Carrier Oil Feed Channel Lubricating System

• US 20150219204A1
• Filed: 01/27/2015
• Published: 08/06/2015
• Est. Priority Date: 01/31/2014
• Status: Active Grant

• Current Assignee: Dana Automotive Systems Group, LLC (Dana, Inc.)
• Original Assignee: Dana Automotive Systems Group, LLC (Dana, Inc.)
• Inventors: Steward, Scott L. Jr., Kruger, Caleb S., Carmean, Daniel D., Swinehart, Edwin O. Jr.
• Granted Patent: US 9,546,727 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F16H 57/0409 characterised by the problem to increase efficiency, e.g. by reducing splash losses
• CPC Class Codes: F16H 57/0424 Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes means for guiding lubricant into an axial channel of a shaft F16H57/0426
• CPC Class Codes: F16H 57/0457 Splash lubrication characterised by the problem reducing losses, e.g. splash losses F16H57/0409
• CPC Class Codes: F16H 57/0483 Axle or inter-axle differentials

Abstract

An oil feed channel lubricating system including a first upstanding wall, a floor and a portion of an interior wall of a carrier. The channel has a first portion angled at a first angle and a second portion angled at a second angle. The first portion preferably has a shallower angle than the second portion. A gap is located between a top of the first upstanding wall and the interior wall of the carrier.

Claims

1. An oil feed channel lubricating system, comprising:

a first upstanding wall;

a floor;

a portion of an interior wall of a carrier, wherein a channel comprises a first portion angled at a first angle and a second portion angled at a second angle, wherein said first portion has a shallower angle than said second portion; and

a gap located between a top of said first upstanding wall and said interior wall of said carrier.

2. An oil feed channel lubricating system according to claim 1, wherein said channel is located on an interior wall opposite a ring gear.

3. An oil feed channel lubricating system according to claim 1, wherein said channel is substantially above a rotational axis of a ring gear and coplanar with a rotational axis of a pinion gear.

4. An oil feed channel lubricating system according to claim 1, wherein said gap extends the length of said upstanding wall.

5. An oil feed channel lubricating system according to claim 1, wherein the length of said upstanding wall is substantially equal to the length of a front half of said carrier.

6. An oil feed channel lubricating system according to claim 1, wherein said first portion of said channel is located adjacent an axle housing opening.

7. An oil feed channel lubricating system according to claim 1, wherein said second portion is located adjacent a shaft bearing.

8. An oil feed channel lubricating system according to claim 1, wherein said first angle is shallower than said second angle.

9. An oil feed channel lubricating system according to claim 1, wherein said first angle of said first portion is between negative 1 to 10 degrees.

10. An oil feed channel lubricating system according to claim 1, wherein said second angle of said second portion is between negative 1 to 15 degrees.

11. An oil feed channel lubricating system according to claim 1, wherein said second portion comprises an outlet located between first and second pinion shaft bearings.