Driveline component having oil distributor sleeve

Patent metadata

Field	Value
Publication number	US-10876622-B2
Application number	US-201816035984-A
Country	US
Kind code	B2
Filing date	Jul 16, 2018
Priority date	Jul 16, 2018
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

A driveline component that includes a shaft, a friction clutch, a lubricant passage and an oil distributor sleeve. The friction clutch includes a hub with a hub portion and a plate mount. The oil distributor sleeve is received on the plate mount so that a lubricant chamber is disposed radially between the oil distributor sleeve and the hub portion. The lubricant passage is disposed between the shaft and the lubricant chamber and has a passage outlet that intersects the lubricant chamber. The oil distribution sleeve receives lubrication discharged from the passage outlet and directs the received lubrication to apertures formed through the plate mount.

First claim

What is claimed is:

1. A driveline component comprising:
a shaft having an outer circumferential surface;
a friction clutch having a clutch hub, a clutch basket, a plurality of first clutch plates, and a plurality of second clutch plates, the clutch hub having a hub portion, which is non-rotatably coupled to the shaft, a first plate mount, and a radial wall that couples the hub portion to the first plate mount such that the first plate mount is spaced radially outward from the hub portion, the first plate mount having a radially inner surface, the clutch basket having a second plate mount that is disposed concentrically about first plate mount, the first clutch plates being axially slidably but non-rotatably coupled to the first plate mount, the second clutch plates being axially slidably but non-rotatably coupled to the second plate mount, the second clutch plates being interleaved with the first clutch plates;
an oil distributor sleeve mounted to the radially inner surface of the first plate mount and extending along a longitudinal axis of the shaft such that the oil distributor sleeve is disposed about a portion of the hub portion, wherein a lubricant chamber is defined between the hub portion and the oil distributor sleeve; and
a lubricant passage disposed between the shaft and the lubricant chamber, the lubricant passage having a passage outlet that intersects the lubricant chamber;
wherein the oil distributor sleeve diverges radially outwardly from the hub portion with increasing distance along the longitudinal axis from the passage outlet of the lubricant passage in a direction toward the radial wall.

2. The driveline component of claim 1 , wherein at least a portion of an inside circumferential surface of the oil distributor sleeve is frusto-conically shaped.

3. The driveline component of claim 1 , further comprising a clutch sleeve that is received onto the shaft.

4. The driveline component of claim 3 , wherein the clutch sleeve is spaced axially apart from the hub portion of the clutch hub to form the lubricant passage.

5. The driveline component of claim 1 , wherein the oil distributor sleeve is snap-fit to the radially inner surface of the plate mount.

6. The driveline component of claim 1 , wherein the oil distributor sleeve has a sleeve body and a plurality of oil distribution apertures are formed through the sleeve body.

7. The driveline component of claim 6 , wherein a plurality of circumferentially extending channels are formed about an exterior surface of the sleeve body, each of the channels being in fluid communication with at least one of the oil distribution apertures.

8. The driveline component of claim 7 , wherein the oil distributor sleeve further comprises a plurality of longitudinally extending ribs that are disposed about an interior surface of the sleeve body, each of the longitudinally extending ribs being adjacent a circumferential end of at least one of the oil distribution apertures.

9. The driveline component of claim 8 , wherein the oil distribution apertures comprise circumferentially extending slots.

10. A driveline component comprising:
a housing;
a first shaft supported in the housing for rotation about a first axis;
a second shaft supported in the housing for rotation about a second axis;
a friction clutch having a clutch hub, a clutch basket, a plurality of first clutch plates, and a plurality of second clutch plates, the clutch hub having a hub portion, which is non-rotatably coupled to the first shaft, a first plate mount, and a radial wall that couples the hub portion to the first plate mount such that the first plate mount is spaced radially outward from the hub portion, the first plate mount having a radially inner surface, the clutch basket having a second plate mount that is disposed concentrically about first plate mount, the first clutch plates being axially slidably but non-rotatably coupled to the first plate mount, the second clutch plates being axially slidably but non-rotatably coupled to the second plate mount, the second clutch plates being interleaved with the first clutch plates;
a drive element coupled to the clutch basket for rotation therewith;
a driven element coupled to the second shaft for common rotation;
an endless power transmitting element engaging the drive element and the driven element to transmit rotary power there between;
an oil distributor sleeve mounted to the radially inner surface of the first plate mount and extending along the first axis such that the oil distributor sleeve is disposed about a portion of the hub portion, wherein a lubricant chamber is defined between the hub portion and the oil distributor sleeve; and
a lubricant passage disposed between the first shaft and the lubricant chamber, the lubricant passage having a passage outlet that intersects the lubricant chamber;
wherein the oil distributor sleeve diverges radially outwardly from the hub portion with increasing distance along the first axis from the passage outlet of the lubricant passage in a direction toward the radial wall.

11. The driveline component of claim 10 , further comprising a clutch actuator having an actuator output member that is configured to translate along the first axis to selectively engage the first and second clutch plates to one another.

12. The driveline component of claim 11 , wherein the clutch actuator comprises a clutch sleeve and wherein the lubricant passage is disposed between the first shaft and the clutch sleeve.

13. The driveline component of claim 12 , wherein the clutch actuator further comprises a first ball-ramp cam and a second ball-ramp cam, wherein the first ball-ramp cam is non-rotatably coupled to the clutch sleeve.

14. The driveline component of claim 10 , wherein the oil distributor sleeve has a sleeve body and a plurality of oil distribution apertures are formed through the sleeve body.

15. The driveline component of claim 14 , wherein a plurality of circumferentially extending channels are formed about an exterior surface of the sleeve body, each of the channels being in fluid communication with at least one of the oil distribution apertures.

16. The driveline component of claim 15 , wherein the oil distributor sleeve further comprises a plurality of longitudinally extending ribs that are disposed about an interior surface of the sleeve body, each of the longitudinally extending ribs being adjacent a circumferential end of at least one of the oil distribution apertures.

17. The driveline component of claim 16 , wherein the oil distribution apertures comprise circumferentially extending slots.

18. The driveline component of claim 10 , wherein at least a portion of an inside circumferential surface of the oil distributor sleeve is frusto-conically shaped.

19. The driveline component of claim 12 , wherein the clutch sleeve is spaced axially apart from the hub portion of the clutch hub to form the lubricant passage.

Assignees

• Borgwarner Inc

Inventors

• Alexiou Arie
• Eldred Jason P
• Worcester Ian D
• Wang Hongtao
• Bedi Gurmeet Singh

Classifications

• F16H57/045 Primary

  Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case · CPC title

• F16H57/0473 Primary

  Friction devices, e.g. clutches or brakes · CPC title

• F16D13/74

  Features relating to lubrication · CPC title

• F16H57/043

  within rotary parts, e.g. axial channels or radial openings in shafts · CPC title

• F16D25/0638

  with more than two discs, e.g. multiple lamellae · CPC title