Carrier oil feed channel lubricating system

• US 9,546,727 B2
• Filed: 01/27/2015
• Issued: 01/17/2017
• 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: Kruger, Caleb S., Steward, Scott L. Jr., Carmean, Daniel D., Swinehart, Edwin O. Jr.
• Primary Examiner(s): RIEGELMAN, MICHAEL A
• Application Number:
  US14/606,229
• Publication Number:
  US 20150219204A1
• Time in Patent Office: 721 Days
• Field of Search: 184/6.12
• 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 for a differential, comprising:

a first upstanding wall; and

a floor integrally formed with said first upstanding wall and a portion of an interior wall of a carrier, wherein said floor is perpendicular to said first upstanding wall and said interior wall of said carrier;

wherein said floor comprises a first portion angled at a first angle and a second portion angled at a second angle, wherein said first portion has a different angle than said second portion; and

a gap located between a top of said first upstanding wall and said interior wall of said carrier defining an open top channel, wherein said channel is parallel with said interior wall of said carrier and the length of said channel is equal to the length of said upstanding wall.

2. An oil feed channel lubricating system for a differential according to claim 1, wherein said channel is integrally formed on said interior wall of said carrier opposite a ring gear.

3. An oil feed channel lubricating system for a differential according to claim 1, wherein said channel is 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 for a differential according to claim 1, wherein said length of said upstanding wall is equal to the distance from an output opening in said carrier to a pinion bearing.

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

6. An oil feed channel lubricating system for a differential according to claim 1, wherein said second portion is located adjacent a pinion bearing.

7. An oil feed channel lubricating system for a differential according to claim 1, wherein said first angle of said first portion is between negative 1 to positive 10 degrees from horizontal with a rotational axis of a pinion gear.

8. An oil feed channel lubricating system for a differential according to claim 1, wherein said second angle of said second portion is between negative 1 to positive 15 degrees from horizontal with a rotation axis of a pinion gear.

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

10. An oil feel channel lubricating system for a differential according to claim 1, wherein said gap has a constant width along said length of said channel.

11. An oil feel channel lubricating system for a differential according to claim 1, wherein an end of said gap extends past the gear head of a pinion gear.