Engine system
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United States of America Patent
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-
Jul 19, 2022
Grant Date -
N/A
app pub date -
Oct 28, 2021
filing date -
Nov 13, 2020
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An engine system is provided, including a controller which estimates a mass ratio (G/F) of intake air inside a cylinder (containing fresh air and burnt gas) to fuel, and controls devices of an engine at a given engine speed so that, while a demanded engine load is a first load, at least part of a mixture gas inside the cylinder combusts by flame-propagation when the estimated G/F is below a first G/F, and the entire mixture gas combusts by compression ignition when the estimated G/F is above the first G/F, whereas while the demanded load is a second load (>the first load), at least part of the mixture gas combusts by flame-propagation when the estimated G/F is below a second G/F (
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