Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1976-03-26
1978-03-21
Myhre, Charles J.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
417218, F02M 3900
Patent
active
040797198
ABSTRACT:
A fuel injection pump including a charge pump for delivering discrete pulses of high pressure liquid fuel sequentially to the several cylinders of an associated engine is provided with an angularly adjustable cam ring to control the timing of the pumping strokes. The position of the cam ring is controlled by an advance piston, the position of which is controlled by a hydraulic pressure correlated with engine speed. A load sensing piston, engageable with one end of the advance piston above a fixed amount of timing advance, is subjected to the pressure of the metered fuel down-stream of the metering valve which controls the quantity of fuel delivered by the pump to urge the advance piston in a direction to retard the timing of the pumping strokes to result in a timing control system in which the timing is more advanced at high speeds and light load than it is at high speeds and full load.
REFERENCES:
patent: 2660992 (1953-12-01), Rossa
patent: 3051154 (1962-08-01), Kemp
patent: 3116728 (1964-01-01), Evans
patent: 3394688 (1968-07-01), Rossa
patent: 3433159 (1969-03-01), Kemp
patent: 3771506 (1973-11-01), Davis
Tease William Walter
Varcoe Ellis
Myhre Charles J.
Nelli R. A.
Stanadyne Inc.
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