Internal-combustion engines – Engine speed regulator – Open loop condition responsive
Reexamination Certificate
2005-05-10
2005-05-10
Kwon, John T. (Department: 3747)
Internal-combustion engines
Engine speed regulator
Open loop condition responsive
C123S399000, C073S118040, C073S114220
Reexamination Certificate
active
06889654
ABSTRACT:
A watercraft has an engine that is controlled by an electronic control unit and the engine is controlled by an electronic throttle. The electronic throttle is actuated by a motor that is controlled by and electronic control unit. The ECU operates the electronic throttle according to a torque request from an operator. The electronic throttle is also periodically and/or at predetermined time intervals actuated to ensure proper operation of the throttle valve.
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Knobbe Martens Olson & Bear LLP
Kwon John T.
Yamaha Marine Kabushiki Kaisha
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