Gaseous fuel injection system for internal combustion engines

Internal-combustion engines – Burning by highly compressed air – Oil engine air preheated

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123527, F02B 30

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active

048299570

ABSTRACT:
A gaseous fuel injection system for internal combustion engines features a "variable-pressure-controller" which translates a varying negative pressure, sensed in the engine's air intake system by means responsive to the rate of flow of the intake air, into a proportionately varying amount of gaseous fuel at a positive pressure. That fuel is then injected into the engine's air intake system upstream or downstream of the throttle valve through flow restrictor means which cooperate with the variable-pressure-controller to provide an amount of fuel proportionate to the rate of air flow through the engine's air intake system. The invention is entirely mechanical-pneumatic in operation and readily adapted to a wide variety of liquid fueled engines, carbureted as well as fuel injected, or to one for gaseous fuel only.

REFERENCES:
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patent: 3687119 (1972-08-01), Hoogeboom
patent: 4483302 (1984-11-01), Mannessen
patent: 4499885 (1985-02-01), Weissenbach et al.
patent: 4596211 (1986-06-01), Szloboda
patent: 4632083 (1986-12-01), Reggiani
patent: 4765303 (1988-08-01), Jones

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