Heat exchanger header

Abstract

The invention concerns a header (3) for a heat exchanger (1) comprising: a header plate (4) comprising orifices intended to receive tubes (2), said header plate (4) comprising a peripheral groove (42), a compressible gasket (44) arranged within the peripheral groove (42), a cover (8) covering the header plate (4) and comprising lateral walls (81) that are inserted into the peripheral groove (42) and compress the gasket (44), the lateral walls (81) of the cover (8) comprising projecting retaining elements (82) that come to bear on the header plate (4).

1 . A header for a heat exchanger comprising:
 a header plate comprising orifices intended to receive tubes, said header plate comprising a peripheral groove;   a compressible gasket arranged within the peripheral groove; and   a cover covering the header plate and comprising lateral walls that are inserted into the peripheral groove and compress the gasket,   wherein the lateral walls of the cover comprise projecting retaining elements that come to bear on the header plate.   
     
     
         2 . The header as claimed in  claim 1 , wherein the header plate has a generally rectangular shape with two long sides and two short sides, the retaining elements coming to bear simultaneously on the two long sides and/or the two short sides of said header plate. 
     
     
         3 . The header as claimed in  claim 2 , wherein the retaining elements are produced on the outer face of the lateral walls and come to bear on the outer rim of the peripheral groove. 
     
     
         4 . The header as claimed in  claim 3 , wherein the outer rim of the peripheral groove comprises crimping lugs and the retaining elements come to bear between two crimping lugs. 
     
     
         5 . The header as claimed in  claim 1 , wherein the retaining elements are produced on the inner face of the lateral walls and come to bear on the inner rim of the peripheral groove. 
     
     
         6 . The header as claimed in  claim 5 , wherein on a given side of the header plate, the cover comprises a single continuous retaining element along the length of said side of the header plate. 
     
     
         7 . The header as claimed in  claim 5 , wherein on a given side of the header plate, the cover comprises at least two local retaining elements distributed along the length of said side of the header plate. 
     
     
         8 . The header as claimed in  claim 7 , wherein the local retaining elements are arranged so as to bear on the header plate opposite spaces between the orifices of said header plate. 
     
     
         9 . The header as claimed in  claim 1 , wherein the retaining elements are integral with the cover. 
     
     
         10 . A heat exchanger comprising:
 a header including:
 a header plate comprising orifices intended to receive tubes, said header plate comprising a peripheral groove; 
 a compressible gasket arranged within the peripheral groove; and 
 a cover covering the header plate and comprising lateral walls that are inserted into the peripheral groove and compress the gasket, 
   wherein the lateral walls of the cover comprise projecting retaining elements that come to bear on the header plate.   
     
     
         11 . A header for a heat exchanger comprising:
 a header plate comprising orifices intended to receive tubes, said header plate comprising a peripheral groove;   a compressible gasket arranged within the peripheral groove; and   a cover covering the header plate and comprising lateral walls that are inserted into the peripheral groove and compress the gasket,   wherein the lateral walls of the cover comprise projecting retaining elements that come to bear on the header plate,   the projecting retaining elements forming stops that prevent ends of the lateral walls of the cover from being pressed beyond a limit into the peripheral groove.