FILL LIMIT VENT VALVE FOR UREA TANK OF VEHICLE

摘要

A fill limit vent valve for a urea tank of a vehicle may include a head section having a first inner space, a second inner space and an exhaust port, a first housing section and a second housing section each having an inflow hole so that air and urea flow into an inner space of the respective first and second housing sections in the urea tank, a floater to open and close a vent hole between the first housing section and the head section, a vent hole formed to allow communication between the first inner space of the head section and the inner space of the first housing section, and between the second inner space of the head section and the inner space of the second housing section, respectively, and a connection passage allow the inner space and the second space of the head section to communicate with each other.

主权项

1. A fill limit vent valve for a urea tank of a vehicle, comprising:
a head section having a first inner space, a second inner space and an exhaust port for discharging air flowing into the first inner space; a first housing section and a second housing section integrally formed in the head section, the first and second housing sections each having an inflow hole formed so that air and urea flow into an inner space of the respective first and second housing sections in the urea tank, and positioned by being inserted into the urea tank; a floater disposed in the inner space of the first housing section so as to vertically move according to a liquid level height of the urea introduced from the urea tank through each inflow hole and configured to open and close a vent hole between the first housing section and the head section according to a vertical movement position; a vent hole formed to allow communication between the first inner space of the head section and the inner space of the first housing section, and between the second inner space of the head section and the inner space of the second housing section, respectively; and a connection passage provided to allow the inner space and the second space of the head section to communicate with each other, wherein the inflow hole of the first housing section is formed at a height lower than the inflow hole of the second housing section.