| 摘要 |
Solvent vapour cleaning apparatus having a container for solvent in which solvent is heated to effect vaporisation thereof during an operation mode of the apparatus is disclosed, which includes cooler means (3) for effecting cooling of the solvent in said container during a shut-down mode of the apparatus following heating of the solvent during the operating mode. In a preferred embodiment, heating of the solvent is effected by means of a heat pump (1, 3, 4, 5, 7, 8, 9), cooling of the solvent in the shut-down mode being effected by converting heater means (3) of the heat pump into the cooler means (3) by changing the flow of heat transfer medium within the pump. This dual functioning of the heater means (3) of the heat pump as cooler means (3) during shut-down may be effected using values (2, 6, 10, 11) which change the flow path of the heat transfer medium. |
