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US 12,044,304 B2Granted
Differential with lubrication ports
AssigneeDana Heavy Vehicle Systems Group, LLC
InventorsBrian V. Knapke, Ned W. Wright
Life of this patent
Estimating the term…
Abstract
Systems for a differential are provided. The differential includes two sets of pinion gears with an asymmetric split tooth profile. A case of the differential includes a plurality of lubrication ports which open adjacent to untoothed sections of one set of pinion gears and in a drive mode and an outboard axial load is exerted on the corresponding set of pinion gears.
Claims18
A differential comprising:
- a first pinion gear including a first untoothed section positioned between a first wider toothed section and a first narrower toothed section;
- a first side gear meshing with the first wider toothed section;
- a second pinion gear including a second untoothed section positioned between a second wider toothed section and a second narrower toothed section;
- a second side gear meshing with the second wider toothed section;
- and
- a case at least partially enclosing the first and second pinion gears and including a plurality of lubrication ports;
- wherein a first lubrication port included in the plurality of lubrication ports opens radially adjacent to the first untoothed section of the first pinion gear.
4 more elements
A limited slip differential comprising:
- a first pinion gear with asymmetrically arranged toothed and untoothed sections;
- a second pinion gear with asymmetrically arranged toothed and untoothed sections, wherein a portion of the toothed sections in the first and second pinion gears mesh with each other;
- a first side gear meshing with a portion of the toothed sections in the first pinion gear;
- a second side gear meshing with a portion of the toothed section in the second pinion gear;
- and
- a case at least partially enclosing the first and second pinion gears and including a plurality of lubrication ports that each open radially adjacent to the untoothed sections of the first pinion gear;
- wherein, during a drive state, an axial load on the second side gear is in an inboard direction and axial loads on the second pinion gear is in a direction extending outboard away from a narrowed toothed section.
4 more elements
Dependencies are inferred from the claim text.