Patent ID: 6484797
Filing Date: 2002-11-26
Classification: F28D,F28F

Abstract:
A laminated type heat exchanger comprising:a refrigerant inlet tank comprising a plurality of refrigerant inlet chambers, and in which a refrigerant passage passing through the refrigerant inlet chambers is formed; a refrigerant outlet tank comprising a plurality of refrigerant outlet chambers, and in which a refrigerant passage passing through the refrigerant outlet chambers is formed; a plurality of refrigerant pipes each having one end which is connected to the refrigerant inlet chamber and the other end which is connected to the refrigerant outlet chamber; a refrigerant gate portion for flowing the refrigerant into the refrigerant inlet tank and from the refrigerant outlet tank; a dispersion pipe which is inserted in the refrigerant passage formed in the refrigerant inlet tank; wherein the length of the dispersion pipe is &frac13;ËœÂ¼ of the length of the refrigerant passage in the refrigerant inlet tank, the sectional area of the dispersion pipe is smaller than that of the refrigerant passage in the refrigerant inlet tank, a plurality of dispersion holes are formed at the opposite side of the dispersion pipe against the refrigerant pipe, and the size of the dispersion holes increases with the increase in the distance from the refrigerant gate portion.