Ducted combustion chamber for direct injection engines and method
An internal combustion engine includes an engine block having a cylinder bore and a cylinder head having a flame deck surface disposed at one end of the cylinder bore. A piston connected to a rotatable crankshaft and configured to reciprocate within the cylinder bore has a piston crown portion facing the flame deck surface such that a combustion chamber is defined within the cylinder bore and between the piston crown and the flame deck surface. A fuel injector having a nozzle tip disposed in fluid communication with the combustion chamber has at least one nozzle opening configured to inject a fuel jet into the combustion chamber along a fuel jet centerline. At least one duct defined in the combustion chamber between the piston crown and the flame deck surface has a generally rectangular cross section and extends in a radial direction relative to the cylinder bore substantially along the fuel jet centerline.
- Research Organization:
- Caterpillar Inc., Deerfield, IL (United States)
- Sponsoring Organization:
- USDOE
- Assignee:
- Caterpillar Inc. (Peoria, IL)
- Patent Number(s):
- 8,967,129
- Application Number:
- 13/014,154
- OSTI ID:
- 1171702
- Resource Relation:
- Patent File Date: 2011 Jan 26
- Country of Publication:
- United States
- Language:
- English
Swirl-producing fuel injection nozzle and system and method incorporating same
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patent | June 2004 |
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