Fuel burner control system with selectable standing pilot mode

Details Fuel burner control system with selectable standing pilot mode Fuel burner control system with selectable standing pilot mode

1992-10-22

1994-11-01

Price, Carl D.

Combustion

Process of combustion or burner operation

Starting or shutdown procedure

431 72, 431 29, 431 31, F23N 520

Patent

active

053603354

ABSTRACT:
A burner control system with an interrupted or intermittent type of pilot burner has a special feature allowing transitions between a pilot flame hold state where the pilot flame only burns and the run state where the main burner is operating. Each transition to the pilot flame hold state from the run state comprises a brief period in which presence of the pilot flame is assured while the main flame is extinguished. Transitions to the run state from the pilot flame hold state may proceed directly through the main flame establishment period to the run state, thereby eliminating the time-consuming purging and pilot flame ignition phases.

REFERENCES:
patent: 3814569 (1974-06-01), Jacobsz
patent: 4035135 (1977-07-01), Jacobsz
patent: 4249884 (1981-02-01), Cade
patent: 4901917 (1990-02-01), Littell, III
patent: 4999792 (1991-03-01), Anderson et al.
patent: 5078317 (1992-01-01), Kenner et al.
patent: 5121880 (1992-06-01), Adams et al.

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