초록 ▼

A plurality of heat transfer tubes are disposed at certain intervals, in-tube operating fluid (such as coolant) passes therethrough, and a plurality of small-gage wires are used as a heating fin. One small-gage wire is wound at a pair of heat transfer tubes 1a and 1c in a spiral manner, and another

A plurality of heat transfer tubes are disposed at certain intervals, in-tube operating fluid (such as coolant) passes therethrough, and a plurality of small-gage wires are used as a heating fin. One small-gage wire is wound at a pair of heat transfer tubes 1a and 1c in a spiral manner, and another small-gage wire is wound at a pair of heat transfer tubes 1b and 1c in the spiral manner, and still another small-gage wire is wound at a pair of heat transfer tubes 1b and 1d in the spiral manner. Thereby, while higher heat transfer coefficient can be achieved, and a heating surface area is ensured, clogging can be avoided even when moisture in air condenses on a surface of a heat exchanger. As a result, it is possible to realize a high-performance and compact heat exchanger used for air conditioning.

대표청구항 ▼

[What is claimed is:] [1.]a plurality of heat transfer tubes disposed at intervals; anda small-gage wire wound to surround outer peripheries of two or more of the plurality of heat transfer tubes;wherein the small-gage wire is in tension and is joined with outer surfaces of the two or more heat tran

[What is claimed is:] [1.]a plurality of heat transfer tubes disposed at intervals; anda small-gage wire wound to surround outer peripheries of two or more of the plurality of heat transfer tubes;wherein the small-gage wire is in tension and is joined with outer surfaces of the two or more heat transfer tubes. [10.]a decelerating portion mounted to the inlet header so as to decelerate a coolant flow; anda gas bypass pipe to send to the outlet header a gaseous phase coolant among the coolant divided into the gaseous phase and a liquid phase in the decelerating portion.a perforated plate having through-holes to partition a space in the inlet header into upper and lower spaces; anda gas bypass pipe to communicate an end of the inlet header on the side opposed to a coolant piping connecting portion with the outlet header,wherein openings in the heat transfer tubes are positioned under the perforated plate.the fin including small-gage wires wound in a spiral manner between the heat transfer tubes; anda gas bypass pipe in communication between an upper portion of the inlet header and the outlet header from which a coolant is discharged, and having a larger sectional area than that of the heat transfer tube,wherein the inlet header has a larger sectional area than that of inlet coolant piping into which a gas-liquid two-phase coolant flows.the fin including small-gage wires wound in a spiral manner between the heat transfer tubes; anda gas bypass pipe in communication between an upper portion of the inlet header and the outlet header from which a coolant is discharged, and having a larger sectional area than that of the heat transfer tube,wherein the inlet header has a larger sectional area than that of inlet coolant piping into which a gas-liquid two-phase coolant flows.