Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate
2008-05-27
2008-05-27
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
C123S568110, C060S605200
Reexamination Certificate
active
07377270
ABSTRACT:
A homogeneous charge compression ignition engine operates by injecting liquid fuel directly in a combustion chamber, and mixing the fuel with recirculated exhaust and fresh air through an auto ignition condition of the fuel. The engine includes at least one turbocharger for extracting energy from the engine exhaust and using that energy to boost intake pressure of recirculated exhaust gas and fresh air. Elevated proportions of exhaust gas recirculated to the engine are attained by throttling the fresh air inlet supply. These elevated exhaust gas recirculation rates allow the HCCI engine to be operated at higher speeds and loads rendering the HCCI engine a more viable alternative to a conventional diesel engine.
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PCT International Search Report; Applicant Ref. No.: 06-255; International Appln. No.: PCT/US2007/013603; Filing Date Jun. 8, 2007; Applicant: Caterpillar Inc.
Duffy Kevin P.
Hardy William L.
Hergart Carl-Anders
Kieser Andrew J.
Liechty Michael P.
Caterpillar Inc.
Gimie Mahmoud
Liell & McNeil
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