What Are Oil Accumulators?
Oil accumulators, also called Moroso accumulators, prevent the intermittent loss of oil pressure that occurs during hard acceleration, cornering, and braking. The accumulator forces a reserve oil of 1.5 quarts into the main galleries, where it is tapped into the engine's fueling system. The reserve-oil-pressure-induced pressure forces oil into the holder, which is then tapped into the engine's lubrication system. In a car, oil accumulators collect oil and store it under pressure. When the internal pressure of the car's oil falls, the accumulator releases the stored oil. They have valves to prevent loss of pressure when the engine is turned off, which prevents the engine from reducing the oil pressure. Once the engine is turned off, the valves open. The oil flows through the lines to the engine. The one-way check valve directs the oil into the oil galleries. Accusump is a brand of oil accumulator that delivers oil to the engine before starting, preventing the engine from ...