DEVICE FOR PRODUCTION OF HEAT AND COLD Russian patent published in 1998 - IPC

FIELD: air heating and cooling of living and industrial buildings; heating systems and refrigerating engineering. SUBSTANCE: gas distributing device is made in form of two-position four-way cock 1. Expander and compressor are made in form of intake bellows 3 and 4 and compression bellows 2 and 5 which are rigidly interconnected. Mechanical drive is kinematically linked with rigid brace of bellows 2 and 3 of compressor and two-position four-way cock 10 which makes its possible for expander to operate under action of gas resultant force and transmission of heat from working medium to rated volume of air to be heated in two stages from receiving bellows 4 of expander and from compression bellows 2 of compressor. EFFECT: enhanced efficiency, reduction of spurious spaces and hydrodynamic losses due to facilitated heat exchanger between working medium and air without any external heat exchangers and devices for blowing air through them. 2 dwg, 1 tbl