Starting system for pilot-ignition gas engine

Details Starting system for pilot-ignition gas engine Starting system for pilot-ignition gas engine

2006-01-31

2006-01-31

Dolinar, Andrew M. (Department: 3747)

Internal-combustion engines

Precombustion and main combustion chambers in series

Having combustible mixture forming means

Reexamination Certificate

active

06990946

ABSTRACT:
The object of the present invention is to enable the reliable compression ignition from starting of a pilot oil ignition gas engine in whose cylinder head there is provided a precombustion chamber unit with pilot injection valve that has liquid fuel injection valves and a precombustion chamber by using the injection of pilot oil from the liquid fuel injection valves, and to thereby allow the engine to be started smoothly. The position of a fuel rack (fuel control rod) that controls the discharge quantity of fuel injection pumps that feed pilot oil to the liquid fuel injection valves is controlled by a control apparatus via a rack control actuator (a position control actuator). In addition, the control apparatus counts the engine speed from pulses generated by a speed sensor and, in a region where the engine speed is low, sets the discharge quantity of the fuel injection pumps to a large quantity. As a result, pilot oil is reliably injected from the liquid fuel injection valves, and gaseous fuel is reliably ignited and burned.

REFERENCES:
patent: 3636933 (1972-01-01), Ohtani et al.
patent: 6209511 (2001-04-01), Goto et al.
patent: 58-107834 (1983-06-01), None
patent: 58-117329 (1983-07-01), None
patent: 59-137349 (1984-09-01), None
patent: 11-324805 (1999-11-01), None

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