Electro-hydraulic power steering apparatus

An electro-hydraulic power steering apparatus comprising:

• a first housing having a support portion;
• a second housing fixed to the first housing;
• a control device disposed in a space surrounded by a side of the first housing and a side of the second housing;
• a motor disposed on another side of the first housing, the motor including a rotor, a stator and a frame, the rotor having a first bearing supported by the support portion and a second bearing, the stator having an iron core, the frame made of iron and making up an outer shell of the motor, the frame including an inner circumferential face into which the iron core is press fitted and a receiving portion which receives the second bearing;
• a pump disposed on another side of the second housing;
• a plurality of first clamp screws for securing the frame to the first housing;
• and
• a second clamp screw for securing the first housing and the second housing;
• wherein the control device, the motor and the pump are integrated;
• the first clamp screw and the second clamp screw are tightened from a motor side of the steering apparatus;
• the first housing includes first threaded portions each having a blind hole;
• the second housing includes second threaded portions;
• a part of the plurality of first clamp screws are tightened to the blind holes of the first threaded portions, and the remainder are tightened to the second threaded portions;
• and
• the control device is disposed between the first threaded portion and the second housing.