FLUID PRESSURE GENERATING DEVICE

摘要

PURPOSE:To produce a sufficient effect pump effect without lowering electric motor performance and to improve the cooling effect of an electric motor. CONSTITUTION:In an electric motor integral type fluid pressure generating device wherein a cylinder block 7 having a plurality of pistons 5 is incorporated in the rotor 3 of an electric motor 4, a casing 1 is provided with the inflow port 41 for cooling fluid and an outflow port 42 opened to the internal space 1d of the casing 1. A radial passage 43 extending from the central side toward the outer peripheral side and effecting centrifugal operation is formed in the cylinder block 7 and the cooling fluid is delivered in the internal space 1d.