Negative pressure operating method
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United States of America Patent
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-
Nov 7, 2023
Grant Date -
Jun 8, 2023
app pub date -
Nov 30, 2022
filing date -
Dec 8, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
Method of operating an internal combustion engine that applies to both types of ignition types; Spark Ignition (SI) and Compression Ignition (CI). The method comprises opening the intake valve, allowing the fuel and air mixture to flow through the intake valve and into the chamber during at least during a portion of the intake stroke; closing the intake port during a portion of the intake stroke; applying a negative pressure during a portion of the intake stroke; directly or indirectly igniting the fuel and air mixture during a portion of the intake stroke; opening the exhaust valve during the exhaust stroke.
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