Method for manufacturing a heat exchanger pipe

摘要

#CMT# #/CMT# The method involves transforming a heat exchanger tube (1) with a circular cross-section into the exchanger tube with a non-circular cross-section i.e. rectangular cross-section. The exchanger tube with the non-circular cross-section is corrugated in a longitudinal direction (2) and/or a transverse direction during or after transformation of the exchanger tube. Amplitude (4) of the corrugation shape of the exchanger tube corresponds to 0.2 to 1.2 parts of an external diameter of the circular exchanger tube, where the exchanger tube is made of stainless steel. #CMT# : #/CMT# An independent claim is also included for an exhaust gas guiding heat exchanger comprising heat exchanger tubes. #CMT#USE : #/CMT# Method for manufacturing a tube of an exhaust gas guiding heat exchanger (claimed) e.g. oil cooling heat exchanger, intercooler heat exchanger and cooling circuit heat exchanger, that is utilized for cooling exhaust gas during exhaust gas recirculation in a combustion engine of a motor car. #CMT#ADVANTAGE : #/CMT# The method enables manufacturing the heat exchanger tube with compact installation space dimensions and high pressure tightness in a cost-effective and efficient manner while increasing cooling performance of the heat exchanger tube. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a side view of a heat exchanger tube. WB : Corrugation crest WT : Corrugation trough 1 : Heat exchanger tube 2 : Longitudinal direction of tube 4 : Amplitude of corrugation shape of heat exchanger tube.