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:
May. 27, 2008
Filed:
Aug. 02, 2006
Carl-anders Hergart, Peoria, IL (US);
William L. Hardy, Peoria, IL (US);
Kevin P. Duffy, Metamora, IL (US);
Michael P. Liechty, Chillicothe, IL (US);
Carl-Anders Hergart, Peoria, IL (US);
William L. Hardy, Peoria, IL (US);
Kevin P. Duffy, Metamora, IL (US);
Michael P. Liechty, Chillicothe, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
An HCCI engine has the ability to operate over a large load range by utilizing a lower cetane distillate diesel fuel to increase ignition delay. This permits more stable operation at high loads by avoidance of premature combustion before top dead center. During low load conditions, a portion of the engines cylinders are deactivated so that the remaining cylinders can operate at a pseudo higher load while the overall engine exhibits behavior typical of a relatively low load.