| 摘要 |
PURPOSE:To improve the safety of controlling a coolant circulating passage by connecting a manifold with a coolant tank through a pressure regulator via a bypass circuit fed through a throttle mechanism between the primary and the secondary manifolds. CONSTITUTION:A bypass conduit 22 fed through a throttle unit 21 from the primary manifold 6 to the secondary manifold 7 is provided, and connected to a bypass conduit 24 fed via a pressure regulating valve 23 from the secondary manifold 7 to a coolant tank 1. Then, the coolant is obtained at the prescribed flow rate at any time, the pressure in the secondary manifold is controlled to the prescribed value to fall the pressure of the coolant circulating passage within the prescribed range to improve the safety of controlling. |
