FIELD: ventilation.
SUBSTANCE: in the invention the new is the use for solving this problem of essentially new gravitational drive, which enables without electronic means to control automatically the shut-off and adjusting devices of ventilation systems. The simplest version of the said drive is a system of two sealed reservoirs interconnected by a tube, rotating on an axis. One of the reservoirs is filled with low-boiling liquid, which amount and weight varies depending on the ambient air temperature. At that the position of center of gravity of this system changes relative to the axis. With each passing of the center of gravity through the axis due to gravitational forces, the valve is turned in one direction or another, opening or closing, depending on the ambient air temperature, air flow through the shut-off and adjusting device.
EFFECT: invention enables to reduce capital and operating costs for ventilation of buildings and structures.
1 dwg
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