Patent ID: 7886586
Filing Date: 2011-02-15
Classification: B60R

Abstract:
1. An abnormality detection device of a fuel pump for a jet propulsion boat, the fuel pump being driven by an electric motor, and the boat being propelled by ejecting water drawn through a water jet pump that is driven by an engine using a fuel pumped from a fuel tank by operation of the fuel pump, the abnormality detecting device comprising: an abnormality detection circuit including a resistance disposed between a power supply side of the electric motor and a ground side of the electric motor, the resistance arranged in the abnormality detection circuit to be in parallel with the electric motor when the electric motor is provided with electric current from a power supply; a voltage detection unit arranged to detect a voltage value of the abnormality detection circuit; and a warning unit arranged to issue a warning when the voltage value detected by the voltage detection unit is larger than an upper limit of a normal range or smaller than a lower limit of the normal range.