Direct ignition gas burner control system

Patent · Tue Aug 05 04:00:00 EDT 1986

OSTI ID:5401210

Mueller, C J; Brown, B T; Rippelmeyer, D M; Haefner, J S

An improved method is described for operating a direct ignition gas burner control system which includes a burner, two electrically operated valves connected fluidically in series with the burner, an electrical resistance igniter, and a microcomputer, comprising the steps of: energizing the igniter; opening both valves so as to enable flow of gas to the burner and ignition thereof; detecting burner flame and continuing the flow of gas to the burner as long as the burner flame exists; closing one of the valves; determining if the burner flame still exists and providing an indication of valve leakage if the burner flame still exists; closing the other of the valves; and reversing order of closing the valves on alternate burner cycles.

• Assignee: NOV; EDB-86-159702; NOV-85-019583
• Patent Number(s): US 4604046
• OSTI ID: 5401210
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
BURNERS
COMPUTERIZED CONTROL SYSTEMS
COMPUTERS
CONTROL EQUIPMENT
CONTROL SYSTEMS
ELECTRIC CONDUCTIVITY
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRONIC CIRCUITS
EQUIPMENT
FLAME PROPAGATION
FLOW REGULATORS
FLUID FLOW
GAS BURNERS
GAS FLOW
IGNITION
IGNITION SYSTEMS
LEAKS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
PHYSICAL PROPERTIES
VALVES