DEVICE FOR IMPARTING ODOR TO GAS Russian patent published in 2008 - IPC G05D11/00 

FIELD: imparting odor to gases.

SUBSTANCE: device comprises tank filled with liquid to be batched, batching pump, pressure difference gage provided with the plus and minus chambers, vertical measuring pipe provided with the inlet and outlet branch pipes at the ends, source of excess gas pressure, by-pass valve, and calibrated pipe with open end that is set pressure-tightly in the vertical measuring pipe from above. The open end is positioned near the bottom end of the vertical measuring pipe, and top end is connected with the gas pipeline and by-pass valve. The batching pump is connected with the tank that is connected with the gas pipeline. The outlet of the batching pump is connected with the plus chamber of the pressure difference gage and bottom end of the vertical measuring pipe. The minus chamber of the pressure difference gage cooperates with the by-pass valve, free space of the top section of the vertical measuring pipe, and source of excess pressure .

EFFECT: enhanced precision.

1 dwg