Internal-combustion engines – Engine speed regulator – Charge proportion varying
Reexamination Certificate
2007-08-10
2009-02-24
Wolfe, Jr., Willis R. (Department: 3747)
Internal-combustion engines
Engine speed regulator
Charge proportion varying
C123S406240, C123S406470
Reexamination Certificate
active
07493889
ABSTRACT:
In a method for controlling a composition of a fuel/air mixture supplied to an internal combustion engine, which engine has a speed control circuit maintaining an actual rotary speed of the crankshaft within preset limits and a controllable metering device for at least one component of the fuel/air mixture, a disruptive variable is introduced into the valve control circuit at a predeterminable point in time, the activity of an engine speed control circuit is monitored and evaluated immediately after introducing the disruptive variable, and, depending on the evaluation result, at least one parameter having an effect on the operation of the internal combustion engine is adjusted.
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Naegele Claus
Nickel Hans
Andreas Stihl AG & Co. KG
Hoang Johnny H.
Huckett Gudrun E.
Wolfe, Jr. Willis R.
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