| 摘要 |
PURPOSE:To spare it without enlarging a duct more than it is necessary in such a way that in an air conditioning heater for automobile or another, movable valves for adjusting air flow which passes through a penetrating hole for exothermic material which is juxtaposed with a blast duct are installed on the upstream side and on the downstream side. CONSTITUTION:Right after start-up, when cooling water temperature is low, and calefaction cannot be done, at the same time as switches 16, 17 are closed, and electric conduction is done to exothermic material 2, then movable valves 4, 5 are set to positions (A) and (A'), and blast is initiated. Thus, full rate of blasted air is passed through a flow path 3a via a penetrating hole 2a, heated and fed through a flow path 3b out of a blow-out grille 13. This hot air temperature can be adjusted in such a way that turning angles Q1, Q2 of movable valves 4, 5 are changed through a link, etc. to be operated by a driver. In addition, in case where feeding of outer air only, or rise in the cooling water temperature, or when cooling is needed, the movable valves 4, 5 are set to B, B' positions, thereby even if a duct 3 is not enlarged, there is no event to have larger resistance to the blast. |
