Method for supplying an internal combustion engine with liquefie

Details Method for supplying an internal combustion engine with liquefie Method for supplying an internal combustion engine with liquefie

1982-09-21

1984-12-04

Cross, Ethel R.

Internal-combustion engines

Charge forming device

Gaseous fuel and air mixer

123525, 123452, 48180R, 48189, F02B 4300, F02M 2104

Patent

active

044857926

ABSTRACT:
A method for supplying an internal combustion engine with liquefied petroleum gas (LPG) and an apparatus for blowing LPG into the intake manifold of the engine. The apparatus includes an evaporator-pressure regulating valve, downstream of which a metering valve having a metering piston is provided. The metering piston is movable in a guide bore and opens a metering opening to a greater or lesser extent. The adjustment of the metering piston is effected in accordance with the quantity of air aspirated by the engine by means of an air flow rate meter, as a result of which a quantity of LPG corresponding to the aspirated air quantity can be metered. The pressure at the evaporator-pressure regulating valve is variable via a control pressure line by means of a pneumatic control medium via a pressure control valve in such a manner that it is possible to regulate a mixture adapted to operating parameters of the engine. For instance, a rich mixture can be produced during warmup, acceleration and full load, while a lean mixture is produced at partial load.

REFERENCES:
patent: 2821843 (1958-02-01), Mengekamp et al.
patent: 2831758 (1958-04-01), Warner et al.
patent: 3184295 (1965-05-01), Baverstock
patent: 4391254 (1983-07-01), Jaggle et al.

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