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Heat exchanging device

  • US 10,234,016 B2
  • Filed: 06/29/2016
  • Issued: 03/19/2019
  • Est. Priority Date: 08/06/2015
  • Status: Active Grant
First Claim
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1. A heat exchanging device mounted on a vehicle provided with an engine, a fluid transmitting device including a lock-up mechanism, and an automatic transmission connected to the engine through the fluid transmitting device, comprising:

  • a heat exchanger configured to perform heat exchange between first operating oil used in the engine and second operating oil used in the fluid transmitting device and the automatic transmission; and

    a heat exchanging amount decreasing unit configured to, when a temperature of the second operating oil is lower than a predetermined temperature at which it is allowed to engage the lock-up mechanism, decrease a flow amount of at least one of the first and second operating oil flowing in the heat exchanger as compared to a case in which the temperature of the second operating oil is not lower than the predetermined temperature.

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