Charge Air Cooler

A charge air cooler comprising

• at least one tubular element with inlet and outlet apertures and with an internal flow duct for leading compressed air between the inlet aperture and the outlet aperture, and the tubular element having an outside surface shaped such that a medium which is at a lower temperature than the compressed air in the duct is caused to flow in contact with the outside surface of the tubular element so that the compressed air in the tubular element is subjected to cooling as the air passes through the flow duct,
• a respective movable control element comprising a respective body arranged close to at least one of the inlet aperture and the outlet aperture, and operable to adjust passage of air through the at least one aperture;
• a controller operable for providing a variable flow of compressed air through the flow duct by operating the movable control element is to be placed in various positions,
• the control element body including a control in the form of at least one hole through the body and the hole is in a position close to the respective one of the inlet aperture and the outlet aperture of the tubular element so that the at least one hole in the body cooperates with the respective one of the inlet aperture or and the outlet aperture to together form a passage for compressed air, the passage having a flow-limiting cross-sectional area which is related to the position of the control element body with respect to the respective one of the apertures.