Method for operating an internal combustion engine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7293544
APP PUB NO 20070209633A1
SERIAL NO

10577763

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method retains exhaust gas in the combustion chamber of an internal combustion engine and compresses the exhaust gas during a charge change. A first fuel quantity is injected into the retained exhaust gas by direct fuel injection. A second fuel quantity is subsequently fed to the combustion chamber so that a homogeneous fuel/air mixture is obtained in the combustion chamber. An auto-ignition time of the fuel/air mixture which is formed from the first and second fuel quantities is set as a function of a quantity ratio of the first fuel quantity to the second fuel quantity.

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Patent Owner(s)

Patent OwnerAddress
DAIMLER AG70372 STUTTGART

International Classification(s)

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  • 2004 Application Filing Year
  • F02B Class
  • 713 Applications Filed
  • 257 Patents Issued To-Date
  • 36.05 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200420052006200720082009201020112012201320140255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brachert, Goetz Stuttgart, DE 3 18
Herweg, Ruediger Esslingen, DE 13 57
Kanning, Kai Stuttgart, DE 11 46
Pfau, Matthias Ludwigsburg, DE 22 95
Schaeflein, Jochen Stuttgart, DE 8 42
Weimann, Hans Juergen Oppenweiler, DE 3 17

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Patent Citation Ranking

  • 1 Citation Count
  • F02B Class
  • 2.14 % this patent is cited more than
  • 18 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges51346026521101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 700102030405060708090100110120130140150

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