Wartsila Finland Oy

Johan Pensar

Tom Kaas

Tommy Dahlberg

Tom Troberg

Jonas Akerman

Jonas ÅKerman

Silvio Casini

The apparatus according to the invention comprises a controller for forming a speed signal arranged to receive speed measurement data of the internal combustion engine as well as speed reference data. The apparatus additionally comprises a module for forming the internal speed reference value instead of the speed reference value set to be used when forming the control signal.

Apparatus and method for controlling the speed of an internal combustion engine

The aim of the invention is to reduce the frequency change of a electric network in fault situations so that there is no need for protection operations during relatively short imbalances between electricity production and demand thereof. The aim is achieved by means of an apparatus, system and method for electric power supply according to main claims for directing electric power to the electric motor (). The apparatus according to the invention monitors the frequency of the network (). In case the frequency of the network changes sufficiently, the apparatus reacts by changing the amount of electric power directed to the electric motor (). The electric supply network () is provided with an opportunity to change the amount of produced electric energy in a controlled way so that the electric supply network is continuously in operation.

Apparatus, system and method for electric power supply

A control arrangement for a fuel injection apparatus of an internal combustion engine, the fuel injection apparatus comprising at lest two fuel injector nozzles, the injection action of which is controllable via a solenoid, and at least two control units arranged to control the solenoids controlling the injection action. According to the invention, each injector nozzle is provided with a first and second solenoid and the first and second solenoid are in connection with a different control unit.

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Vaasa, Finland

Johan Pensar