Automatic system to feed burners with diesel or light fuel-oil

Details Automatic system to feed burners with diesel or light fuel-oil Automatic system to feed burners with diesel or light fuel-oil

1992-10-29

1994-06-07

Yeung, James C.

Combustion

With indicator or inspection means

Correlated with action of condition responsive burner control

431 22, 431 65, 431117, F23N 524

Patent

active

053184378

ABSTRACT:
From a fuel storage tank (13), a filter (1) is installed to prevent any obstruction, followed by a vacuum gauge (2) and a motor-driven pump (3) to deliver the fuel to the burner (12): immediately prior to said burner, there is a pressure relief valve (11). Said vacuum gauge (2) controls the suction of the motor-driven pump (3) and the level of dirt in the filter (1). A retention valve (4) is installed following said motor-driven pump (3), with a pressure gauge (5) and a pressurestat (6) fitted with two contacts, one for maximum and minimum or service contact, and the other for safety, to prevent fuel spillage in case of a pipe breakage, shutting off the motor-driven pump (3) to which the pressurestat (6) is connected by an electrical control (7). A safety valve opens if pressure is excessive and returns the fuel to the storage tank (13) while an expansion tank (8) keeps continuous pressure in the circuits even though the motor-driven pump (3) is operating intermittently. Any excess fuel is eliminated from the burner (12) by a return system fitted with a retention valve (16), through the pipe (14) situated upstream from the relief valve (11).

REFERENCES:
patent: 3232332 (1966-02-01), Schuss et al.
patent: 4490105 (1984-12-01), Hunsberger et al.
patent: 4788963 (1988-12-01), Mutchler

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