| 摘要 |
<p>An inter-axle differential assembly 10 having a lubrication pump 50 is provided. The pump 50 is disposed between the input and output shafts 14, 30 of the differential within a bore defined by a side gear 20, 44 coupled to or integral with the output shaft 30. The pump 50 includes a housing 56 that defines first and second ports 60, 62 and includes an arcuate groove 165 in a radially outer surface. A pin 164 extends radially inwardly from the side gear 20, 44 and is received within the groove 165. The groove 165 and pin 164 cooperate to enable rotation of the entire pump 50 relative to the side gear 20, 44 and to thereby exchange the positions of the two ports 60, 62. In this manner, the assembly provides a reversible pump that provides lubricant only during relative rotation between the input and output shafts 14, 30 of the differential 10. <IMAGE></p> |
