| 摘要 |
FIELD: transport.SUBSTANCE: invention relates to machine building, particularly to cabin heating system. System comprises system of pipelines, smaller and larger coolant circulation circuits, radiator fitted in coolant smaller circulation circuit, and electrically driven fan. System comprises additionally third circuit including sealed tank, second radiator, electrically driven pump, and pump switch. Said pump is communicated with sealed tank connected with second radiator located nearby the first one. Electrically driven pump is connected via switch with onboard electric circuit.EFFECT: reduced power consumption, higher reliability.1 dwg, 1 tbl |
