| 摘要 |
<p>An electric pump unit which is compact and is reduced in weight and cost. An electric pump unit is provided with a pump chamber (9) which has an oil suction opening (18) and an oil discharge opening (19) and is formed within a motor stator (5), and the motor stator (5) being provided in a fixed manner to the inner periphery of a synthetic resin unit housing (1) and is configured in such a manner that only a portion of the motor stator, said portion being located on the inner peripheral side, is exposed to the inside of the unit housing (1). A pump outer rotor (10) is disposed within the motor stator (5), which is located within the pump chamber (9), so as to be rotatable while being guided by the inner periphery of the motor stator (5). A pump inner rotor (11) rotatably supported by the unit housing (1) is disposed within the pump outer rotor (10). A motor rotor (14) is formed by causing permanent magnets (13) to be held by permanent magnet holding sections (15) which consist of resin and are integrally molded with the outer periphery of the pump outer rotor (10).</p> |
