Starting system for pilot-ignition gas engine
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United States of America Patent
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-
Jan 31, 2006
Grant Date -
Jun 10, 2004
app pub date -
Feb 7, 2002
filing date -
Aug 17, 2000
priority date (Note) -
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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.
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