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US 7,732,960 B2Granted
Motor having thrust system
AssigneeEmerson Electric Co.
InventorsBarry M. Newberg, L. Ranney Dohogne, Philip S. Johnson, Gary W. Borcherding, James R. Gore
Life of this patent
Estimating the term…
Abstract
An electric motor includes a stator, a rotor including a rotor shaft having a locating groove formed therein, a thrust system mounted on the rotor shaft, and a locator disposed in the groove for locating the thrust system in a predetermined position.
Claims21
An electric motor comprising:
- a stator,
- a rotor including a rotor shaft having a locating groove formed therein and a protrusion spaced from the locating groove,
- a thrust system mounted on the rotor shaft,
- a locator disposed in the groove for locating the thrust system in a predetermined position, and
- a tolerance system comprising a deformable portion of a component mounted on the shaft adjacent the protrusion and between the locator and the protrusion, the deformable portion being adapted to be deformed by the protrusion to absorb dimensional variation in the thrust system to facilitate the thrust system to be precisely located by the locator regardless of the dimensional variation.
2 more elements
An electric motor comprising:
- a stator,
- a rotor including a rotor shaft having a locating groove formed therein,
- a thrust system mounted on the rotor shaft, the thrust system including an endshield disposed at an end of the stator and rotor, the endshield including radially inward extending notches for receiving fasteners to secure the endshield to the stator, and
- a locator disposed in the groove for locating the thrust system in a predetermined position.
1 more element
An electric motor comprising:
- a stator,
- a rotor including a rotor shaft having a locating groove formed therein,
- a thrust system mounted on the rotor shaft, the thrust system including an endshield disposed at an end of the stator and rotor and a sleeve bearing retained in the endshield, and
- a locator disposed in the groove for locating the thrust system in a predetermined position,
- the thrust system comprising a spacer between the bearing and locator, the spacer being sized and positioned to contact the endshield upon application to the shaft of a force tending to move the spacer toward the endshield to transfer the force to the endshield.
2 more elements
Dependencies are inferred from the claim text.