Systems, devices, and methods for regenerating a particulate filter
AssigneeJtsmcdp, LLC
InventorsMark Colaw, John Stiles, David Philips
Life of this patent
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Abstract
Embodiments described herein methods can be used in particulate filter regeneration, such as particulate filters used for filtering the exhaust of an engine, e.g., a diesel engine. Systems herein can be configured to dispense combustion gas(es) into housing were a particulate filter is contained and to ignite the combustion gases. Methods for conducting a safety verification process of such systems are disclosed, as well as methods for regenerating the filters. Still other embodiments are described.
Claims19
A method of operation associated with a particulate filter regeneration system, the method comprising:
- performing a verification process of the particulate filter regeneration system, wherein performing the verification process includes:
- opening a first valve downstream of a first fuel reservoir, a fuel pressure regulator, a second valve, and a pressure sensor disposed between the first valve and the second valve, where the first valve and the second valve each define a portion of a first conduit;
- closing the first valve;
- after closing the first valve, comparing a first pressure between the first valve and the second valve to a first threshold value;
- and
- if the first pressure between the first valve and the second valve is less than the first threshold value, opening the second valve, closing the second valve, and comparing a second pressure between the first valve and the second valve to a second threshold value.
A method of operation associated with a particulate filter regeneration system, the method comprising:
- performing a verification process of the particulate filter regeneration system, wherein performing the verification process includes:
- opening a first valve, the first valve positioned downstream of a first fuel reservoir, a second valve, and a pressure sensor disposed between the first valve and the second valve;
- based on a first pressure between the first valve and the second valve being less than or equal to a first threshold value:
- adjusting the second valve;
- and
- comparing a second pressure between the first valve and the second valve to a second threshold value.
Dependencies are inferred from the claim text.