Radiator for a Motor Vehicle

Abstract

A radiator for a motor vehicle has a block formed from several parallel tubes, through which flows a coolant, there being provided tubes with at least two different depths. Two or more spaced-apart tubes have a depth greater than a depth of the tubes lying in between and are configured as support tubes. In this way, fatigue strength problems of the radiator are avoided.

1 . A radiator for a motor vehicle, the radiator comprising:
 a block having several parallel tubes through which flows a coolant, said tubes having at least two different depths, at least two spaced-apart ones of said tubes have a first depth being greater than a second depth of said tubes lying in between, said tubes having said first depth are support tubes.   
     
     
         2 . The radiator according to  claim 1 , wherein a first tube of said tubes and a last tube of said tubes have said first depth which is greater than said second depth of said tubes lying in between, said first and last tubes are said support tubes. 
     
     
         3 . The radiator according to  claim 1 , wherein said tubes not configured as said support tubes have a same depth. 
     
     
         4 . The radiator according to  claim 1 , wherein a number of said support tubes is greater than two and between said support tubes are disposed shorter tubes of said tubes, and a spacing between neighboring said support tubes is regular. 
     
     
         5 . The radiator according to  claim 1 , wherein a number of said support tubes is at least three said support tubes, two of said support tubes lying at ends of said block and one of said support tube is disposed in a middle region of said block. 
     
     
         6 . The radiator according to  claim 1 , further comprising cooling fins running between said tubes. 
     
     
         7 . The radiator according to  claim 1 , wherein said block has a tube sheet and said tubes and said support tubes are disposed centrally in said tube sheet. 
     
     
         8 . The radiator according to  claim 1 , wherein said tubes and said support tubes are disposed displaced to one side of said block. 
     
     
         9 . The radiator according to  claim 1 , wherein said block has a tube sheet with a constant depth over an entire height of said block for said support tubes.