Claims
- 1. A combustion control apparatus, comprising:
- a signal generating device adaptable to generate a signal from a condition of a process, the signal generating device coupled in parallel to a resistance, a first electro-responsive device, and a second electro-responsive device,
- the first electro-responsive device adapted to be responsive to a signal of a first characterization,
- the second electro-responsive device adapted to be responsive to a signal of a second characterization,
- the resistance coupled to a first plate of a capacitance, the capacitance adaptable to provide a signal of a first characterization and a signal of a second characterization,
- a second plate of the capacitance coupled in parallel to the first electro-responsive device and to the second electro-responsive device.
- the first electro-responsive device being further coupled to an air control device adaptable to control a flow of combustion air in response to a signal from the first electro-responsive device, and
- the second electro-responsive device being further coupled to a fuel control device adaptable to control a flow of fuel in response to a signal from the second electro-responsive device.
- 2. A combustion control apparatus as described in claim 1, wherein:
- the first electro-responsive device comprises a first voltage comparator switch, and
- the second electro-responsive device comprises a second voltage comparator switch.
- 3. A combustion control apparatus as described in claim 2, wherein:
- the first electro-responsive device further includes a first signal output amplifier in series between said first voltage comparator switch and the air control device, and
- the second electro-responsive device further includes a second signal output amplifier in series between said second voltage comparator switch and the fuel control device.
BACKGROUND OF THE INVENTION
This application is a continuation-in-part of application Ser. No. 40,946 filed May 21, 1979, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
2163510 |
Cantrell et al. |
Jun 1939 |
|
2980334 |
Geniesse |
Apr 1961 |
|
4003342 |
Hodgson |
Jan 1977 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
40946 |
May 1979 |
|