Thermally powered heat transfer systems utilizing sequential displacement

A thermally powered heat transfer system comprising:

• two compressors each compressor including a high temperature and a low temperature chamber with a flexible movable diaphragm separating the two chambers;
• a high temperature heat transfer loop for each compressor, each high temperature heat transfer loop including a refrigerant, an evaporator, a source of heat for the evaporator, a condenser, a heat sink for the condenser, a high temperature chamber of a compressor, and valve means for controlling flow of the refrigerant through the loop, the condenser of one of the high temperature loops being the source of heat for the evaporator of the other;
• a low temperature heat transfer loop for each compressor;
• a low temperature heat transfer loop including a refrigerant, an evaporator, a source of heat for the evaporator, a condenser, a heat sink for the condenser, a low temperature chamber of a compressor, and valve means for controlling the flow of the refrigerant through the low temperature loop;
• and
• control means for controlling the valve means of the heat transfer loops of the system.

A thermally powered heat transfer system comprising:

• a first and a second compressor, each compressor being divided by a flexible diaphragm into a high temperature and a low temperature chamber;
• a first and a second high temperature heat transfer loop, each such loop including a refrigerant, an evaporator, a source of heat for the evaporator, a condenser, a heat sink for for the condenser, a high temperature chamber of a compressor, and a means for controlling the flow of refrigerant through the loop, the first high temperature loop including the high temperature chamber of the first compressor and the second high temperature loop including the high temperature chamber of the second compressor, the condenser of the first high temperature loop and evaporator of the second higher temperature loop being combined so that the refrigerant of the second high temperature loop is the heat sink for the condenser of the first high temperature loop;
• a third low temperature heat transfer loop including a refrigerant, an evaporator, a source of heat for the evaporator, a condensor, a heat sink for the condenser, the low temperature chambers of the compressors, and means for controlling the flow of the refrigerant through the loop;
• and
• control means for controlling the means for controlling the flow of refrigerants in the heat transfer loops of the system.

A thermally powered heat transfer system comprising:

• a first and a second compressor, each compressor being divided by a flexible diaphragm into a high temperature and a low temperature chamber;
• a first and a second high temperature heat transfer loop, each such loop including a refrigerant, an evaporator, a source of heat for the evaporator, a condenser, a heat sink for the condenser, a high temperature chamber of a compressor, and a means for controlling the flow of refrigerant through the loop, the first high temperature loop including the high temperature chamber of the first compressor and the second high temperature loop including the high temperature chamber of the second compressor, the condenser of the first high temperature loop and evaporator of the second high temperature loop being combined so that the refrigerant of the second high temperature loop is the heat sink for the condenser of the first high temperature loop;
• a third and a fourth low temperature heat transfer loop, each such loop including a refrigerant, an evaporator, a source of heat for the evaporator, a condenser, a heat sink for the condenser, a low temperature chamber of a compressor, and means for controlling the flow of refrigerant through the loop, the third low temperature loop including the low temperature chamber of the first compressor and the fourth low temperature loop including the low temperature chamber of the second compressor;
• and
• control means for controlling the means for controlling the flow of refrigerants in the heat transfer loops of the system.