| 摘要 |
The invention relates to a fluid machine, more particularly to a hybrid compressor for a motor vehicle and has an object to reduce vibration and noises thereof. According to a feature of the present invention, a fluid machine comprises a pump mechanism (compressor) for compressing fluid by receiving a driving force at least from an outside driving source (engine) or an electric motor, wherein when the pump mechanism is driven by the outside driving source (engine), a torque in an opposite phase to a component of torque variation generated at the pump mechanism is applied by the electric motor to the pump mechanism. And thereby the component of the torque variation at the pump mechanism can be set off by the torque in the opposite phase generated at the electric motor to reduce the vibration and noises at the pump mechanism and/or accessories, such as an alternators mounted to the engine.
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