Homogenous charge compression ignition engine having a cylinder including a high compression space
The present invention relates generally to the field of homogeneous charge compression engines. In these engines, fuel is injected upstream or directly into the cylinder when the power piston is relatively close to its bottom dead center position. The fuel mixes with air in the cylinder as the power piston advances to create a relatively lean homogeneous mixture that preferably ignites when the power piston is relatively close to the top dead center position. However, if the ignition event occurs either earlier or later than desired, lowered performance, engine misfire, or even engine damage, can result. Thus, the present invention divides the homogeneous charge between a controlled volume higher compression space and a lower compression space to better control the start of ignition.
- Research Organization:
- Caterpillar Inc., Deerfield, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC05-97OR22605
- Assignee:
- Caterpillar Inc (Peoria, IL)
- Patent Number(s):
- 6,668,788
- Application Number:
- 10/029,417
- OSTI ID:
- 1174651
- Country of Publication:
- United States
- Language:
- English
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