Patent ID: 8585196

Claim:
A degasifier comprising: a gas chamber that is separated from a liquid flow path by a transmission member capable of transmitting a gas dissolving in a liquid in the liquid flow path; a degasification unit that expels the gas dissolving in the liquid from the liquid by discharging the gas in the gas chamber through a discharge path so that a pressure in the gas chamber is negative; and a resistance applying unit that applies an inflow resistance to atmosphere which flows into the discharge path so that the gas chamber is maintained at a pressure at which the liquid can be degasified at the time of the discharging by the degasification unit while the discharge path is open to the atmosphere at all times; wherein the resistance applying unit includes: an opening which diameter is smaller than a diameter of the discharge path and that opens the discharge path to the atmosphere at all times; and a resistive element that covers the opening from an outside, that is larger than the diameter of the opening, and that applies the inflow resistance.