초록 ▼

A heat transfer system is disclosed in which heat is transferrable to a first primary user by means of a two-coil heat exchanger acting as a condenser which is in the high pressure path, while at the same time another two-coil heat exchanger used as a condenser is used to provide cooling to a record

A heat transfer system is disclosed in which heat is transferrable to a first primary user by means of a two-coil heat exchanger acting as a condenser which is in the high pressure path, while at the same time another two-coil heat exchanger used as a condenser is used to provide cooling to a record primary user. The system also includes a fan type heat exchanger, which acts as the condenser, when the first primary user does not need heating energy. The system is also operable to heat the second primary user whose heat exchanger acts as a condenser, connectible in series with the heat exchanger of the first primary user.

대표청구항 ▼

A heat transfer system comprising: first, second and third controllable heat exchangers, each having a primary coil through which refrigerant is adapted to flow with said first and second heat exchangers further including at least a secondary coil in heat transfer contact with said primary coil for

A heat transfer system comprising: first, second and third controllable heat exchangers, each having a primary coil through which refrigerant is adapted to flow with said first and second heat exchangers further including at least a secondary coil in heat transfer contact with said primary coil for providing a separate path for fluid to flow therein and said third exchanger includes operable means for circulating fluid about the primary coil of the third exchanger; a compressor having an inlet and an outlet for compressing gaseous refrigerant supplied thereto at its inlet and for providing compressed gaseous refrigerant at the outlet thereof; a two-state flow path reversing valve having first, second, third and fourth ports, said valve providing two separate flow paths between its first and fourth ports and its second and third ports, when being in a first of its two states and further providing two separate flow paths between its first and second ports and its third and fourth ports when being in its second state; expansion valve means for expanding liquid refrigerant supplied thereto to effectively reduce its pressure; first means for providing a refrigerant flow path between the third port of the path reversing valve and the compressor\s inlet, and between the compressor\s outlet and the first port through the primary coil of said first exchanger; second means for providing refrigerant flow path between said second and fourth ports through the primary coil of said second heat exchanger, said expansion valve means and the primary coil of said third heat exchanger connected thereby in series; and control means including manually controllable switches for controlling said system whereby when said path reversing valve is in said first state either said first and second heat exchangers are operable as a condenser and an evaporator respectively while said third heat exchanger is inoperative or said third and second heat exchangers operate as a condenser and an evaporator respectively while said first heat exchanger is inoperative and when said valve is in its second state said first and second heat exchangers are connected in series with at least one of them being operable as a condenser while said third heat exchanger is operable as an evaporator.