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US 12,113,423 B2Granted
Electric motor with integrated pump
AssigneeDana Motion Systems Italia S.R.L.
InventorsDavid Gambuzzi, Luca Buscicchio
Life of this patent
Estimating the term…
Abstract
A system is disclosed including an electric motor having a rotor shaft, a hydraulic pump including a gear; and an end bell housing enclosing an end of the electric motor, the end housing having a plurality of cooling fins, the end housing further supporting the gear coupled to the rotor shaft, the gear pressurizing hydraulic fluid.
Claims19
A system, comprising:
- an electric motor having a rotor shaft;
- a hydraulic pump including a gear;
- and
- an end bell housing enclosing an end of the electric motor, the end bell housing having a plurality of cooling fins, the end bell housing further supporting the gear coupled to the rotor shaft, the gear pressurizing hydraulic fluid and coupled to the rotor shaft via a shaft gear insert inserted into a coupling cavity of the gear, wherein the gear is an upper gear of a pair of gears, wherein the end bell housing is a single, continuous, and monolithic end housing, and an independent gear is configured to support the rotor shaft and the pair of gears, and wherein the independent gear is a counter rotational balance to the rotor shaft.
1 more element
A system, comprising:
- a vehicle including an electric motor having a rotor shaft, a pair of gears forming a hydraulic pump, and an end bell housing enclosing an end of the electric motor, the end bell housing having a plurality of cooling fins, the end bell housing further supporting the pair of gears, with one of the pair of gears directly coupled to and driven by the rotor shaft, the end bell housing thereby supporting the hydraulic pump, wherein the rotor shaft comprises a shaft gear insert that extends into a coupling cavity of an upper gear of the pair of gears, wherein the end bell housing is a single, continuous, and monolithic end bell housing, and an independent gear is configured to support the rotor shaft and the pair of gears, and wherein the independent gear is a counter rotational balance to the rotor shaft;
- and
- the vehicle further including a hydraulic system with an actuator, the hydraulic system fluidically coupled with the hydraulic pump, the pump generating pressure to drive the actuator.
A system, comprising:
- an electric motor having a rotor shaft;
- a pair of gears forming a hydraulic pump;
- and
- an end bell housing with a substantially circular perimeter, the end bell housing enclosing an end of the electric motor, the end bell housing having a plurality of cooling fins, the end bell housing further supporting the pair of gears coupled to a shaft gear insert of the rotor shaft inserted into a coupling cavity of an upper gear of the pair of gears, a lower gear of the pair of gears coupled to an independent gear that is a counter rotational balance to the rotor shaft, the end bell housing supporting the hydraulic pump via bearings coupled in the end bell housing, and the end bell housing closed by a pump flange directly coupled to the end bell housing.
1 more element
Dependencies are inferred from the claim text.