Combustion heater

Details Combustion heater Combustion heater

1995-04-24

1997-04-08

Dority, Carroll B.

Heating systems

Heat and power plants

Vehicle

B60H 102

Patent

active

056179952

ABSTRACT:
In a combustion heater, at the time of ignition, a fuel supply amount is increased in a stepwise fashion. On the other hand, at the time of extinction, the fuel supply amount is decreased in a stepwise fashion. The fuel supply amount is increased stepwise using different fuel increasing amounts or different fuel increasing periods, both depending on heat quantities generated by a burner at respective fuel increasing time points. At the time of extinction, the fuel supply amount and an air supply amount are both reduced to given values, respectively, and held at the given values for a given time period. After lapse of the given time period, the fuel supply amount is reduced to zero, while the air supply amount is held at the given value for a further given time period. The air supply amount is changed with a given time delay relative to a change of the fuel supply amount. The time delay may be adjusted depending on a temperature in the burner.

REFERENCES:
patent: 4538985 (1985-09-01), Zwicker
patent: 4915615 (1990-04-01), Kawamura et al.
patent: 5088918 (1992-02-01), Schaale et al.
patent: 5480093 (1996-01-01), Tochizawa et al.

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