| 摘要 |
PROBLEM TO BE SOLVED: To adjust the temperature of oil without allowing the situation of mixture of gas to change.SOLUTION: A temperature adjustment apparatus 1 includes: a pump 11; a gas-liquid separation part 12 for separating between gas and liquid contained in oil; a temperature adjustment part 13 for adjusting a temperature of oil from which gas has been separated; a cylinder part 14 for absorbing a thermal expansion amount of the oil after the temperature is adjusted; and a transaxle 15. The gas-liquid separation part 12 includes: a spiral-flow shaping part 22, having a channel 21 allowing the oil to flow, for forming a spiral rotation in the oil flowing the channel 21; a surface tension part 23, disposed downstream of the spiral-flow shaping part 22 and having a peak portion 23a and a trough portion 23b both in a wall portion, for collecting gas at the center of a spiral rotation by means of surface tension of the wall portion when the spirally rotating oil passes through; and a supply part, disposed downstream of the surface tension part 23, for supplying the temperature adjustment part 13 with the gas-separated oil on outer circumferential side of the spiral rotation.SELECTED DRAWING: Figure 2 |
