MOTOR-DRIVEN PUMP UNIT FOR REALIZING SMALL AXIAL STRUCTURAL SPACE WITHOUT INCREASING RADIUS STRUCTURAL SPACE

摘要

PURPOSE: A motor-driven pump unit is provided to realize a small axial structural space without increasing a radius structural space by constructing an integrated sub-assembly at an outer wall area of a housing unit. CONSTITUTION: A motor driving pump includes a stator core stack(1.1), a winding(1.2), a rotator(1.3), an internal gear pump(2), a pinion, a pinion shaft(2.3), and an eccentric hollow wheel(2.2). The pinion shaft is supported by side disks(2.4,2.5). A motor and a pump are covered by a common housing(3). The housing includes a cylindrical sleeve part(3.1), a slide disk(3.3), and another slide disk(3.2) installed in a U-shaped web area. The side disk includes a pressure control valve(5) and a direction control valve(6) which is arranged in a block(3.3.1). The block is placed along a separation plane(3.4) on a main part of the side disk.