Oil reservoir vent valve

An oil reservoir assembly for an engine of an aircraft, the oil reservoir assembly comprising:

• a tank comprising:
• a canister with an interior configured to contain a fluid;
• a fill port disposed in the canister;
• a first oil outlet mounted to a lower portion of the canister and in fluid communication with the interior of the canister;
• a second air outlet mounted to an upper portion of the canister and in fluid communication with the interior of the canister;
• and
• an inlet disposed in the canister, wherein the inlet is connected to a restrictor;
• a return passage disposed fluidly between the inlet of the tank and a scavenge pump of the engine, wherein the scavenge pump is fluidly connected to an accessory gearbox attached to the engine;
• a first passage disposed fluidly between the second air outlet and the accessory gearbox;
• a pressurization valve disposed fluidly between the first passage and the second air outlet of the tank, the pressurization valve with a valve member;
• and
• a vent valve disposed in the return passage, wherein the vent valve is disposed fluidly between the return passage and the first passage, the vent valve comprising:
• a body;
• a channel extending through a portion of the body;
• an inlet orifice disposed in a downstream end of the body relative to a direction of flow of air and oil through the return passage during engine operation;
• and
• an outlet orifice fluidly connected to the inlet orifice via the channel.