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US 6,439,037 B1Granted
Dynamometer having improved sensing configuration
OwnerSeverino D'Angeloinventor
Life of this patent
Estimating the term…
Abstract
A dynamometer apparatus having an inside-out motor and a measurement loop which is defined by a load cell. The inside-out motor includes a generally hollow stator shaft through which the motor power cables are festooned. A first set of bearings, located within the measurement loop, support the rotor of the inside-out motor for rotation on the stator shaft. The stator shaft is independently supported on a base structure by a second set of bearings, with the second set of bearings supporting the full weight of the inside-out motor.
Claims19
A dynamometer apparatus comprising:
- an inside-out motor having a stator, a first set of bearings and a rotor, the stator having a stator shaft that extends through the rotor, the stator shaft including a generally hollow cavity, the first set of bearings coupled to the stator shaft and supporting the rotor for rotation about the stator shaft;
- a roller coupled for rotation with the rotor;
- a measurement loop established by a load cell operatively coupled to the stator shaft, the first set of bearings being within the measurement loop;
- a controller for controlling the inside-out motor;
- a plurality of wires coupling the controller and the stator, the plurality of wires coupled to the stator at a first end and extending out of the hollow cavity;
- a base structure;
- and
- a second set of bearings coupled to the base structure and the stator shaft, the second set of bearings supporting the stator shaft for rotation about a stator axis.
5 more elements
A dynamometer comprising:
- a base structure;
- a stator having a stator shaft, the stator shaft having a generally hollow cavity;
- a rotor;
- a first set of bearings coupled to the stator shaft and the rotor, the first set of bearings supporting the rotor for rotation about the stator;
- a second set of bearings coupled to the stator shaft and the base structure, the second set of bearings supporting the stator for rotation about a stator axis;
- a measurement loop having a load cell operatively coupled to the stator shaft;
- a controller for controlling a magnetic field produced by the stator;
- and
- a plurality of wires coupling the controller and the stator, the plurality of wires coupled to the stator at a first end and extending outwardly from the hollow cavity in the stator shaft.
6 more elements
A dynamometer comprising:
- an inside-out motor having a stator, a first set of bearings and a rotor, the stator having a stator shaft that extends through the rotor, the stator shaft including a generally hollow cavity disposed along a longitudinal axis of the stator shaft, the first set of bearings coupled to the stator shaft and supporting the rotor for rotation about the stator shaft;
- a roller circumferentially disposed about the rotor, the roller being coupled for rotation with the rotor about the stator shaft;
- a controller for controlling the inside-out motor;
- at least one control wire coupling the inside-out motor and the controller, the at least one control wire being coupled to the stator at a first end and extending out of the hollow cavity;
- a base structure;
- and
- a second set of bearings, the second set of bearings coupled to the base structure and supporting the stator shaft for rotation on the base structure.
4 more elements
Dependencies are inferred from the claim text.