Patent ID: 6158983
Filing Date: 2000-12-12
Classification: B62D,F04C

Abstract:
An apparatus comprising:a gear pump unit having an inlet and an outlet, said gear pump unit includes a plurality of rotatable gears which are disposed in meshing engagement and are rotatable relative to each other to induce a flow of hydraulic fluid through said gear pump unit from said inlet to said outlet;a plate member connected to said gear pump unit;a tubular stem extending from said plate member in a direction away from said gear pump unit;an electric motor connected with said plate member, said electric motor includes a stator which extends around and is fixedly connected to said tubular stem in a coaxial relationship with said tubular stem, and a rotor which extends around said stator and is rotatable about an axis which is coincident with a central axis of said tubular stem and said stator; anda drive shaft which is fixedly connected with said rotor and is disposed in a coaxial relationship with and extends through said tubular stem, said drive shaft being connected with one of said gears in said gear pump unit, said drive shaft and said one gear in said gear pump unit being rotatable together about the central axis of said tubular stem.