PROBLEM TO BE SOLVED: To provide a tube for a heat exchanger which can surely improve heat exchange efficiency.SOLUTION: A tube for a heat exchanger comprises: a cylindrical member 10 in which a refrigerant passage 40 in which a refrigerant flows is formed, and whose cross section shape is formed into a flat shape extending along an air flow direction; and inner fins 12 arranged in the cylindrical member 10, and partitioning the refrigerant passage 40 into a plurality of fine flow passages 4. A communication part 6 in which a plurality of clearances 5 for making the adjacent fine flow passages 4 communicate with each other is arranged at a part of the cylindrical member 10 in a longitudinal direction, and in the communication part 6, a passage cross section area of the clearance 5 at a downstream side of the air flow direction is larger than a passage cross section area of the clearance 5 at an upstream side of the air flow direction.SELECTED DRAWING: Figure 5
【課題】熱交換効率を確実に向上させることができる熱交換器用チューブを提供する。【解決手段】内部に冷媒が流れる冷媒流路40が形成されるとともに、断面形状が空気の流れ方向に沿って延びる扁平形状に形成された筒状部材10と、筒状部材10内部に設けられるとともに、冷媒流路40を複数の細流路4に仕切るインナーフィン12とを備え、筒状部材10の長手方向の一部には、隣り合う細流路4同士を連通させる隙間5が複数形成された連通部6が設けられており、連通部6において、空気流れ方向下流側の隙間5における通路断面積が、空気流れ方向上流側の隙間5における通路断面積よりも大きい。【選択図】図5
TUBE FOR HEAT EXCHANGER
熱交換器用チューブ
2018-08-09
Patent
Electronic Resource
Japanese
IPC: | F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / F28D Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen , HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT |