Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1973-07-02
1976-06-29
Myhre, Charles J.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
123139AR, 123139R, F02M 3900
Patent
active
039658759
ABSTRACT:
A fuel injection system for a diesel engine. An injection rate control device, such as an auxiliary spring, is connected in line with the conventional injection train which operates the injector plunger in synchronism with the rotation of the camshaft. When an auxiliary spring is used as the injection rate control device, the auxiliary spring has a lower spring rate than that of the injection train so that the injector plunger is advanced at a different rate when it is under the control of the auxiliary spring. Means are included for rendering the auxiliary spring ineffective during a portion of the plunger advancement so that the rate of plunger advancement is controlled by the auxiliary spring during the initial part of the advancing stroke, and by the conventional part of the injection train during the balance of the advancing stroke. The auxiliary spring automatically varies ignition timing and injection rate as a function of engine speed and/or load.
REFERENCES:
patent: 2068585 (1937-01-01), Wurtele
patent: 3237568 (1966-03-01), Morgan et al.
patent: 3810453 (1974-05-01), Wolfe
Cox Ronald B.
Cummins Engine Company, Inc.
Myhre Charles J.
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