Leakage of a combustion gas is prevented by installing a seal ring in an annular groove provided in the outer peripheral surface of a fuel injection valve. The data integration apparatus receives sensing information from at least one sensing device, the sensing information including a value indicating the existence of signals and confidence estimated parameters indicating the degree of confidence for the value indicating the existence of signals, and then generates the weighting factor based on the confidence estimated parameters. The method also includes determining electrically conductive areas of the gradient system, which during operation of the magnetic resonance imaging system, generate a Lorentz force component that contributes to the excitation force components. In another embodiment, the lid and the storage compartment are integral in normal configuration, but can be separated once removed from the floor.