Patent ID: 7775765

Claim:
A fluid pump, comprising: a pump casing having a pump chamber formed in the interior thereof and an inlet and an outlet for fluid which are connected to the pump chamber; a bearing installed on the outer surface of a cylindrical portion projecting outwards from the pump casing; a pump drive member which covers the cylindrical portion from the outer periphery side and that is rotatably installed on the pump casing via the bearing; a shaft member whose one end is attached to the pump drive member, and which passes through an aperture formed in the cylindrical portion and projects into the pump chamber; a vane wheel installed on the other end of the shaft member, positioned within the pump chamber; sealing means comprising a body side sealing member installed on the cylindrical portion in the inner periphery of the aperture and a shaft side sealing member installed on the shaft member opposite to the body side sealing member in the axial direction, wherein fluid is drawn in from the inlet and expelled from the outlet by the rotation of the vane wheel within the pump chamber via the shaft member which rotates due to the rotation action of the pump drive member driven by a power source, and the load support plane which includes the center of the load support of the bearing and which extends perpendicularly to the axial direction and the sealing plane on which the body side sealing member and the shaft side sealing member oppose and contact each other and which is perpendicular to the axial direction are substantially coincidental; wherein the pump casing comprises a base member having the inlet and the outlet, and a body member which covers the inlet and the outlet and which is installed on the base member, and the cylindrical portion is formed in the body member.