| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling device having a simple structure including a flow rate adjustment valve for controlling a water conduction state at each of the passages in a cooling water circuit of an engine constituted by a plurality of passages.SOLUTION: To enable a water conduction state in a plurality of passages to be independently controlled while restricting a large-formation of element at one flow rate adjustment valve by a method in which a partial flow passage chamber 15 defined by a plate-like wall 16 is arranged in a rotor 12 of the flow rate adjustment valve connected to a plurality of passages different to each other in a water conduction scene at both upstream side and downstream side.SELECTED DRAWING: Figure 4 |
