Charge injection device

Details Charge injection device Charge injection device

1984-09-04

1986-12-16

Hix, L. T.

Electricity: electrical systems and devices

Electric charging of objects or materials

239690, B05B 500

Patent

active

046301690

ABSTRACT:
In charge injection apparatus comprising essentially a charge injector (1) and a fluid supply arrangement (2) for the charge injector, fluid to be charged is introduced into a mixing chamber (20) via a supply line (25) where it becomes mixed with a volatile fluid, such as a high vapor pressure hydrocarbon or a halogenated component supplied through line (28). The resulting fluid mixture is introduced into the charge injector and, on emerging through the exit orifice (5) of the charge injector into ambient atmosphere, the volatile fluid volatilizes to form a blanket of gas of higher dielectric strength than that of the ambient atmosphere. In this way, resistance to dielectric breakdown is increased which enables the charge injector to be operated at higher potentials then would be the case in the absence of the volatilized fluid, without dielectric breakdown occurring.

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patent: 4255777 (1981-03-01), Kelly
patent: 4380786 (1983-04-01), Kelly
patent: 4435261 (1984-03-01), Mintz et al.
patent: 4467961 (1984-08-01), Coffee et al.

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