Lubrication system for transfer case
AssigneeBorgWarner Inc.
InventorJesse Jongebloed
Life of this patent
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Abstract
A lubrication system (200) for a transfer case (120) includes a shaft (210) having a lubricant supply port (214); a control collar (230) disposed on the shaft (210), the control collar (230) having at least one lubrication path (234); and an actuator (250) for moving the control collar (230) between a first position in which lubricant is able to flow from the lubricant supply port (214) through the at least one lubrication path (234) and a second position in which lubricant is not able to flow from the lubricant supply port (214) through the at least one lubrication path (234).
Claims15
A lubrication system (200) for a transfer case (120), comprising:
- a shaft (210) having a lubricant supply port (214);
- a control collar (230) disposed on the shaft (210), the control collar (230) having at least one lubrication path (234);
- and
- an actuator (250) for moving the control collar (230) between a first position in which a lubricant (204) is able to flow from the lubricant supply port (214) through the at least one lubrication path (234) and a second position in which the lubricant (204) is not able to flow from the lubricant supply port (214) through the at least one lubrication path (234).
A transfer case (120, 300) for a vehicle, comprising:
- a primary shaft assembly having an input shaft (304) and a primary output shaft (306), the primary shaft assembly having a hollow bore (344), at least one input port (346) in communication with the hollow bore (344), and at least one outlet port (348) in communication with the hollow bore (344);
- a secondary output shaft (308);
- a clutch (352) that is operable to transfer power from the primary shaft assembly to the secondary output shaft (308) when the clutch (352) is in an engaged position;
- a pump (340) that is disposed on the primary shaft assembly for supplying a lubricant to the hollow bore (344) via the at least one input port (346);
- a control collar (360) disposed on the primary shaft assembly, the control collar (360) having at least one lubrication path (364);
- a selector fork (370) for moving the control collar (360) between a first position in which a lubricant (204) is able to flow from the at least one outlet port (348) to the clutch (352) through the at least one lubrication path (364) and a second position in which the lubricant (204) is not able to flow from the at least one outlet port (348) to the clutch (352) through the at least one lubrication path (364);
- and
- a barrel cam (332) that is operable to cause movement of the selector fork (370).
Dependencies are inferred from the claim text.