Limit and control for heavy oil preheating

Details Limit and control for heavy oil preheating Limit and control for heavy oil preheating

1977-01-05

1978-03-28

Dority, Jr., Carroll B.

Combustion

Timer, programmer, retarder or condition responsive control

Actuation sequence of electric feed heater and feed flow...

431 36, F23H 500

Patent

active

040812340

ABSTRACT:
A control system that provides a safety limit and temperature control for an oil preheater used with oil burners that burn viscous grades of fuel oil. The control incorporates a first temperature sensor for control of a fuel oil heater and a second temperature sensing means to provide for a safe start check of an oil burner.The start is allowed only if the temperature of the oil is at or above the temperature required for proper operation of the fuel burner.

REFERENCES:
patent: 1640729 (1927-08-01), Scott
patent: 1655852 (1928-01-01), Adams
patent: 3008019 (1961-11-01), Scheidig
patent: 3209099 (1965-09-01), Zearfoss
patent: 3295081 (1966-12-01), Bowyer et al.
patent: 3649936 (1972-03-01), Masuda et al.
Honeywell -- Combination Aquastat and Protectorelay Control -- Rev. 11-77, (.028) - Form Number 60-2144-1, Honeywell, Minneapolis, Minn. 55408.

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