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GEAR DEVICE AND VEHICLE HAVING SAME MOUNTED THEREON

  • US 20140190428A1
  • Filed: 05/10/2012
  • Published: 07/10/2014
  • Est. Priority Date: 05/19/2011
  • Status: Active Grant
First Claim
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1. A gear device which adjusts a temperature of lubricating oil by supplying the lubricating oil from a lower part of an enclosure of the gear device into a heat exchanger by means of a circulation pump and causing the lubricating oil and cooling water for an internal combustion engine to exchange heat with each other in the heat exchanger, comprising:

  • a level of the lubricating oil retained in the lower part when the circulation pump is stopped is defined as a highest oil level, while the level of the lubricating oil retained in the lower part when an amount of the lubricating oil pumped up by the circulation pump is maximum is defined as a lowest oil level,the heat exchanger is disposed at a position outside the enclosure and higher than the highest oil level, andthe gear device includes a control device which controls the amount of the oil to be pumped up by the lubricating pump to adjust a height of the level of the oil which varies between the highest oil level and the lowest oil level.

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