Liquid fuel injection pumping apparatus

Details Liquid fuel injection pumping apparatus Liquid fuel injection pumping apparatus

1975-07-17

1977-04-26

Freeh, William L.

Pumps

Successive stages

Condition responsive control of fluid

123139AQ, 417462, F04B 300

Patent

active

040198359

ABSTRACT:
A liquid fuel injection pumping apparatus includes an injection pump to which fuel is supplied by a feed pump by way of a throttle which includes an axially movable member. The pressure of fuel upstream of the throttle is controlled by a valve so that its pressure varies in accordance with the law RN.sup.2. The apparatus also includes a further valve which provides a substantially constant pressure and this pressure is applied to a piston by way of a further orifice the size of which depends upon the setting of the throttle. The further piston influences the timing of injection of fuel by the apparatus and in addition a pressure which is proportional to the square of the speed at which the apparatus is driven, is generated and is also used to influence the timing of delivery of fuel.

REFERENCES:
patent: 2669094 (1954-02-01), Lee
patent: 3394688 (1968-07-01), Roosa
patent: 3536421 (1970-10-01), Kemp
patent: 3861833 (1975-01-01), Salzgeber et al.
patent: 3861835 (1975-01-01), Bakti
patent: 3897764 (1975-08-01), Bakti

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