Patent · US Expired

Heat exchanger with bilayered metal end container for anticorrosive addition

US4338997A · kind A · utility

10Cited by
13References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 5, 1981
Grant dateJul 13, 1982
Priority date
Expiry dateJan 5, 2001

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/12743
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A membrane for the end surface of a container for a corrosion inhibitor for engine coolant where the membrane is exposed to the coolant and corrodes when the corrosiveness of the coolant increases above a predetermined level. The membrane is formed of the same metal or alloy as the radiator and has a thin layer thereon of a second metal except for certain areas where the base metal is exposed so that in a corrosive environment, a galvanic cell is set up between the two metals to enhance the rate of corrosion of the membrane.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.