| 摘要 |
PROBLEM TO BE SOLVED: To increase the degrees of freedom regarding multi-directional air- volume distribution in a heat-exchanging ventilator, prevent outdoor air from invading at operation stoppage of the ventilator, make the constitution simple, and attain cost reduction. SOLUTION: A supply-air path 4 for letting air in a room, and an exhaust-air path 6 for discharging air to the outside are formed in a body casing 2. The path 4 and the path 6 are separately interpedently formed over the whole path; a part of the exhaust-air path and a part of the supply-air path are formed respectively of primary and secondary paths; and a heat-exchanger 1 is built in the ventilator, to conduct heat-exchange operation between the fluids flowing in the primary and the secondary paths. In the path 4, a fan 3 is provided to form a supply-air flow from an inlet end 26 to an outlet end 27. In the path 6, a fan 5 is placed to make an exhaust-air flow from an inlet end 24 to an outlet 25; an outlet part 15 of the path 4 is divided in two directions in the air-supply direction and in a direction orthogonal thereto; and a damper 7 is provided rotatably in the branching part of the outlet part 15 to regulate the opening-area of the two directions. |
