Structure for an electric machine of an aircraft
AssigneeRolls-Royce Deutschland Ltd & Co KG
InventorDaniel MERZ
Life of this patent
Estimating the term…
Abstract
A structure for an electric machine includes a stator and a housing. The structure has a high-temperature torque transfer capability denoting a maximum transferrable torque between the stator and the housing at a first, higher temperature, and a low-temperature torque transfer capability denoting a maximum transferrable torque between the stator and the housing at a second, lower temperature. A ratio of the high-temperature torque transfer capability divided by the low-temperature torque transfer capability is greater than or equal to 1.2.
Claims20
A structure for an electric machine, the structure comprising:
- a stator;
- and
- a housing,
- wherein the structure has a high-temperature torque transfer capability denoting a maximum transferrable torque between the stator and the housing at a first, higher temperature, and a low-temperature torque transfer capability denoting a maximum transferrable torque between the stator and the housing at a second, lower temperature, and
- wherein a ratio of the high-temperature torque transfer capability divided by the low-temperature torque transfer capability is greater than or equal to 1.2.
A structure for an electric machine, the structure comprising:
- a stator;
- and
- a housing,
- wherein the structure has a high-temperature torque transfer capability denoting a maximum transferrable torque between the stator and the housing at a first, higher temperature, and a low-temperature torque transfer capability denoting a maximum transferrable torque between the stator and the housing at a second, lower temperature,
- wherein a ratio of the high-temperature torque transfer capability divided by the low-temperature torque transfer capability is greater than or equal to 1.2, and
- wherein the first temperature is 20° ° C., and the second temperature is −45° C.
A structure for an electric machine, the structure comprising:
- a stator;
- and
- a housing,
- wherein the structure has a high-temperature torque transfer capability denoting a maximum transferrable torque between the stator and the housing at a first, higher temperature, and a low-temperature torque transfer capability denoting a maximum transferrable torque between the stator and the housing at a second, lower temperature,
- wherein a ratio of the high-temperature torque transfer capability divided by the low-temperature torque transfer capability is greater than or equal to 1.5, and
- wherein the first temperature is 70° C., and the second temperature is 20° C.
Dependencies are inferred from the claim text.