Fuel injection pumping apparatus

Details Fuel injection pumping apparatus Fuel injection pumping apparatus

1977-02-14

1978-04-04

Freeh, William L.

Pumps

Motor driven

Fluid motor

123139AS, F04B 1700

Patent

active

040824810

ABSTRACT:
A fuel injection pumping apparatus includes a displacement piston housed within a cylinder and movable towards one end of the cylinder to effect injection of fuel to an associated engine. The displacement piston is moved by a fluid pressure operable member and valve means is provided to control the application of fluid pressure to the member from a source. There is interposed between the valve means and the cylinder containing the fluid pressure operable member, a variable orifice which acts to limit at least the initial rate of movement of the displacement member thereby to control the initial rate of injection of fuel.

REFERENCES:
patent: 3481587 (1969-12-01), Ruhnau
patent: 3487783 (1970-01-01), Curran et al.
patent: 3500799 (1970-03-01), Benson
patent: 3592176 (1971-07-01), Fenne
patent: 3919989 (1975-11-01), Jarrett et al.

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