Internal-combustion engines – Spark ignition timing control – Electronic control
Reexamination Certificate
2011-05-24
2011-05-24
Cronin, Stephen K (Department: 3747)
Internal-combustion engines
Spark ignition timing control
Electronic control
C701S102000
Reexamination Certificate
active
07946272
ABSTRACT:
A method for determining composition of a fuel blend from a first and at least a second fuel for operating an internal combustion engine. An ignition angle of the internal combustion engine is altered and a non-intermittent fluctuation in torque, which is a function of ignition angle, and/or a non-intermittent rotational discontinuity, and/or a variable derived from the discontinuity is used as a parameter for determining the composition of the fuel blend.
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Cronin Stephen K
Hoang Johnny H
Merchant & Gould P.C.
Robert & Bosch GmbH
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