The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 27, 2008

Filed:

Aug. 28, 2006
Applicant:

James G. Davidson, Paris, TN (US);

Inventor:

James G. Davidson, Paris, TN (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 41/00 (2006.01); F02B 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method and apparatus for reducing the emissions and improving the performance of an internal combustion engine (). An input air stream is separated into an oxygen-enriched air stream and a nitrogen-enriched air stream. The nitrogen-enriched air stream is received by a holding chamber (). The oxygen-enriched air and a combustible fuel are provided to a combustion chamber () of the internal combustion engine () and a combustion process is initiated. After a predefined time delay, a volume of nitrogen-enriched air is provided from the holding chamber () to the combustion chamber () to be used during the rest of the combustion process.


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