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US 5,822,981 AGranted
Automatic control system and method for corona discharge pollutant destruction apparatus
AssigneeHughes Electronics Corporation
InventorsWeldon S. Williamson, Franklin A. Dolezal, Nelson W. Sorbo, John H. S. Wang
Life of this patent
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Abstract
In a pollutant destruction apparatus employing one or more corona discharge reactors, an automatic control system controls power generation characteristics for corona discharge reactions according to factors such as the types and the amounts of pollutants in an exhaust gas, maximum allowable emissions, engine operating characteristics, drive control characteristics and intelligent vehicle highway system inputs, to achieve improved treatment of the pollutants.
Claims12
A corona discharge pollutant destruction system, comprising:
- at least one corona discharge reactor capable of generating corona discharges to destroy pollutants in an exhaust gas;
- at least one power source connected to supply electrical power to said reactor for generating corona discharges in said reactor;
- at least one exhaust gas sensor connected to sense the pollutant content of said exhaust gas from said reactor, said sensor capable of generating sensor signals;
- and
- a control module connected to dynamically control the power source's power generation parameters to said reactor in response to changing sensor signals from said sensor, wherein said power generation parameters include at least one of the voltage, resonator frequency, pulse width and pulse repetition rate applied to said reactor.
2 more elements
A corona discharge pollutant destruction system, comprising:
- a plurality of corona discharge reactors capable of generating corona discharges to destroy pollutants in an exhaust gas;
- at least one power source connected to supply electrical power to said reactors for generating corona discharges in said reactors;
- a plurality of exhaust gas sensors connected to sense the amounts of pollutants in said exhaust gas exiting a plurality of said reactors, said sensors capable of generating sensor signals;
- a control module connected to dynamically control the power source's power generation parameters to said reactors in response to changing sensor signals from said sensors;
- a computer connected to receive inputs from said sensors and in response to provide an output to said control module for controlling said power source's power generation parameters;
- and
- an emission analyzer connected to analyze the amounts of the pollutants sensed by said exhaust gas sensors, and in response transmit analyzed pollutant data to said computer.
4 more elements
A corona discharge pollutant destruction system, comprising:
- at least one corona discharge reactor capable of generating corona discharges to destroy pollutants in an exhaust gas;
- at least one power source connected to supply electrical power to said reactor for generating corona discharges in said reactor;
- at least one exhaust gas sensor connected to sense the pollutant content of said exhaust gas from said reactor, said sensor capable of generating sensor signals;
- a control module connected to dynamically control the power source's power generation parameters to said reactor in response to changing sensor signals from said sensor, and
- a computer connected to received inputs from said sensor and in response to provide an output to said control module for controlling said power source's power generation parameters;
- wherein said pollutants are generated by an engine, and further comprising at least one engine sensor connected to sense at least one engine characteristic and to transmit it to said computer, said computer responding to selected changes in said sensed engine characteristic by adjusting its output to said control module.
3 more elements
A corona discharge pollutant destruction system, comprising:
- at least one corona discharge reactor capable of generating corona discharges to destroy pollutants in an exhaust gas;
- at least one power source connected to supply electrical power to said reactor for generating corona discharges in said reactor;
- at least one exhaust gas sensor connected to sense the pollutant content of said exhaust gas from said reactor, said sensor capable of generating sensor signals;
- a control module connected to dynamically control the power source's power generation parameters to said reactor in response to changing sensor signals from said sensor;
- a computer connected to received inputs from said sensor and in response to provide an output to said control module for controlling said power source's power generation parameters;
- and
- at least one drive control sensor connected to sense drive control characteristics and to convey said drive control characteristics to said computer, said computer responding to selected changes in said drive control characteristics by adjusting its output to said control module.
4 more elements
A corona discharge pollutant destruction system, comprising:
- at least one corona discharge reactor capable of generating corona discharges to destroy pollutants in an exhaust gas;
- at least one power source connected to supply electrical power to said reactor for generating corona discharges in said reactor;
- at least one exhaust gas sensor connected to sense the pollutant content of said exhaust gas from said reactor, said sensor capable of generating sensor signals;
- a control module connected to dynamically control the power source's power generation parameters to said reactor in response to changing sensor signals from said sensor;
- and
- a computer connected to received inputs from said sensor and in response to provide an output to said control module for controlling said power source's power generation parameters, wherein said computer is connected to receive data for maximum allowable amounts of pollutants from an intelligent vehicle highway system (IVHS), said computer responding to selected changes in said IVHS data by adjusting its output to said control module.
3 more elements
A corona discharge pollutant destruction system, comprising:
- at least one corona discharge reactor capable of generating corona discharges to destroy pollutants in an exhaust gas;
- at least one power source connected to supply electrical power to said reactor for generating corona discharges in said reactor;
- at least one exhaust gas sensor connected to sense the pollutant content of said exhaust gas from said reactor, said sensor capable of generating sensor signals;
- a control module connected to dynamically control the power source's power generation parameters to said reactor in response to changing sensor signals from said sensor;
- and
- a computer connected to receive inputs from said sensor and in response to provide an output to said control module for controlling said power source's power generation parameters, wherein said computer further comprises a memory programmed with data for maximum allowable amounts of pollutants treatable by said system.
3 more elements
A corona discharge pollutant destruction system, comprising:
- at least one corona discharge reactor capable of generating corona discharges to destroy pollutants in an exhaust gas, wherein said pollutants comprise at least one of hydrocarbons (C), carbon monoxide (CO) and nitrogen oxides (NO.sub.x);
- at least one power source connected to supply electrical power to said reactor for generating corona discharges in said reactor;
- at least one exhaust gas sensor connected to sense the pollutant content of said exhaust gas from said reactor, said sensor capable of generating sensor signals;
- and
- a control module connected to dynamically control the power source's power generation parameters to said reactor in response to changing sensor signals from said sensor.
2 more elements
A low polluting automobile, comprising:
- an automobile body;
- an internal combustion engine within said automobile body that emits a pollutant bearing exhaust gas;
- and
- a corona discharge pollutant destruction system connected to remediate pollutants in said exhaust gas, comprising:
- at least one corona discharge reactor capable of generating corona discharges to destroy pollutants in said exhaust gas;
- at least one power source connected to supply electrical power to said reactor for generating corona discharges in said reactor;
- at least one exhaust gas sensor connected to sense the pollutant content of exhaust gas from said reactor, said sensor capable of generating sensor signals;
- a control module connected to dynamically control the power source's power generation parameters to said reactor in response to changing sensor signals from said sensor, said parameters comprising at least one of the voltage, resonator frequency, pulse width and pulse repetition rate applied to said reactor;
- a computer connected to receive inputs from said sensor and in response to provide an output to said control module for controlling said power source's power generation parameters;
- and
- at least one drive control sensor connected to sense drive control characteristics of said automobile body and to convey said drive control characteristics to said computer, said computer responding to selected changes in said drive control characteristics by adjusting its output to said control module.
8 more elements
Dependencies are inferred from the claim text.