| 摘要 |
<p>A hydraulic oil cooler connected to a hydraulic circuit for controlling a hydraulic apparatus and cooling hydraulic oil whose temperature is raised to a high level by the use of the hydraulic apparatus. The hydraulic oil cooler (1A) has a heat radiation section (11) connected to it, and the heat radiation section (11) is formed by connecting conduits arranged side by side between an entrance chamber (4) that has an introduction opening (41) for the hydraulic oil sent under pressure from the hydraulic apparatus and an exit chamber (6) that has a delivery opening (52) for the hydraulic oil. A cushioning chamber (8) having a gas containing section (81) is communicatingly placed in the entrance chamber (4), and this enables pulsation and sharp pressure rise of the hydraulic oil introduced into the entrance chamber (4) to be absorbed by a cushioning effect of gas contained in the gas containing chamber (81). Since pulsation and abnormally high pressure of return hydraulic oil introduced into the hydraulic oil cooler (1A) are prevented, the oil can be stably cooled.</p> |
