| 摘要 |
PURPOSE:To improve starting performance of air-conditioning by making a variable capacity type compressor control to change over to start in constant volume operation under the maximum volume of the same or to start in usual automatic operation, in proportion to a relation in cabin temperature, outside air temperature and desired cabin temperature and so on. CONSTITUTION:A control device 10 is provided, to which respective outputs of temperature sensors 9, 10 that detect cabin temperature Tin and outside air temperature Tex, and of a temperature setter 12 that sets desired cabin temperature Tr are put in, on a cooling circuit 1 in which a compressor 2, a condenser 3, a receiver 4, an expansion valve 5 and an evaporator 6 are connected into a closed circuit by a piping 7. And, when Tin>T1 (the first standard temperature; about 40 deg.C) and Tex>T3 (standard outside air temperature; about 30 deg.C), or when T1<Tin<T2(<T1) and just after starting the cooling circuit or when (Tin-Tr)<Td (standard temperature difference) constant volume operation under the maximum volume of the compressor 2 is made to start. And at the time of (Tin-Tr)>Td, usual automatic control operation is made to start. |
