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US 2016/0261173 A1Published application
Arrangement for the liquid cooling of an electric motor generator unit
AssigneeDeere & Company
InventorsRAINER GUGEL, NORBERT FRITZ, DAVID MUELLER
Life of this patent
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Abstract
A system is provided for liquid cooling of an electric motor generator unit. The electric motor generator unit includes a magnetic air gap running between a stator and a rotor, wherein for the cooling of the electric motor generator unit, the air gap is acted on with cooling liquid supplied from the outside. A control device adapts the pressure or the volume flow of the supplied cooling liquid as a function of a determined actual value of an operating temperature variable of the electric motor generator unit.
Claims7
A liquid cooling system, comprising:
- an electric motor generator unit including a stator and a rotor;
- an air gap for cooling the electric motor generator unit, the air gap defined between the stator and the rotor, where the air gap is configured to receive a cooling liquid supplied from a source located outside of the electric motor generator unit;
- a temperature sensor for detecting an operating temperature variable;
- and
- a control device operably controlling a pressure or flow of the supplied cooling liquid from the source as a function of a determined actual value of the operating temperature variable of the electric motor generator unit.
2 more elements
Dependencies are inferred from the claim text.