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.
Patent No.:
Date of Patent:
Jun. 08, 1999
Filed:
Dec. 22, 1997
Jeffrey Scott Hepburn, Dearborn, MI (US);
Richard Eugene Baker, Dearborn Heights, MI (US);
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
A direct injection spark ignition engine is disclosed in which fuel is injected during a compression stroke of each combustion chamber for stratified mode operation. Additional fuel is injected into each combustion chamber during its exhaust stroke while operating in the stratified mode to provide an exotherm for heating the NOx trap in response to a low temperature indication. When total fuel injected into the combustion chamber exceeds a predetermined value, engine operation is switched from the stratified to the homogeneous mode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile