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Title: Spark-ignited direct-injection engine combustion systems

Patent ·
OSTI ID:1735047
; ;

A direct-injection stratified charge internal combustion engine includes a combustion cylinder to receive an air-fuel mixture, and an air intake port to inlet air into the combustion cylinder. The direct-injection engine also includes a fuel injector configured to deliver fuel within the cylinder in a spray pattern substantially aligned to a cylinder central axis to create the air-fuel mixture. A spark igniter is located within a path of the spray pattern to ignite combustion of the air-fuel mixture. The direct-injection engine further includes a movable piston defining a lower boundary of the combustion cylinder to contain the combustion of the air-fuel mixture. The piston is configured to include a bowl portion having local geometric features located on an intake port side of the combustion cylinder to redirect fluid flow towards a vortex in fluid communication with a combustion location near the cylinder central axis.

Research Organization:
GM Global Technology Operations LLC, Detroit, MI (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0006853
Assignee:
GM Global Technology Operations LLC (Detroit, MI)
Patent Number(s):
10,718,258
Application Number:
15/355,343
OSTI ID:
1735047
Resource Relation:
Patent File Date: 11/18/2016
Country of Publication:
United States
Language:
English

References (23)

Direct injection gasoline engine with stratified charge combustion and homogeneous charge combustion patent July 2001
Large-bore, medium-speed diesel engine having piston crown bowl with acute re-entrant angle patent October 2008
Combustion chamber structure having piston cavity patent July 1999
Spark ignition direct injection engine with oval fuel spray into oblong piston bowl patent July 2003
Vortex-induced stratification combustion for direct injection spark ignition engines patent April 2004
Piston for internal combustion engine patent April 2018
Incylinder direct injection spark ignition engine patent March 2004
Piston for internal combustion engines, especially diesel engines patent February 1997
Direct Fuel Injection Internal Combustion Engine patent-application June 2005
In-cylinder injection, spark ignited internal combustion engine patent June 2006
Method and apparatus for a spark-ignited direct injection engine patent February 2009
Fuel injection type internal combustion engine patent September 1988
Combustion chamber for reverse tumble spark ignition direct injection engine patent June 2004
Compression-ignition direct-injection combustion engine and fuel injection method for same patent February 2018
Piston for an internal combustion engine having a re-entrant type combustion bowl patent November 2000
Combustion chamber for DISI engine patent September 2003
Structure of combustion chamber in diesel engine patent January 1988
Direct injection internal combustion engine patent April 2002
Three-reentrancy combustion chamber patent October 2005
Direct-injection spark ignition engine patent January 2004
Internal combustion engine patent March 1991
Piston of an Internal Combustion Engine patent-application April 2015
Direct-Injection Spark-Ignition Engine patent-application November 2002

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