Pressure controlled valve for a piston cooling nozzle

摘要

The device has detachable valve nozzles (8a-8d) including a valve body with an upstream segment that is fitted axially into a bore of an engine along axial direction of penetration. A valve (21) is opened when upstream pressure of fluid is greater than a threshold pressure. The valve has a closure unit comprising a movable blocking component moves in a compartment for blocking an opening of a seat. The movable blocking component moves away from the seat.