Granted Patent B2

US 12,614,952 · App. 18/278,533 · Granted Apr 28, 2026

Inventors: Elias Bartos (Huddinge, SE); Ove Sponton (Västerljung, SE); Håkan Settersjö (Huddinge, SE); Usman Afridi (Södertälje, SE)

Assignee: Traton AB

H02K9/19H02K9/193H02K1/2706H02K5/203H02K7/006

Abstract

Claims (80)

1 . An electric rotating machine comprising:

a stator;

a rotor rotatable about an axis of rotation in relation to the stator;

a rotor compartment holding the rotor;

a fluid system for cooling the stator; and

a fluid-guiding member having a front and a back,

wherein the fluid-guiding member comprises a guide for guiding a fluid,

wherein the guide extends from the front of the fluid-guiding member toward the back of the fluid-guiding member,

wherein the guide is immovable in relation to the stator, and

wherein the guide is configured to guide a fluid from the front of the fluid-guiding member via a peripheral opening to the back of the fluid-guiding member upon rotation of the rotor to remove a fluid from the rotor compartment.

2 . An electric rotating machine according to claim 1 ,

wherein the electric rotating machine comprises a gable unit immovable in relation to the stator,

wherein the back of the fluid-guiding member faces the gable unit, and

wherein the front of the fluid-guiding member faces away from the gable unit.

3 . An electric rotating machine according to claim 2 ,

wherein a drain space is formed between the gable unit and the back of the fluid-guiding member, and

wherein the drain space is configured to drain a fluid away from the guide.

4 . An electric rotating machine according to claim 2 , wherein the fluid-guiding member is located between the gable unit and the rotor.

5 . An electric rotating machine according to claim 1 , wherein the guide extends from the front of the fluid-guiding member to the back of the fluid-guiding member.

6 . An electric rotating machine according to claim 1 , wherein the guide comprises one or more sloping surfaces for guiding a fluid.

7 . An electric rotating machine according to claim 6 , wherein the guide is configured to guide a fluid from the front of the fluid-guiding member to the back of the fluid-guiding member on the one or more sloping surfaces upon rotation of the rotor to remove a fluid from the rotor compartment.

8 . An electric rotating machine according to claim 6 , wherein one or more of the one or more sloping surfaces is/are concave.

9 . An electric rotating machine according to claim 6 , wherein the guide comprises two opposing sloping surfaces.

10 . An electric rotating machine according to claim 9 ,

wherein the guide comprises an apex pointing in a direction toward the back of the fluid-guiding member, and

wherein the two opposing sloping surfaces are joined in the apex.

11 . An electric rotating machine according to claim 9 ,

wherein the fluid-guiding member has a periphery surrounding the axis of rotation, and

wherein the guide adjoins the periphery of the fluid-guiding member at the front of the fluid-guiding member.

12 . An electric rotating machine according to claim 11 , wherein the peripheral opening is formed in the fluid-guiding member between the front of the fluid-guiding member and the back of the fluid-guiding member, and wherein the guide enters the peripheral opening.

13 . An electric rotating machine according to claim 11 , wherein the periphery of the fluid-guiding member is annular.

14 . An electric rotating machine according to claim 11 ,

wherein the periphery of the fluid-guiding member comprises a peripheral path at the front of the fluid-guiding member, and

wherein the peripheral path is configured to guide a fluid upon rotation of the rotor.

15 . An electric rotating machine according to claim 14 ,

wherein the guide adjoins the peripheral path.

16 . An electric rotating machine according to claim 11 ,

wherein the periphery of the fluid-guiding member comprises a wall at the front of the fluid-guiding member,

wherein the wall comprises an inner surface facing the axis of the rotation, and

wherein the inner surface of the wall is configured to receive a fluid upon rotation of the rotor.

17 . An electric rotating machine according to claim 11 ,

wherein the guide comprises one or more ramps, and

wherein at the front of the fluid-guiding member the periphery of the fluid-guiding member and each one of one or more of the one or more sloping surfaces are joined via the one or more ramps.

18 . An electric rotating machine according to claim 17 , wherein the ramp is configured to guide a fluid from the periphery of the fluid-guiding member at the front of the fluid-guiding member to one of the one or more sloping surfaces upon rotation of the rotor.

19 . An electric rotating machine according to claim 1 , wherein the guide comprises one or more sloping surfaces for guiding a fluid, wherein the one or more sloping surfaces extends from the front of the fluid-guiding member toward the back of the fluid-guiding member.

20 . An electric rotating machine according to claim 19 , wherein the ramp is configured to guide a fluid from the periphery of the fluid-guiding member at the front of the fluid-guiding member to one of the one or more sloping surfaces upon rotation of the rotor.

21 . A method for removing a fluid from a rotor compartment holding a rotor of an electric rotating machine having a stator, wherein the fluid originates from a fluid system for cooling one or more of the rotor and stator, wherein the electric rotating machine comprises:

the stator;

the rotor rotatable about an axis of rotation in relation to the stator;

the rotor compartment;

the fluid system for cooling the stator; and

a fluid-guiding member having a front and a back,

wherein the fluid-guiding member comprises a guide for guiding a fluid, and

wherein the guide extends from the front of the fluid-guiding member toward the back of the fluid-guiding member,

wherein the guide is immovable in relation to the stator, and

wherein the method comprises:

guiding a fluid from the front of the fluid-guiding member via a peripheral opening to the back of the fluid-guiding member by way of the guide and upon rotation of the rotor to remove a fluid from the rotor compartment.

22 . A vehicle comprising one or more electric rotating machines, wherein said one or more electric machines comprises

a stator;

a rotor rotatable about an axis of rotation in relation to the stator;

a rotor compartment holding the rotor;

a fluid system for cooling the stator; and

a fluid-guiding member having a front and a back,

wherein the fluid-guiding member comprises a guide for guiding a fluid,

wherein the guide extends from the front of the fluid-guiding member toward the back of the fluid-guiding member,

wherein the guide is immovable in relation to the stator, and

wherein the guide is configured to guide a fluid from the front of the fluid-guiding member via a peripheral opening to the back of the fluid-guiding member upon rotation of the rotor to remove a fluid from the rotor compartment.

23 . An electric rotating machine comprising:

a stator;

a rotor rotatable about an axis of rotation in relation to the stator;

a rotor compartment holding the rotor;

a fluid system for cooling one or more of the rotor and stator; and

a fluid-guiding member having a front and a back,

wherein the front of the fluid-guiding member faces the rotor compartment while the back of the fluid-guiding member faces away from the rotor compartment,

wherein the fluid-guiding member has a periphery surrounding the axis of rotation,

wherein the fluid-guiding member comprises a guide for guiding a fluid, wherein the guide extends from the front of the fluid-guiding member toward the back of the fluid-guiding member, wherein the guide is configured to guide a fluid from the front of the fluid-guiding member to the back of the fluid-guiding member upon rotation of the rotor to remove a fluid from the rotor compartment,

wherein the guide comprises two opposing sloping surfaces for guiding a fluid,

wherein the guide adjoins the periphery of the fluid-guiding member at the front of the fluid-guiding member,

wherein the guide comprises one or more ramps, and

wherein at the front of the fluid-guiding member the periphery of the fluid-guiding member and each one of one or more of the one or more sloping surfaces are joined via the one or more ramps.

Assignments (2)

Priority Claims (1)

Continuity (1)

References Cited (47)