| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electric supercharger capable of improving the durability of a bearing.SOLUTION: An electric supercharger 101 comprises: an electric motor 30; a compressor wheel 21; a housing 10 that includes a wheel chamber 15 accommodating the compressor wheel 21, and a motor chamber 18 accommodating the electric motor 30; a first bearing 23 disposed in the motor chamber 18 and rotatably supporting a shaft 22 of the electric motor 30 driving the compressor wheel 21 to rotate; a bottom wall 13b of the housing 10 separating the wheel chamber 15 from the motor chamber 18 and penetrated by the shaft 22; and pressure regulation holes 13d and 13e formed to penetrate the bottom wall 13b and making the wheel chamber 15 communicable with the motor chamber 18.</p> |
