Seal and vent assembly for a vehicle driveline

A constant velocity joint, comprising:

• an outer race extending along an axis and defining a compartment;
• an inner race disposed in the compartment and pivotable relative to the outer race;
• a vent plate disposed in the compartment and defining a mounting aperture and at least one venting channel disposed in spaced relationship with the mounting aperture;
• a vent valve having a body portion extending along the axis and received by the mounting aperture and a rim portion extending from the body portion into biased engagement with the vent plate to cover the at least one venting channel and define a chamber between the rim portion, the body portion and the vent plate;
• the rim portion of the vent valve disposed in sealed engagement with the vent plate when a pressure in the compartment of the driveline is less than a predetermined pressure to seal the compartment from contaminants and prevent air from passing from an atmosphere between the rim portion and the vent plate;
• and
• the at least one venting channel fluidly connecting the chamber and the compartment of the outer race for allowing air to pass from the compartment through the at least one venting channel into the chamber and to the atmosphere between the rim portion and the vent plate during an increase of the pressure in the compartment above the predetermined pressure.