| 摘要 |
PURPOSE: To provide an oil circuit relief device for an engine including a hydraulic relief valve and a temperature sensitive relief valve, capable of executing oil relief (discharge) with the aiming pressure of oil regardless of whether the temperature of the oil is high or low, and simplifying its configuration.CONSTITUTION: An oil circuit relief valve includes an oil pump 9, an upstream flow path 61 provided ranging from a discharge part side of the oil pump 9 to an engine E, a hydraulic relief valve A of which a valve element is moved with pressure of oil, to perform oil relief, and a temperature sensitive relief valve B which is opened/closed in a stepless manner when sensing a temperature of the oil, to perform oil relief. In the upstream flow path 61, the hydraulic relief valve A and the temperature sensitive relief valve B are arranged in parallel to each other.SELECTED DRAWING: Figure 1 |
