Hollow-shaft lubricating device, and transmission comprising a stationary feeding cannula
AssigneeNissan Motor Co., Ltd.
InventorsFrançois-Xavier VALLET, Flavien VILLIERS
Life of this patent
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Abstract
A hollow shaft lubricating system is provided for lubricating a transmission through a hollow shaft inside a transmission case of the transmission. The hollow shaft lubricating system includes a stationary feeding cannula that extends inside the hollow shaft towards specific lubrication points in the transmission. The hollow shaft lubricating system further includes an external lubrication circuit in fluid communication with an opening in the transmission case. The stationary feeding cannula has a cannula inlet that receives the oil from the external lubrication circuit through the opening in the transmission case.
Claims12
A hollow shaft lubricating system for lubricating a transmission through a hollow shaft disposed inside a case of the transmission, the hollow shaft lubricating system comprising:
- an external lubrication circuit in fluid communication with an opening in the case;
- and
- a stationary feeding cannula which extends inside the hollow shaft toward targeted lubrication points of the transmission,
- the cannula having an inlet for receiving oil from the external lubrication circuit through the opening in the case,
- the external lubrication circuit comprising a pump which circulates the oil contained in a lower part of the case of the transmission.
A transmission comprising:
- a case having an opening;
- a hollow shaft disposed in the case;
- a solid shaft that is concentrically disposed in the hollow shaft;
- and
- a hollow shaft lubricating system comprising:
- an external lubrication circuit in fluid communication with the opening in the case,
- a stationary feeding cannula which extends inside the hollow shaft toward targeted lubrication points of the transmission, the cannula having an inlet for receiving oil from an external lubrication circuit through the opening in the case, and
- the external lubrication circuit comprising a pump which circulates the oil contained in a lower part of the case.
Dependencies are inferred from the claim text.