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Title: Diesel engine emissions reduction by multiple injections having increasing pressure

Multiple fuel charges are injected into a diesel engine combustion chamber during a combustion cycle, and each charge after the first has successively greater injection pressure (a higher injection rate) than the prior charge. This injection scheme results in reduced emissions, particularly particulate emissions, and can be implemented by modifying existing injection system hardware. Further enhancements in emissions reduction and engine performance can be obtained by using known measures in conjunction with the invention, such as Exhaust Gas Recirculation (EGR).
Authors:
 [1] ;  [1]
  1. (Madison, WI)
Publication Date:
OSTI Identifier:
875080
Report Number(s):
US 6526939
DOE Contract Number:
FG04-2000AL66549
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
diesel; engine; emissions; reduction; multiple; injections; increasing; pressure; multiple; fuel; charges; injected; diesel; engine; combustion; chamber; combustion; cycle; charge; successively; injection; pressure; injection; rate; prior; charge; injection; scheme; results; reduced; emissions; particulate; emissions; implemented; modifying; existing; injection; hardware; enhancements; emissions; reduction; engine; performance; obtained; measures; conjunction; exhaust; gas; recirculation; egr; combustion chamber; diesel engine; diesel engine; multiple fuel /123/