centrifuged, under predetermined conditions to remove any remaining water and to remove particles to a predetermined size level. The drained, filtered and centrifuged used oil is then mixed with fuel (e.g. diesel fuel) in a predetermined ratio, to form a used oil fuel mixture and optionally adding an additive (e.g. a diesel fuel additive) to the used oil fuel mixture. Then, the used oil fuel mixture is centrifuged to promote mixing, and the centrifuged used oil fuel mixture is then pumped through one or more final filtering stages, to produce the used oil fuel mixture that is useful with compression ignition engines.

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