Heat exchanger

• US 3,912,003 A
• Filed: 04/10/1974
• Issued: 10/14/1975
• Est. Priority Date: 04/13/1973
• Status: Expired due to Term

• Current Assignee: Jean Schrade
• Original Assignee: Jean Schrade
• Inventors: Schrade, Jean
• Primary Examiner(s): Myhre, Charles J.
• Assistant Examiner(s): Streule, Jr., Theophil W.
• Application Number:
  US05/459,468
• Time in Patent Office: 552 Days
• Field of Search: 165/164-166,179,183,181,135 62/3
• US Class Current: 165/165
• CPC Class Codes: F28F 19/04 of rubber; of plastics material; of varnish
• CPC Class Codes: F28F 21/065 the heat-exchange apparatus employing plate-like or laminated conduits
• CPC Class Codes: F28F 3/02 Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations F28F3/08 takes precedence
• CPC Class Codes: Y10S 165/355 having separate flow passage for two distinct fluids

Abstract

A versatile heat exchanger capable of being used in a modular arrangement. An impervious member separates fluid flow channels, with metal fins extending therethrough and sealed therein so that there is no leakage therethrough.

Claims

1. A heat exchanger comprising:

a first channel for conveying a first heat transfer fluid;

a second channel for conveying a second heat transfer fluid;

a corrosion resistant solid, impervious member separating said first channel and the first fluid circulating therein from the second channel and the fluid circulating therein, said member being a poor heat conductor;

a plurality of heat conductive metal fins extending through said member, with a first portion of said fins only partially extending into said first channel and a second portion of said fins only partially extending into said second channel so that the second fluid circulating in the second channel is in heat exchange relationship with the first fluid circulating in the first channel due to heat being conducted substantially only by said fins, said fins being sealed in said member so that there is no fluid leakage through said member.

2. A heat exchanger according to claim 1 wherein the first portion of said fins extending into the first channel transfers substantially more heat than the second portion of said fins extending into the second channel to compensate for dissimilar heat transfer characteristics of said fluids.

3. A heat exchanger according to claim 1 wherein said member is a corrosion resistant, organic plastic material.

4. A heat exchanger according to claim 1 wherein the first portion of said fins is a different metal than the second portion of said fins.

5. A heat exchanger according to claim 1 wherein the first portion of said fins extends further intO said first channel than the second portion of said fins extends into said second channel.

6. A heat exchanger according to claim 1 wherein at least a portion of said fins are shaped to increase heat transfer surface.

7. A heat exchanger according to claim 6 wherein said shaped fins are corrugated.

8. A heat exchanger according to claim 1 wherein at least a portion of said fins are arranged to cause lamellar flow of the fluid adjacent said fins.

9. A heat exchanger according to claim 1 wherein at least a portion of said fins are arranged to cause turbulent flow of the fluid adjacent said fins.

10. A heat exchanger according to claim 1 including a plurality of said members assembled together to form a complete unit, wherein the fins extending through each of said assembled members do not reach the next adjacent member.