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US 9,175,680 B2Granted
Electric oil pump system
AssigneeJtekt Corporation
InventorsJunichi Miyaki, Katsutoshi Nisizaki, Yoshihiro Oono, Naotake Kanda
Life of this patent
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Abstract
A stator is fixedly fastened at its outer periphery by a cylindrical and thin metal collar. One end of the collar is engaged with a pump housing. Multiple metal nuts are embedded in insulators fitted to stator cores through insert molding. The stator of a brushless motor is fixed by screwing bolts passed through the pump housing from a pump plate, to nuts embedded in the insulators.
Claims6
An electric oil pump system, comprising:
- an oil pump;
- an electric motor that is arranged next to the oil pump in an axial direction, and that rotates the oil pump;
- a housing of the oil pump and an electric motor housing being fastened together via a stator of the electric motor;
- a cylindrical fixing member that is formed of a metal member and that fixes a stator core of the stator arranged radially inward of the cylindrical fixing member;
- a hole extending through the stator core in the axial direction;
- and
- a fastener disposed in the hole, secured to the oil pump, and directly secured in contact with a side of the stator core opposite the oil pump;
- the cylindrical fixing member being engaged with the housing of the oil pump and fixing the stator.
5 more elements
Dependencies are inferred from the claim text.