Ignition apparatus and method for a premixed charge in a gaseous-fueled engine
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United States of America Patent
Stats
-
Sep 29, 2020
Grant Date -
Apr 12, 2018
app pub date -
Apr 8, 2016
filing date -
Apr 9, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Premixed engines have ignition issues when engine speed and load are below a predetermined range. An ignition apparatus for igniting a premixed charge in a gaseous-fueled internal combustion engine comprises an ignition device associated with a combustion chamber of the internal combustion engine. There is at least one of a dilutant injector for introducing a diluting agent that forms a stratified charge around the ignition device and an enrichment injector for introducing gaseous fuel that forms a stratified charge around the ignition device. An electronic controller is operatively connected with the ignition device and the at least one of the dilutant injector and the enrichment injector and programed to at least one of actuate the dilutant injector to introduce the diluting agent when the ignition device decreases a local air-fuel equivalence ratio around the ignition device below a predetermined threshold; and actuate the enrichment injector to introduce the gaseous fuel to decrease the local air-fuel equivalence ratio when engine load and engine speed are below a predetermined threshold engine load and speed range and when the ignition device does not affect the local air-fuel equivalence around the ignition device.
First Claim
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International Classification(s)
- 2016 Application Filing Year
- F02M Class
- 1722 Applications Filed
- 1301 Patents Issued To-Date
- 75.56 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F02M Class
- 0 % this patent is cited more than
- 5 Age
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