| 摘要 |
PROBLEM TO BE SOLVED: To provide a compressor capable of preventing metal powders from being supplied to a bearing part, while enabling lubricant oil to be continuously supplied to the bearing part, so as to improve bearing reliability.SOLUTION: A fuel compressor comprises a sealed container, a compression mechanism part stored in the sealed container, an electric motor part for driving the compression mechanism part, a rotation shaft for transmitting the rotational force of the electric motor part to the compression mechanism part, a bearing disposed so as to surround and support the rotation shaft, an oil reservoir part for storing lubricant oil at the bottom of the sealed container, and a recessed bearing oil reservoir part disposed above the bearing. The rotation shaft comprises a first oil supply passage formed in the rotation shaft toward an axial direction of the rotation shaft and a second oil supply passage formed from the first oil supply passage toward a radial direction so as to penetrate through the side surface of the rotation shaft. The lubricant oil of the oil reservoir part flows from the first oil supply passage to the bearing oil reservoir part via the second oil supply passage according to rotation of the rotation shaft, and then flows out from the bearing oil reservoir part so as to be supplied to the bearing. |
