| 摘要 |
<p>An automotive air conditioning system has a refrigeration circuit which include a compressor (1), a condenser (2), an expansion valve (9) an evaporator (4), and an accumulator (5). Refrigerant from the compressor passes through the condenser, the expansion valve, the evaporator and the accumulator, in turn, and returns to an inlet of the compressor. A fan (6) for the evaporator controls an airflow in accordance with operation of a transfer switch (7). The expansion valve (9) comprises a orifice (903) and an actuator (93) to control the cross sectional area of the orifice. The actuator is electrically controlled in response to operation of the transfer switch.</p> |
