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US 10,054,102 B2Granted
Quiescent chamber hot gas igniter
AssigneeWoodward, Inc.
InventorsDomenico Chiera, Gregory James Hampson
Life of this patent
Estimating the term…
Abstract
An engine has an ignition source in a combustion chamber of the engine. An inner housing is provided that includes one or more jet apertures and defines an inner chamber containing the ignition source. An outer housing (or pre-chamber) is provided that includes one or more jet apertures in communication with the main combustion chamber and defines an outer chamber containing the inner housing.
Claims7
A method of igniting an air-fuel mixture in an internal combustion engine, the method comprising:
- feeding a first portion of air-fuel mixture from a main combustion chamber of the internal combustion engine into an inner housing of a pre-chamber chamber of the internal combustion engine through an aperture extending through a valve closure in the pre-chamber, the valve closure sealing a jet aperture between the inner housing and an outer housing of the pre-chamber;
- igniting the first portion of air-fuel mixture in the inner housing;
- retaining the ignited first portion of air-fuel mixture in the inner housing with the sealed jet aperture;
- moving the valve closure with respect to the jet aperture to open the jet aperture, the open jet aperture releasing the ignited first portion of air-fuel mixture from the inner housing into the outer housing;
- igniting a second portion of air-fuel mixture in the outer housing with the ignited first portion of air-fuel mixture from the inner housing;
- and
- igniting a third portion of air-fuel mixture in the main combustion chamber with the ignited second portion of air-fuel mixture from within the outer housing.
4 more elements
Dependencies are inferred from the claim text.