Oil burner pumping system with air purging valve

Details Oil burner pumping system with air purging valve Oil burner pumping system with air purging valve

1975-11-13

1977-05-03

Freeh, William L.

Pumps

With condition responsive pumped fluid control

Plural paths having individual condition responsive control...

417435, 417502, F04B 4900, F04B 2100

Patent

active

040211550

ABSTRACT:
A fuel burner pumping system includes a pump having an inlet communicating with a fuel source and an outlet which communicates with a control valve assembly for regulating the pressure of the fuel supplied to the fuel burner nozzle or nozzles through a nozzle passage leading from an outlet port of a main chamber in the control valve assembly. High pressure fuel is pumped into the main chamber through a first outlet passage leading from the pump. A second outlet passage leading from the pump to the nozzle passage by-passes the control valve assembly so that air may be purged from the system when the pump initially is started. An air purging valve within the second outlet passage is movable between closed and open positions for blocking fuel flow through such passage during normal operation of the pump and for opening the second passage when the pump initially is started. In one form of the invention, the purging valve is operable manually and, in another form of the invention, the air purging valve operates automatically.

REFERENCES:
patent: 2442361 (1948-06-01), Holman
patent: 2978149 (1961-04-01), Rosen
patent: 3216360 (1965-11-01), Wilson et al.
patent: 3392674 (1968-07-01), Schlosser
patent: 3446232 (1969-05-01), Erikson

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