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Patent Searching and Data


Title:
DEVICE FOR PROTECTING A HEAT EXCHANGER AGAINST CORROSION
Document Type and Number:
WIPO Patent Application WO2003100337
Kind Code:
A3
Abstract:
The invention concerns a device for protecting the aluminium walls of a heat exchanger against corrosion by an aggressive environment to which its walls are subjected. The device comprises at least a renewable sacrificial resist (14) consisting of elements, in particular zinc and/or magnesium elements, adapted to reduce at least locally the electrochemical potential of the aluminium of the heat exchanger walls. The sacrificial resist can be contained either in the heat exchanger or in a fluid circuit comprising the heat exchanger. The invention is particularly applicable to motor vehicle heat exchangers.

Inventors:
GODEFROY ALAIN (FR)
FRASCA DANIEL (FR)
Application Number:
PCT/FR2003/001632
Publication Date:
April 01, 2004
Filing Date:
May 28, 2003
Export Citation:
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Assignee:
VALEO THERMIQUE MOTEUR SA (FR)
GODEFROY ALAIN (FR)
FRASCA DANIEL (FR)
International Classes:
F01P3/18; C23F13/00; F28F19/00; F28F19/06; F28F21/08; (IPC1-7): F28F19/00; F28F21/08
Foreign References:
US5649591A1997-07-22
EP1146311A12001-10-17
EP1055898A22000-11-29
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