Patent ID: 7828044
Filing Date: 2010-11-09
Classification: F02B,F28D,F28F,Y02T

Abstract:
1. A charge air cooler comprising: at least one tubular element having inlet and outlet apertures and an internal flow duct therethrough 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 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, thereby subjecting compressed air in the tubular element to cooling as the compressed air passes through the flow duct, respective first and second movable control elements having respective first and second control element bodies respectively arranged close to the inlet apertures and the outlet apertures of the tubular elements, the first and second moveable control elements configured and operable to adjust passage of air through the respective inlet aperture and outlet aperture; a controller configured and operable for providing a variable flow of compressed air through the flow duct by independently operating the first and second movable control elements to be placed in various positions, the first and second control element bodies each having at least one hole through the body, 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 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.