Internal-combustion engines – Charge forming device – Including cylinder pressure or temperature responsive means
Reexamination Certificate
2007-08-28
2007-08-28
Argenbright, T. M. (Department: 3747)
Internal-combustion engines
Charge forming device
Including cylinder pressure or temperature responsive means
C123S02700A, C123S090150, C123S568140
Reexamination Certificate
active
10566901
ABSTRACT:
An arrangement and a method for controlling a combustion engine, e.g. of the type called HCCI engine. A control unit for controlling the self-ignition of the fuel mixture towards an optimum crankshaft angel (cadiopt) within a load range (Ltot). The load range (Ltot) can be divided into at least two subranges (LI, LII) and the control unit is adapted to controlling the self-ignition of the fuel mixture towards an optimum crankshaft angle (cadiopt) within a first subrange (LI) by means of a strategy (I) which entails a variable amount of hot exhaust gases being supplied to or retained in the combustion chamber, and within a second subrange (LII) by means of another strategy (II) which entails the effective compression ratio (c) in the cylinder being varied.
REFERENCES:
patent: 6230683 (2001-05-01), zur Loye et al.
patent: 7073466 (2006-07-01), Bauer et al.
patent: 7204213 (2007-04-01), Weber et al.
patent: 101 06 169 (2002-08-01), None
patent: WO98/10179 (1998-03-01), None
patent: WO 00/28197 (2000-05-01), None
Agrell Fredrik
Linderyd Johan
Argenbright T. M.
Ostrolenk Faber Gerb & Soffen, LLP
Scania CV AB (Publ)
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