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Title: 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:
Publication Date:
Research Org.:
Caterpillar Inc., Peoria, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1171702
Patent Number(s):
8,967,129
Application Number:
13/014,154
Assignee:
Caterpillar Inc. (Peoria, IL) SSO
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 = {Tue Mar 03 00:00:00 EST 2015},
month = {Tue Mar 03 00:00:00 EST 2015}
}

Patent:

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