Internal combustion engine with methane injection system
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United States of America Patent
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Sep 16, 1997
Grant Date -
N/A
app pub date -
Mar 5, 1996
filing date -
Feb 16, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
An internal combustion engine is provided with a methane feed system including a plurality of methane injection devices respectively associated with the various cylinders of the engine. The methane injection devices are mounted within respective seats communicating with a distributing conduit or rail for feeding methane. The seats for the injection devices in the rail are formed in an auxiliary body separate from the intake manifold and the head of the engine. An electronic control unit provides for the control of the injection devices on the basis of signals indicative of the parameters of operation of the engine so as to carry out the methane injection at each cylinder when the rotational speed of the engine is lower than a predetermined threshold when the intake valve of the cylinder is open.
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