Fluid mixer

A fluid mixer, comprising:

• a Venturi tube having a constriction section at which the flow path area is reduced, the Venturi tube having a plurality of inflow openings formed therein, through which a second fluid flows into a low-pressure region generated due to an increase in fluid velocity when a first fluid passes through the constriction section;
• a valve body disposed in the Venturi tube, the valve body opened due to a pressure of the first fluid passing through the Venturi tube and changing the flow path area of the Venturi tube, as well as blocking some of the plurality of inflow openings when the valve body is closed and opening the same when the valve body is opened;
• and
• a biasing part applying a biasing force in a valve closing direction of the valve body, wherein the biasing part has a magnet applying a magnetic force in the valve closing direction.

A fluid mixer, comprising:

• a Venturi tube having a constriction section at which the flow path area is reduced, the Venturi tube having a plurality of inflow openings formed therein, through which a second fluid flows into a low-pressure region generated due to an increase in fluid velocity when a first fluid passes through the constriction section;
• a valve body disposed in the Venturi tube, the valve body opened due to a pressure of the first fluid passing through the Venturi tube and changing the flow path area of the Venturi tube, as well as blocking some of the plurality of inflow openings when the valve body is closed and opening the same when the valve body is opened;
• and
• a biasing part applying a biasing force in a valve closing direction of the valve body,
• wherein the valve body is formed divided, where a pressure of the first fluid passing through the Venturi tube when each divided valve body is opened is different, and the inflow opening is blocked for each divided valve body when the valve is closed, and the inflow opening is opened for each divided valve body when the valve is opened.

A fluid mixer, comprising:

• a Venturi tube having a constriction section at which the flow path area is reduced, the Venturi tube having a plurality of inflow openings formed therein, through which a second fluid flows into a low-pressure region generated due to an increase in fluid velocity when a first fluid passes through the constriction section;
• a valve body disposed in the Venturi tube, the valve body opened due to a pressure of the first fluid passing through the Venturi tube and changing the flow path area of the Venturi tube, as well as blocking some of the plurality of inflow openings when the valve body is closed and opening the same when the valve body is opened;
• a biasing part applying a biasing force in a valve closing direction of the valve body;
• and
• an adjusting section adjusting a pressure of the first fluid passing through the Venturi tube when the valve body is opened so as to be different.