Patent ID: 7819639

Claim:
A cooling device for an air compressor, which is provided with at least two heat exchangers for cooling of output air, the cooling device comprising: a jacket enclosing a multistage cylinder compressor including a first compressor stage and a second compressor stage, an air intake opening in the jacket, a fan in connection with the air intake opening, wherein the fan during operation causes an overpressure inside the jacket, a first air outlet opening in the jacket, wherein for cooling of output air from the first compressor stage a first heat exchanger is mounted in the first air outlet opening so that air that cools the first heat exchanger leaves through the first air outlet opening in the jacket, a second air outlet opening in the jacket, wherein for cooling of output air from the second compressor stage a second heat exchanger is mounted in the second air outlet opening so that air that cools the second heat exchanger leaves through the second air outlet opening in the jacket, a third air outlet opening in the jacket for discharging compressed air from the second compressor stage, a fourth air outlet opening in the jacket for discharging air for cooling elements of the compressor, wherein the elements of the compressor comprise at least a cylinder wall, cylinder cover/top, and crankcase, so that air that cools the cooling elements of the compressor leaves through the fourth air outlet opening in the jacket, and wherein the fan is constructed to provide cooling of compressed air from the first compressor stage in the first heat exchanger, cooling of compressed air from the second compressor stage in the second heat exchanger, and cooling of elements of the compressor.