Ducted combustion chamber for direct injection engines and method
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- Caterpillar Inc., Deerfield, IL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1171702
- Patent Number(s):
- 8967129
- Application Number:
- 13/014,154
- Assignee:
- Caterpillar Inc. (Peoria, IL)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02F - CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2011 Jan 26
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Mueller, Charles. Ducted combustion chamber for direct injection engines and method. United States: N. p., 2015.
Web.
Mueller, Charles. Ducted combustion chamber for direct injection engines and method. United States.
Mueller, Charles. Tue .
"Ducted combustion chamber for direct injection engines and method". United States. https://www.osti.gov/servlets/purl/1171702.
@article{osti_1171702,
title = {Ducted combustion chamber for direct injection engines and method},
author = {Mueller, Charles},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {3}
}
Works referenced in this record:
Swirl-producing fuel injection nozzle and system and method incorporating same
patent, June 2004
- Parrish, Scott E.
- US Patent Document 6,748,872