PROBLEM TO BE SOLVED: To prevent damage caused by freezing when a cooling fluid circulation circuit is connected to an engine cooling circuit so as to enable shut-off.SOLUTION: An engine cooling device for a vehicle includes: a circulation circuit A12 for circulating cooling fluid to an engine 16 and a radiator 20; a reserve tank 24 connected to the circulation circuit A12 and storing the cooling fluid to absorb pressure change of the circulation circuit A12; at least one circulation circuit B14 for circulating the cooling fluid to an apparatus mounted to the vehicle; a two-way valve 30 and an actuator for the two-way valve for selectively switching to either of a communication state where the circulation circuit A12 and the circulation circuit B14 are communicated with each other and a shut-off state; and a control section for controlling the actuator for the two-way valve to obtain the communication state when an ignition switch is turned off.SELECTED DRAWING: Figure 1

    【課題】エンジン冷却回路に対して遮断可能に接続された冷却液循環回路を有する場合の凍結による破損を防止することを目的とする。【解決手段】エンジン16とラジエタ20とに冷却液を循環させるための循環回路A12と、循環回路A12に接続されて循環回路A12の圧力変化を吸収するために冷却液を貯留するリザーブタンク24と、車両に搭載された機器に冷却液を循環させるための少なくとも1以上の循環回路B14と、循環回路A12と循環回路B14とを連通した連通状態及び遮断状態の何れかの状態に選択的に切り替える2方弁30並びに2方弁用アクチュエータと、イグニッションスイッチがオフされた場合に、連通状態になるよう2方弁用アクチュエータを制御する制御部と、を備える。【選択図】図1


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    Title :

    ENGINE COOLING DEVICE FOR VEHICLE


    Additional title:

    車両用機関冷却装置


    Contributors:

    Publication date :

    2017-06-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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