ELECTRONIC COOLANT VALVE WITH FLEXIBLE SEAL

摘要

An electronic coolant valve with a flexible sealing membrane. The membrane is expanded or contracted radially via a drive screw and an electric motor. The extension and retraction of the drive screw changes the shape of the membrane in the flow passage. The membrane can be adjusted to allow full passage of coolant through a passageway, to completely block off (close) the flow channel preventing fluid from flowing through it, or to allow a restricted or metered amount of coolant to pass through the passageway.