HEAT EXCHANGER

PROBLEM TO BE SOLVED: To suppress the malfunction resultant from the difference in expansion and contraction amount between a plurality of tubes.SOLUTION: A heat exchanger 10 comprises a plurality of tubes 12. The tubes 12 are inserted into through holes 41a formed on a header plate 41. The pluralit...

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Bibliographische Detailangaben
1. Verfasser:	SAITO MITSUKATSU
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES BLASTING DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To suppress the malfunction resultant from the difference in expansion and contraction amount between a plurality of tubes.SOLUTION: A heat exchanger 10 comprises a plurality of tubes 12. The tubes 12 are inserted into through holes 41a formed on a header plate 41. The plurality of tubes 12 include first tubes 21 through which a low temperature refrigerant flows and second tubes 22 through which hot water flows. The through holes 41a for the first tubes 21 are provided with comparatively small bulges 31 formed around the through holes 41a. The through holes 41a for the second tubes 22 are provided with comparatively large bulges 32 formed around the through holes 41a. The difference in expansion and contraction amount may be generated between the first tubes 21 and the second tubes 22. The second bulges 32 are easier deformable than the first bulges 31. Therefore, the difference in expansion and contraction amount between the first tubes 21 and the second tubes 22 is mainly absorbed by the deformation of the second bulges 32.