Patent · US Expired

Heat exchangers

US4694894A · kind A · utility

19Cited by
9References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 16, 1985
Grant dateSep 22, 1987
Priority date
Expiry dateSep 16, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S165/908
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

A heat exchanger which includes a casing having an outer tube and an inner tube fixed therein. Holes are formed in the inner tubes and face a heat transfer surface of the outer tube. Hot exhaust gas may be passed from an inlet of the outer tube into the inner tube, through the holes in the inner tube to an outlet. Coolant water may be passed through the casing from an inlet port to an outlet port. Baffles and/or twist coils may be provided to improve heat transfer.

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