Systems for a cooling jacket in an electric motor
AssigneeDana Belgium N.V.
InventorsLouis LAMBOURG, Steven VANHEE
Life of this patent
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Abstract
Methods and systems are provided for a cooling jacket for an electric motor. In one example, a system may include a channel extending along a circumference of an inner surface of the cooling jacket between an inlet and an outlet of the cooling jacket. A cross-section of the channel may gradually change from the inlet to the outlet along the circumference in order to compensate an increase in coolant temperature by an increase in convective heat transfer such that cooling is balanced around a circumferential surface of the electric motor.
Claims20
A system for a cooling jacket of an electric motor, comprising:
- a channel extending along a circumference of an inner surface of the cooling jacket between an inlet and an outlet, a cross-section of the channel gradually changing from the inlet to the outlet along the circumference.
A system for a cylindrical cooling jacket coaxially surrounding an electric motor, comprising:
- an inlet for a cooling liquid;
- a plurality of outlets for the cooling liquid positioned diametrically opposite to the inlet;
- and
- a continuous channel disposed on a surface of the cooling jacket with a width of the channel decreasing in multiple increments between the inlet and the outlet(s) in at least one half of the cooling jacket.
A cooling system for an electric motor, comprising:
- a cylindrical cooling jacket including a continuous channel disposed on an inner surface meandering about interdigitated fingers projecting from sidewalls of the inner surface, the channel including a variable cross-section with the cross-section decreasing along each of a first half and a second half of the cooling jacket from a top of the cooling jacket to a bottom of the cooling jacket.
Dependencies are inferred from the claim text.