Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1976-04-15
1977-09-20
Dority, Jr., Carroll B.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
123139AJ, F02M 3900
Patent
active
040489710
ABSTRACT:
A fuel injection system for an internal combustion engine in which a ram is fixed to and movable with a piston reciprocatively mounted in the cylinder, the ram being provided with a fuel compression chamber having a fuel injection port communicating with the cylinder. A stem is telescopically and slidably related to the ram. Fuel is introduced into the ram chamber under suction pressure in the ram chamber as the ram and stem are relatively extended when the ram moves with the piston in one direction in the cylinder, and the fuel is compressed in the ram chamber between the ram and stem as the ram and stem are relatively retracted when the ram moves with the piston in the other direction in the cylinder, the compressed fuel being ejected at a predetermined pressure through the injection port and into the cylinder. A first valve is provided in the ram which is normally closed to preclude flow through the injection port, and a second valve is located in the tubular stem and interconnects the stem and ram chamber. A fuel inlet introduces fuel into the tubular stem at one side of the second valve. An actuator is connected to the second valve for opening the second valve and permitting flow from the stem into the ram chamber, the first valve opening at the predetermining pressure to eject the compressed fuel in the ram chamber through the injection port. The first valve includes a check valve element. The second valve includes a second valve element, and a second valve rod connected to the second valve element and extending in the stem. The actuator includes a plunger engaging the valve rod for moving the second valve element to the open position.
REFERENCES:
patent: 2799535 (1957-07-01), French
patent: 2846987 (1958-08-01), Nehel
patent: 2986134 (1961-05-01), Bernard
Cox Ronald B.
Dority Jr. Carroll B.
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