IP Library › Granted Patent US 12,263,700
Granted Patent B2
US 12,263,700 · App. 17/450,051 · Granted Apr 1, 2025

Systems for axle arm

Inventors: Nicola Tessaro (Arco, IT); Davide Deimichei (Arco, IT); Efrem Rusconi (Arco, IT); Gianluca Terrasi (Arco, IT)
Assignee: DANA ITALIA S.R.L.
B60B35/16B60B35/00B60B35/14F16C3/02F16N19/003B60B2900/561F16C2326/06
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Quick Facts
Patent No.
US 12,263,700
App. No.
17/450,051
Granted
Apr 1, 2025
Kind
B2
Abstract

Systems are provided for an axle arm including a lubricant reservoir and a driveshaft. In one example, system may include a lubricant reservoir of an axle arm comprising a fill line at an edge of a driveshaft, wherein a central axis of the lubricant reservoir is misaligned with a central axis of the driveshaft.

Claims (23)

1. A system, comprising:

a lubricant reservoir in an axle arm comprising a fill line at an edge of a driveshaft, wherein a central axis of the lubricant reservoir is misaligned with a central axis of the driveshaft, and wherein the lubricant reservoir is arranged in the axle arm between a first flange of a first end and a second flange of a second end opposite the first end.

2. The system of claim 1 , wherein the central axis of the driveshaft aligns with a central axis of the axle arm, and wherein the central axis of the driveshaft is below the central axis of the lubricant reservoir.

3. The system of claim 1 , wherein interior surfaces of the axle arm shape the lubricant reservoir.

4. The system of claim 1 , wherein a first dimension measured from a bottom surface of the axle arm to the central axis of the driveshaft is less than a second dimension measured from a top surface of the axle arm to the central axis of the driveshaft.

5. The system of claim 4 , wherein the first dimension is less than a diameter of the driveshaft.

6. The system of claim 1 , wherein a bottom distance measured from an outer perimeter of a bottom surface of the axle arm to the central axis of the driveshaft is less than a top distance measured from an outer perimeter of a top surface of the axle arm to the central axis of the driveshaft, and wherein the bottom surface and top surface shape the lubricant reservoir.

7. The system of claim 1 , wherein the edge of the driveshaft corresponds to a portion of the drive shaft nearest the bottom surface.

8. The system of claim 1 , wherein the fill line is below the central axis of the drive shaft, and wherein a diameter of a section of the axle arm comprising the lubricant reservoir is uniform.

9. An axle arm, comprising:

a driveshaft arranged and configured to rotate in a lubricant reservoir positioned within the axle arm, wherein a fill line of the lubricant reservoir contacts a bottom portion of the driveshaft, and wherein the lubricant reservoir changes in shape from a first end of the axle arm to a second end of the axle arm, the second end opposite the first end.

10. The axle arm of claim 9 , wherein the bottom portion is a bottommost portion of the driveshaft.

11. The axle arm of claim 9 , wherein a central axis of the lubricant reservoir is misaligned with a central axis of the driveshaft.

12. The axle arm of claim 11 , wherein a first dimension measuring a height of an air gap from the central axis of the driveshaft to a lower wall is less than a second dimension measuring a height of the air gap from the central axis of the driveshaft to an upper wall, and wherein the upper and lower walls define a portion of a perimeter of the lubricant reservoir.

13. The axle arm of claim 9 , wherein lubricant in the lubricant reservoir is oil.

14. A system, comprising:

an axle arm comprising an upper wall, a lower wall, a first lateral wall, and a second lateral wall;

a lubricant reservoir shaped by the upper wall, the lower wall, the first lateral wall, and the second lateral wall; and

a driveshaft configured to rotate within the lubricant reservoir, wherein a central axis of the driveshaft is aligned with a central axis of the axle arm and misaligned with a central axis of the lubricant reservoir.

15. The system of claim 14 , wherein the central axis of the driveshaft is closer to the lower wall than the upper wall.

16. The system of claim 14 , wherein the central axis of the lubricant reservoir is vertically above the central axis of the driveshaft.

17. The system of claim 14 , wherein the axle arm is arranged in an electric vehicle.

18. The system of claim 14 , wherein a fill line of the lubricant reservoir contacts only a perimeter of the driveshaft.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 5, 2021
From: TESSARO, NICOLA; DEIMICHEI, DAVIDE; RUSCONI, EFREM; TERRASI, GIANLUCA
To: DANA ITALIA S.R.L.
Reel/Frame 057708/0215 →
Continuity (1)
Related Publication 20230105951A1 · Apr 6, 2023
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