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US 10,594,191 B2Granted
Rotor endplate for electric machine
AssigneeFord Global Technologies, LLC
InventorsCyrille Goldstein, Joel Hetrick
Life of this patent
Estimating the term…
Abstract
An electric machine is provided. The electric machine may include a rotor disposed on a shaft and an endplate. The endplate may define a coolant capture ring. The coolant capture ring may have tapered side walls that extend from an outer portion of the endplate toward the shaft at a periphery thereof. The coolant capture ring may be configured to deflect coolant captured by the coolant capture ring and expelled by the shaft due to centrifugal forces associated with the rotation of the shaft.
Claims19
An electric machine comprising:
- a shaft;
- a rotor formed of stack of laminations disposed on the shaft, wherein each lamination defines a coolant passage aperture and is aligned to form a coolant passage extending along a length of the shaft;
- and
- an endplate in direct contact with the rotor and having an inner periphery that defines a coolant capture ring having tapered side walls, that extend from an outer portion of the endplate toward the shaft, configured to deflect coolant captured by the coolant capture ring and expelled by the shaft due to centrifugal force associated with rotation of the shaft, and wherein the coolant passage terminates at the tapered sidewalls.
1 more element
An electric machine comprising:
- a rotor formed of a stack of laminations disposed on a shaft, wherein each lamination defines a coolant passage aperture and is aligned to form a coolant passage extending along a length of the shaft;
- an endplate in direct contact with the rotor defining a coolant capture ring, having a tapered side wall, provided with a distal end, extending away from the rotor and from an outer portion of the endplate toward the shaft, at a periphery thereof;
- and
- at least one nozzle disposed within the endplate, wherein the coolant capture ring is configured to deflect coolant expelled by the nozzle along a length of the rotor.
1 more element
An electric machine comprising:
- a rotor formed of a stack of laminations disposed on a shaft, wherein each lamination defines a coolant passage aperture and is aligned to form a coolant passage extending along a length of the shaft;
- and
- an endplate in direct contact with the rotor and comprising:
- a coolant capture ring including tapered side walls extending from an outer periphery towards the shaft, and
- a centering plate extending from the inner periphery and defining a plurality of slots circumferentially offset from the inner periphery, wherein the coolant capture ring is configured to redirect fluid expelled by the shaft to the plurality of slots.
2 more elements
Dependencies are inferred from the claim text.