Compositions – Inorganic luminescent compositions – Tungsten containing
Patent
1986-03-26
1986-12-02
Kyle, Deborah L.
Compositions
Inorganic luminescent compositions
Tungsten containing
102334, 89 111, 89 3601, C09K 330, C06D 300, F41H 906
Patent
active
H00001724
ABSTRACT:
An air purge system device for use with nozzle tubes carrying fuel oil to a iesel engine exhaust system for vaporization of the fuel oil. Provided is at least one nozzle tube for carrying fuel oil to the diesel engine exhaust system and an electrically controlled solenoid valve for controlling flow of fuel from a fuel supply source for the diesel engine to the nozzle tubes. An air purge line is provided for forcing air into the tube from the diesel engine air box. A one-way check valve is provided to permit air flow from the air purge line to the tube and prevent fuel flow from the fuel valve to the air purge line.
The method described prevents coke build-up in nozzle tubes carrying the fuel oil, which fuel is vaporized during operation of a fuel supply valve. The method contemplates supplying air under pressure from a positive pressure air source to an air purge line positioned to force air into the nozzle tubes when fuel supply valve is closed and regulating flow in the air purge line by a one-way check valve on the purge line which permits air flow towards the tube and prevents fuel flow in the air purge line. Operation of the device in engine compartments having an operating temperature above the vaporization temperature of fuel oil purges the nozzle tubes and cools the interior of the nozzle tubes to prevent coking by volatilization of residual fuel oil in the system after the supply has been turned off.
Curtis Donald L.
Pribyl William J.
Carone Michael J.
Gibson Robert P.
Kyle Deborah L.
Lane Anthony T.
Sachs Michael C.
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