| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the size of an electric oil pump 1 as a whole, and to obtain smooth pump operation. <P>SOLUTION: The electric oil pump 1 includes: a cylindrical housing 2; a cylindrical outer rotor 3 which is rotatably engaged with the internal periphery of the housing; an eccentric inner rotor 4 positioned at the internal peripheral side of the outer rotor 3; and a plurality of connecting plates 5 which connect both rotors. Nine pieces of coils 11 are arranged in the housing 2, and six pieces of permanent magnets 18 are arranged at the outer rotor 3, thus constituting a three-phase six-pole nine-slot motor. The connecting plates 5 are supported to a plate holding groove 21 at the internal periphery of the outer rotor 3 so as to be oscillatory, and their internal peripheral ends are accommodated in slots 26 of the inner rotor 4. The inner rotor 4 is rotated following the outer rotor 3 by these connecting plates 5, and oil is pressure-sent to a discharge port 13 from a suck-in port 12. <P>COPYRIGHT: (C)2012,JPO&INPIT |
