| 摘要 |
<p>An oil cooler (1) includes a heat exchanger core (3) having a plurality of plates (2) laid one upon another to define each of an oil passage through which oil flows and a coolant passage through which coolant flows, between the plates. An uppermost plate (2) of the plates (2) has a core coolant inlet (7) and a core coolant outlet (8). The core coolant inlet (7) and the core coolant outlet (8) are communicated with the coolant passage. A flow passage control valve (4) is disposed on an uppermost part of the heat exchanger core (3) and has a first coolant introduction opening (15) through which coolant at a relatively high temperature is supplied and a second coolant introduction opening (14) through which coolant at a relatively low temperature is supplied. The first coolant introduction opening (15) and the second coolant introduction opening (14) are changed over to be communicated with the core coolant inlet (7).</p> |
