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Title: Cascaded arrangement for electrically heating fluids to high temperature

Patent ·
OSTI ID:5249203

A cascaded fluid heating arrangement is described comprising in combination: pump means formed to discharge a relatively constant stream of fluid; electrical power source means; temperature controller means connected to the electrical power source means to receive electrical energy therefrom; first electrical heating means connected through first connecting circuitry to the temperature controller means, the first electrical heating means disposed in a first heating chamber means which is coupled to the pump means to receive the relatively constant stream of fluid therefrom to enable the first electrical heating means to heat the stream of fluid to a first temperature. The first electrical heating means are formed and disposed to act as a sensor whereby the temperature controller includes means responsive to changes in electrical resistance in the first electrical heating means; second electrical heating means disposed in a second heating chamber, which second heating chamber is coupled to the first heating chamber to receive the stream of fluid therefrom and whereby second electrical heating means heats the stream of fluid to a higher temperature than the first temperature; interface circuitry means connected to the first connecting circuitry and disposed to connect the power source to the second electrical heating means. The interface circuitry is formed such that as the electrical current to the first electrical heating means varies. The interface circuitry will cause the power source to provide a related variation in current directly to the second heating means.

Assignee:
Athena Controls, Inc., Plymouth Meeting, PA
Patent Number(s):
US 4604516
OSTI ID:
5249203
Resource Relation:
Patent File Date: Filed date 19 Jul 1983
Country of Publication:
United States
Language:
English