Heat exchanger

Abstract

Abstract PURPOSE:To improve the heat exchange efficiency of the heat exchanger by constituting a header and a tube of an aluminum hollow extrusion molded material, dividing a coolant passage into a front side path and a rear side path with respect to an air circulating direction and causing a coolant to flow in a direction opposite to the thickness direction of a core. CONSTITUTION:A gaseous coolant entering a front side passage 10a from a coolant inlet 7 at one end of a lower stage header 2 into a front side passage 10a within the header is distributed into a front side passage 13a of a tube 3 and rises up therein. Successively, the coolant enters a coolant passage 18 within an upper stage header 1 and makes detour around the lower part of the passage 18 and converts the direction by a locating and stirring plate 17. Thereafter, the coelant enters the rear side passage 13b of the tube 3 to flow down along the passage. Upon this time, the major part of the coolant is in a gas-liquid mixed state, and while falling down, the coolant is subjected to heat exchange with external air and is deprived of its quantity of heat retained. The coolant immediately assumes a low-temperature state and is collected at the rear side passage 10b of the lower stage header and discharged through an outlet 8.

Inventors

• 👤 Hideaki Miura
• 👤 三浦　秀明
• 👤 Shoichi Watanabe
• 👤 正一 渡辺
• 👤 Noboru Ogasawara
• 👤 昇 小笠原

Bibliographic Details