| 摘要 |
<p>A heat pump cycle equipped with: an operating mode switching unit (100a) that switches between a series operating mode, wherein refrigerant flowing from a heat radiator (12) flows through an outdoor heat exchanger (15) and then flows through an evaporator (20), and a parallel operating mode, wherein the refrigerant flowing from the heat radiator flows to both the outdoor heat exchanger and the evaporator; a pressure adjustment unit (44) that adjusts the pressure of the refrigerant passing through the evaporator; and an operating state switching unit (100b) that switches the operating state of the pressure adjustment unit between a function implementation state, wherein a constant pressure adjustment function is implemented to maintain the pressure of the refrigerant passing through the evaporator at a prescribed pressure setting, and a function suspension state, wherein the constant pressure adjustment function is not implemented. The operating state switching unit switches the operating state of the pressure adjustment unit to the function implementation state during the parallel operation mode, and switches the operating state of the pressure adjustment unit to the function suspension state during the series operation mode.</p> |
