Automatic control of endothermic gas generators using low cost o

Details Automatic control of endothermic gas generators using low cost o Automatic control of endothermic gas generators using low cost o

1997-03-25

1998-10-27

Kemper, Melanie

Boots, shoes, and leggings

36452801, G01N 2726, G05D 700

Patent

active

058285822

ABSTRACT:
A control system for a gas generator is disclosed. The control system includes an automotive type oxygen sensor that produces a signal responsive to the oxygen content of a product gas. The automotive type oxygen sensor is connected to a controller and is installed in the gas generator so that the sensor tip is in the product gas, downstream of a first heat exchanger. Preferably, the installation of the automotive sensor is at a point where the product gas has been cooled to at least 1500.degree. F. at a rate of at least 4000.degree. F. The controller produces an output signal responsive to the oxygen sensor signal. A trim valve receives the controller output signal and responsively varies an input gas to vary the composition of the product gas.

REFERENCES:
patent: 4060807 (1977-11-01), Barton
patent: 4147513 (1979-04-01), Bienkowski et al.
patent: 5211820 (1993-05-01), Poor et al.

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