| 摘要 |
<p>An electric pump including: a housing (H); an outer rotor (5); an inner rotor (4); a base member (1) facing one side surface of the outer rotor (5) and one side surface of the inner rotor (4); a side plate member (6), having a facing surface (6a) facing the other side surface of the outer rotor (5) and the other side surface of the inner rotor (4) and a non-facing surface (6b) opposed to the facing surface (6a); a shaft (3); a suction port (10); a discharge port (11); a negative pressure applied region (100); a positive pressure applied region (110); and a relief valve (R), discharging the fluid from the positive pressure applied region (110) to a non-facing surface (6b) side of the side plate member (6) when a pressure applied at the positive pressure applied region (110) exceeds a predetermined value.
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